S-8330/8331 Series S-8330/8331 Series CMOS PWM-control step-up sw
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY
S-8330/8331 Series
S-8330/8331 Series CMOS PWM-control step-up switching regulator which mainly consists reference voltage source, oscillation circuit, power (for S-8330 Series) error amplifier. output voltage adjust built-in Electric volume circuit equip with shutdown function. S-8330 Series current consumption because CMOS structure step-up switching regulator constructed externally connecting only coil, capacitor diode. This feature, along with 8-Pin SSOP package external components, makes S-8330 Series ideal bias generators portable equipment. applications requiring high output current, products used with external transistor (S-8331 Series) also available.
Features
Maximum output voltage: step) range adjusted electric volume Output voltage accuracy :±2.4% Output current: VIN= V,VOUT= current consumption During operation: (typ.) (VIN= kHz) During shutdown (max.) Shutdown function: Stepping operation stopped Vout shorted while shutdown. Input voltage range: Soft start function: msec (typ.) Built-in oscillation circuit: Oscillating frequency: (typ.) series) Oscillating frequency: (typ.) series) 8-pin SSOP plastic package 8-bit built-in electric volume circuit External transistor type available (S-8331 Series)
Applications
Power supplies medium type large type panel. Power supplies portable devices such pagers, handy calculators, remote controllers Constant voltage power supplies cameras, video equipment, communications equipment
Package
8-pin SSOP plastic package (PKG drawing code FS008-A)
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Block Diagram
CONT VOUT Control Circuit VDIN VCLK VSTRB
External Transistor
Oscillation Circuit
VREF
RESET
ON/OFF
S-8330 Series Figure Block Diagram
S-8331 Series
Selection Guide
Product Name
Tape Specification Package name (abbreviation) Maximum Output voltage Product category fosc=180kHz fosc= 50kHz Power transistor Built-in switch. External transistor.
Product
list S-8330AXXFS Series S-8330A20FS-T2 S-8330A22FS-T2 S-8330A24FS-T2 S-8330A26FS-T2 S-8330A28FS-T2 S-8330A30FS-T2 S-8330BXXFS Series S-8330B20FS-T2 S-8330B22FS-T2 S-8330B24FS-T2 S-8330B26FS-T2 S-8330B28FS-T2 S-8330B30FS-T2 S-8331AXXFS Series S-8331A20FS-T2 S-8331A22FS-T2 S-8331A24FS-T2 S-8331A26FS-T2 S-8331A28FS-T2 S-8331A30FS-T2
Output voltage range
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Assignment
8-pin SSOP view
Functions Electric volume data input Electric volume clock input Electric volume strobe signal input Output voltage Power supply External inductor connection (Note External transistor connection (Note Shutdown ON/OFF "H":normal operation (stepping operation) "L":stop stepping operation Note S-8330 Series: Open drain output Note S-8331 Series: CMOS output name VDIN VCLK VSTRB VOUT CONT
Figure Assignment
Absolute Maximum Ratings
Note: Built-in protect circuit static electricity chip. However, prevent charge static electricity which exceeds capacity protection circuit.
(Unless otherwise specified: Ta=25°C) Parameter VOUT voltage CONT voltage CONT current voltage current Input voltage Power dissipation Operating temperature range Storage temperature range Symbol VOUT VCONT ICONT VEXT IEXT VIN,VCLK,VDIN, VSTRB,ON/OFF TOPR TSTG Ratings -0.3 -0.3 VSS-0.3 VOUT+0.3 VSS-0.3 +125 Unit
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Electrical Characteristics
S-8330A Series Step-Up Switching Regulator
Items Symbols S-8330A20FS S-8330A22FS Output voltage range VOUT S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS Output voltage accuracy Input voltage Current consumption Current consumption ISS1 ISS2 ISSS =5V, VOUT Output voltage Max. =2V, VOUT Output voltage Min. Power =VDIN=0V,VIN=VCLK=VSTRB=5V Switching current Switching transistor leakage current ISWQ VCONT=0.4V Power VCONT=9V S-8330A20FS S-8330A22FS Line regulation VOUT1 S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS Load regulation VOUT2 IOUT=output voltage/2.4M output voltage/24k S-8330A20FS S-8330A22FS VOUT ±1.0 ±1.1 ±1.2 ±1.3 ±1.4 ±1.5 ±300 ±330 ±360 ±390 ±420 ±450 Conditions Min. (Unless otherwise specified: Ta=25°C) Typ. Max. ±2.4% Unit Mea.Circ.
Current consumption during power
Output voltage temperature coefficient
-20°C 70°C
S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS
Oscillating frequency
fosc
VOUT =output Measure waveform CONT
Maximum duty ratio
Duty VOUT =output Measure waveform CONT VSH1 VOUT =output 3.0V
Power terminal input voltage
VSH2
Check oscillation CONT <3.0V VOUT =output Check oscillation stop CONT
Power terminal input leakage current Soft start time Efficiency Externally attached parts: Coils
EFFI
CD54 (47µH) Sumida Electric Co., Ltd. MA720 Schottky type Matsushita Electronic Components Co., Ltd.
Diodes
Capacitors: tantalum type (two circuits 50V, 4.7µF connected parallel) Nichicon Corporation VIN=5V, VOUT=VOUT Max. IOUT= output voltage /24k ON/OFF=5V,VDIN=VCLK=VSTRB=0V Note: Output voltage specified above typical value output voltage.
Seiko Instruments Inc.
S-8330B Series Step-Up Switching Regulator
Item Symbol
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
(Unless otherwise specified: Ta=25°C) Conditions S-8330B20FS S-8330B22FS Min. Typ. Max. ±2.4% ISS1 ISS2 ISSS =5V, VOUT =Output voltage Max. =2V, VOUT =Output voltage Min. Power =VDIN=0V,VIN=VCLK=VSTRB=5V Unit Mea. Cir.
Output voltage range
VOUT
S-8330B24FS S-8330B26FS S-8330B28FS S-8330B30FS
Output voltage accuracy Input voltage Current consumption Current consumption Current consumption during power
Switching current Switching transistor leakage current
ISWQ
VCONT=0.4V Power pin=0V VCONT=9V S-8330B20FS S-8330B22FS
±300 ±330 ±360 ±390 ±420 ±450
Line regulation
VOUT1
S-8330B24FS S-8330B26FS S-8330B28FS S-8330B30FS
Load regulation
VOUT2 IOUT=Output voltage/2.4M Output voltage/24k S-8330B20FS S-8330B22FS VOUT
±1.0 ±1.1 ±1.2 ±1.3 ±1.4 ±1.5
Output voltage Temperature coefficient
Ta=-20°C +70°C
S-8330B24FS S-8330B26FS S-8330B28FS S-8330B30FS
Oscillating frequency
fosc
VOUT =Output Measure waveform CONT
Maximum duty ratio
Duty VOUT =Output Measure waveform CONT VSH1 VOUT =Output 3.0V
Power Input voltage
VSH2
Check oscillation CONT <3.0V VOUT =Output Check oscillation stop CONT
Power Input leakage current Soft start time Efficiency Externally attached parts: Coils
EFFI
CD54 (47µH) Sumida Electric Co., Ltd. MA720 Schottky type Matsushita Electronic Components Co., Ltd.
Diodes
Capacitors: tantalum type (two circuits 50V, 4.7µF connected parallel) Nichicon Corporation VIN=5V,VOUT=VOUT Max. IOUT= output voltage /24k ON/OFF=5V,VDIN=VCLK=VSTRB=0V Note: Output voltage specified above typical value output voltage.
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
S-8331A Series Step-Up Switching Regulator
Item Symbol S-8330A20FS S-8330A22FS Output voltage range VOUT S-8330A24FS S-8330A26FS S-8330A28FS S-8330A30FS Output voltage accuracy Input voltage Current consumption Current consumption Current consumption during power ISS1 ISS2 ISSS =5V, VOUT =Output voltage Max. =2V, VOUT =Output voltage Min. Power =VDIN=0V,VIN=VCLK=VSTRB=5V Output current EXTpin IEXTH IEXTL VEXT=VIN-0.4V VEXT=0.4V S-8331A20FS S-8331A22FS Line regulation VOUT1 S-8331A24FS S-8331A26FS S-8331A28FS S-8331A30FS Load regulation VOUT2 IOUT=Output voltage/2.4M Output voltage/24k S-8331A20FS S-8331A22FS Output voltage Temperature coefficient VOUT Ta=-20°C +70°C S-8331A24FS S-8331A26FS S-8331A28FS S-8331A30FS Oscillating frequency fosc VOUT =Output Measure waveform Maximum duty ratio Duty VOUT =Output Measure waveform VSH1 Power Input voltage VSH2 VOUT =Output Check oscillation VOUT =Output Check oscillation stop Power Input leakage current Soft start time Efficiency Externally attached parts: Coils CD54 (47µH) Sumida Electric Co., Ltd. MA720 Schottky type Matsushita Electronic Components Co., Ltd. tantalum type (two circuits 50V, 4.7µF connected parallel) Nichicon Corporation. Diodes Capacitors: EFFI 3.0V <3.0V ±1.0 ±1.1 ±1.2 ±1.3 ±1.4 ±1.5 ±300 ±330 ±360 ±390 ±420 ±450 Conditions Min.
(Unless otherwise specified: Ta=25°C) Typ. Max. ±2.4% Unit Mea. Cir.
Transistors: 2SD1624 Sanyo Electric Inc. Base resistance (Rb):1.0k Base capacitor (Cb):2200pF (ceramic type) VIN=5V, VOUT=VOUT Max. IOUT= output voltage/24k ON/OFF=5V, VDIN=VCLK=VSTRB=0V Note: Output voltage specified above typical value output voltage.
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Characteristics Common S-8330/31Series Electric Volume
Item Symbol S-833XX20FS Conditions Min. S-833XX22FS S-833XX24FS Output voltage range (Note VOUT S-833XX26FS S-833XX28FS S-833XX30FS Potential division accuracy Electric volume resolution Error linearity (Note Data setup time Data hold time VCLK falling edge VSTRB rising edge VSTRB pulse width VSTRB falling edge VCLK rising edge VCLK pulse width VCLK period VDIN,VCLK,VSTRB Input voltage level VSHC2 VDIN,VCLK,VSTRB Input voltage level VDIN,VCLK,VSTRB Input leakage current ISLC VSLC <3.0V VSHC1 3.0V
(Unless otherwise specified:Ta=25°C) Typ. 1/256 Max. ±2.4 ±1/2 Unit Mea. cir.
4.17 8.33
VDIN
next
VCLK
VSTRB
Figure Data Input Timing
Note electric volume 8-bit resolution. However, error linearity exceed ±1/2LSB only before after switching from (from 01111111 10000000) vice versa. When electric volume used within variable range error linearity corresponds bits (±2.4% potential division accuracy ensured).
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Measurement Circuits
Oscilloscope
*300
VOUT VSTRB VCLK VDIN
Other Pins Meas
Open
CONT(EXT) ON/OFF
ON/OFF
needed *S-8331 Series.
CONT(EXT) ON/OFF
VOUT VSTRB VCLK VDIN
VOUT VSTRB VCLK VDIN
CONT ON/OFF
*300
needed *S-8331 Series.
CONT
VOUT VSTRB VCLK VDIN
ON/OFF
VOUT VSTRB VCLK VDIN
2200pF
ON/OFF
Figure Measurement Circuits
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Operation
Step-Up DC-DC Converter S-8330/31 Series DC-DC converter using pulse width modulation method (PWM) with current consumption. Conventional DC/DC converters have drawback. Namely, increase ripple voltage occurs because pulses skipped when output load current flows ripple frequency output voltage varies. S-8330/31 Series, pulse width varies range depending upon load current, switching frequency does vary. This allows ripple voltage switching reduced with filter. Also, internal soft start circuit controls rush current output voltage overshoot generated when starts step-up operation setting power level. powering rush current flows charge capacitive components output capacitor "COUT" load coils diodes.
COUT
ON/OFF
CONT
VOUT
Electric Volume
Figure Step-Up DC-DC Converter following fundamental equations step-up switching regulators (see Figure voltage CONT immediatetly after turned (current which flows into zero): VA=VS saturated voltage
Change with time:
Integreation above equation (IL) follows:
.(3)
flows into during tON. time determined depending upon oscillating frequency OSC. peak current (IPK) after tON:
energy stored represented 1/2OL (IPK)2. When turned (tOFF), energy stored transmitted through diode. generates. Then reverse voltage (VL)
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
(VOUT+VD) (VD: Diode forward voltage)
voltage CONT rises only voltage corresponding VOUT+VD. change current (IL) which flows through diode into VOUT during tOFF:
VOUT+VD
Integration above equation follo IL=IPK
VOUT+VD
During tON, energy stored transmitted VOUT. When output current (IOUT) flows from VOUT, energy capacitor (COUT) consumed. result, voltage COUT decreases goes lowest value after tON. When turned OFF, energy stored transmitted through diode into COUT, voltage COUT rises drastically. VOUT time function that indicates maximum value (ripple voltage VP-P) when current flowing into VOUT through diode load current IOUT match. Next, ripple voltage found based following equations:
IOUT when time until VOUT reaches maximum level immediately after tON: IOUT =IPK
VOUT+VD
(IPK IOUT)
VOUT+VD
tOFF when IL=0 (the energy inductor completely transmitted). Based equation
tOFF VOUT+VD
(10)
When substituting equation (10) equation (9): t1=tOFF
IOUT
tOFF
(11)
Electric charge
which charged COUT during
ILdt=IPK =IPK
VOUT+VD
VOUT+VD
(12)
When substituting equation (12) equation (9): Q1=IPK
IPK+IOUT (IPK IOUT) (13)
rise voltage (VP-P) VP-P=
COUT COUT
IPK+IOUT
(14)
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
When taking into consideration (Electric Series Resistance) RESR IOUT COUT during VP-P=
COUT
IPK+IOUT
IPK+IOU
RESR
IOUT COUT
(15)
When substituting equation (15) equation (11): VP-P=
(IPK IOUT)2 2IPK
tOFF COUT
IPK+IOUT
RESR (16)
effective methods reduce ripple voltage maximize capacitance capacitor connected output minimize ESR. Power (ON/OFF pin) This stops starts operation. Turnig power stops operation internal circuits excluding electric volume, minimizes current consumption short-curcuits VOUT VSS. this time, current flows coils diode input side into VSS. Therefore, switch current needed. Figure shows circuit example using 2SJ356 (Pch FET) current cutting switch. This circuit example turns 2SJ356 connection with reset signal power using small signal transistor (Nch FET). Zenor diode (ZD) used purpose clamping voltage apply high voltage more) rated voltage between gate source 2SJ356. However, when circuit used below, Zenor diode needed. Invalid current flowing into resistors during step-up operation affect efficiency. maximum level. resistance high value, drop voltage occurs resistor current current cutting switch 2SJ356 does normally function. careful (Note that efficiency characteristics shown reference data were measured without attaching current cutting switch different from that shown this example).
2SJ356 ZD:15V CONT VOUT 500k RESET ON/OFF
RB:1M
Figure Circuit Example Using 2SJ356 power configured shown Figure this circuit under floating state because power internally pulled pulled down. 0.4V 2.4V when VIN3.0V, 0.4V 1.6V when VIN<3.0V applied, current consumption increases. apply voltage. When power used, connect pin.
power provided with hysteresis.
Power
Operation Stop
Output voltage Setting value
ON/OFF
Figure
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Electric Volume
S-8330/31 series incorporates electric volume with 8-bit shift register 8-bit latch. output voltage variable width output voltage held data transmission mode because data read shift register fetched into latch unshyncronized strobe input. Figure shows block diagram timing charts
VDIN VCLK 8-bit Shift Register
VDIN
(MSB)
(LSB)
RESET VSTRB 8-bit Latch VCLK
VOUT Electric Volume
VSTRB
Reset
Hold
Read
Hold
VOUT
Min. value
Setting value
Figure Block Diagram Timing
VDIN: Inputs data electric volume. "Data input "H"level; "Data input "Low" level. VCLK: Inputs clock electric volume. Fetches data VDIN into shift register rising edge clocks. When clocks over bits input, read data shifted succession each clock, data corresponding bits which input lastly valid. VSTRB: Inputs strobe signal. contents shift register latched turning strobe signal When data fetched into latch directly transmitted electric volume, output voltage changes. Data latch held turning strobe signal
Output Voltage
electric volume 8-bit resolution.
±1/2LSB (±23.5mV) ±2LSB (±93.8mV)
error linearity exceed ±1/2LSB (±23.5 only before after data changeover 127128 Figure error linearity corresponds bits (±93.8 when used variable range. application where variable range output voltage less, possible with high linearity accuracy with (0111111110000000) (see
±1/2LSB
appropriate product selection. example, want change output voltage within
Electric Volume Data (DEC)
range from select S8330A24FS within range 0127 (0000000001111111).
Figure Linearity Accuracy
high linearity accuracy (within±1/2LSB) obtained.
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
contents register must reset because they uncertain when powering power level step-up operation stops, contents register held inside electric volume applying voltage more between VSS. Data write reset operation register also available under this state. register reset setting VCLK toHand VSTRB output voltage minimum value. Power under state where power being "L." Next, VCLK toHand VSTRB reset contents register. Then, start step-up operation under state where power being [Note]If start step-up operation without resetting contents register after powering maximum voltage output VOUT, connected device instrument broken damaged. recommended connect pull down resistor power problem occur maximum output voltage.
Recommended Selection Series Products External Parts
Select Series Products S-8330/31 Series comes three types depending upon switching transistor attachment method (internal external) oscillating frequency. shown Figure respective output current targets differ ensure high efficiency within respective output current range. Select appropriate series which meets your output current
requirements (see reference data output current efficiency characteristics).
S-8331A Series: switching transistor externally attached oscillating frequency (typ.). target
output current more. High output voltage more available only attaching simple external circuit S-8331A Series (see S-8330 Series application circuit shown Figure 17).
S-8330A Series: switching transistor built oscillating frequency (typ.).
higher than that S-8330B Series. response characteristics.
target
output current ranging from oscillating frequency S-8330A Series This minimizes ripple ensures excellent transitory
S-8330B Series: switching transistor built oscillating frequency (typ.).
target output
current less. self current consumption S-8330B Series less than that S-8330A Series. This ensures high efficiency output current about less.
switch transistor built
switch transitor externally attached
Output Voltage S-8330B (f=50kHz) S-8330A (f=180kHz) S-8331 (f=180kHz)
10mA Output Current
100mA
Figure S-8330/8331 Series Depending Upon Output Current Inductor inductance value greatly affects IOUT efficiency. Figure shows dependency IOUT, S-8330A S-8330B "L."
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
S-8330A
LQH4N VOUT=18V, VIN=5.0V IOUT IOUT
S-8330B
LQH4N VOUT=18V, VIN=5.0V
IOUT
IOUT
value (µH)
value (µH)
Recommended Range
Recommended Range
Figure Dependency Inductance Maximum Output Current Efficiency
smaller value larger peak current IPK. IOUT reaches maximum value certain value When decreasing value further, switching transistor falls short current drive ability IOUT decreases; when increasing value loss switching transistor decreases efficiency reaches maximum certain value when increasing value loss series resistor coils increases. This worsens efficiency. recommended value 100µH S-8330A 220µH S-8330B, respectively. Determine value referring reference data because maximum output current actually differs depending upon input voltage. attention allowable current inductor when selecting appropriate inductor. current exceeding this allowable current flows into inductor, magnetic saturation occurs inductor. This lead serious drop efficiency damage exessive current. Select appropriate inductor that does exceed this allowable current. Current non-continuous mode represented following equation.
IPK=
IOUT (VOUT+VD-VIN) fOSCOL
(17)
where fOSC oscillating frequency. approximately example, when want power source input voltage output voltage VOUT load current IOUT=5 S-8330A30FS responds your requirements because fOSC=180 kHz. When value 47µH, IPK=174mA found shown equation (17). result, select inductor which value 47µH allowable current more.
limitation relating maximum value lies itself. Always current less. Diode Always diode which meets following conditions.
forward voltage: switching speed: Reverse direction voltage: Rating current:
VF<0.3V max. VOUT+VF more more.
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Capacitor (CIN, COUT)
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Capacitor (CIN) input side improves efficiency reducing power impedance stabilizing input current. Select avalue (CIN) depending upon impedance power supply used. standard capacitance approximately 10µF. Select capacitor (COUT) output side with small (Electric Series Resistance) large capacitance stabilize ripple voltage. standard capacitance approximately particularly recommended tantalum electrolytic capacitor with excellent temperature leakage current characteristics. Externally-attached transistors (S-8331 Series) output current increased externally attaching transistor S-8331 Series. bipolar (NPN) type enhancement (Nch) type transistor used external transistor. Bipolar type Figure shows circuit example using 2SD1624 manufactured SANYO bipolar transistor (NPN). drive ability increase output current determined values bipolar transistor. peripheral circuit example transistor shown Figure
2200pF S-8331 Figure External Transistor Peripheral Circuit
recommended select value approximately Find necessary base current from bipolar transistor using Ib=IPK/hFE,
|IEXTH| select small value Small value increase output current, worsen efficiency. Also current
VIN-0.7 flow pulse voltage drop wiring resistor. find optimum value with experiments. Attaching speed-up capacitor resistor reduces switching loss increases efficiency. Value
Enhancement type Figure shows circuit example using 2SK2159 manufactured transistor (Nch). power FET. S-8331 series drive with approx.1000 gate capacitance. reisistor depends upon difference between voltage input voltage threshold voltage thereby affects output amperage efficiency. gate voltage current supplied input voltage VIN. attention input voltage low. Also note that will function threshold voltage higher than input voltage.
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
2SJ356 2SK2159 ZD:15V
VOUT RESET ON/OFF
Figure Circuit Example Using 2SK2159
Standard Circuits
S-8330 Series
CONT VOUT VDIN Controller VCLK VSTRB
Oscillator
VREF
RESET
ON/OFF
Figure S-8330 Series
S-8331 Series
VOUT Controller External VDIN VCLK VSTRB
Oscillator
VREF
RESET
ON/OFF
Figure S-8331 Series
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Design Precautions
Mount capacitors, diodes, coils other components near possible Inherent ripple voltage spike noise generate switching ragulator. Because greatly depends upon coils capacitors use, check using actually-mounted model. Make sure that loss switching transistor (particularly high temperatures) does exceed allowable power dissipation.
Power Dissipation
(mW)
Ambient Temperature (°C)
Figure 8-Pin SSOP Power Dissipation (before mounting)
Configure parts components that line (indicated bold line shown Figure becomes short much possible. resistor and/or inductance component stays line, potential varies depending upon switching current.
VDIN VCLK VSTRB ON/OFF
CONT
VOUT
S-8330 Series
Figure S-8330 Series Application Circuit
When switching output voltage electric volume, soft start does function. attention overshoot occuring when increasing output voltage with large width (refer Output Voltage Changeover shown transitory response characteristics).
Seiko Instruments Inc. shall resposible patent infringement products including S8330/8331 Series connection with method using S-8330/8331 Series such products, product specifications country destination thereof.
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Application Circuits
Large Size Panel Drive Power Supply This circuit example drive large size panel V/20 power (5V±10%).
Tr.2 MA789 ZD:15V
180k Tr.3
VOUT VDIN
Tr.1: 2SD1624
S-8331A30FS VCLK
VSTRB ON/OFF
600k
F93/
2200pF
Figure Large Size Panel Drive Power Supply This output voltage step-up circuit using S-8331 Series. more output voltage, i.e., maximum voltage S-8330/8331 Series, available dividing output voltage external resistors feeding back VOUT pin. S-8331 Series internal impedance VOUT varies switching electric volume. Therefore, small singal transistor (Tr. needed between external voltage dividing resistor VOUT convert impedance. output voltage represented equation (18). Output voltage (VOUT+VBE) (18) VOUT S-8331 VOUT setting voltage Voltage between base emitter attention following precautions when using this Make sure that switching transistor (Tr.1) Schottky diode (SD) have sufficient resistance against high output voltage use. example, 2SD1624 manufactured Sanyo MA789 manufactured Matsushita used this circuit example switching transistor Schottky diode, respectively. When stopping step-up operation from step-up operation state using power pin, VOUT short-circuited transistor. Because this, output voltage temporarily added area between collector emitter transistor (Tr. Always small signal transistor which sufficient enough withstand high output voltage (Tr. output voltage fails stabilize when output current falls short less. this case, capacitor between output line VOUT pin. recommended capacitance capacitor approx. 0.01uF. Select best capacitance after checking under actual operation conditions. Medium Size Panel Drive Power Supply Voltage suitable smart addressing (SA) multiple line addressing drive generates from V-power supply. following circuit example characteristics, targeted positive voltage approx. +15V/500µA negative voltage approx. -9V/500µA.
MA720 VDIN VOUT=15V /10µ VCLK VSTRB S-8330B CONT ON/OFF VOUT
100µH side
Sumida/
+VOUT +15V
side
/10µ
/10µ -VOUT
CEE93
MA720
Figure Medium Size Panel Drive Power Supply
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Output Current Output voltage characteristics (Output Current Increase) VOUT=+15V 15.4
Output Current Output Voltage Characteristics (Output Current Increase) VOUT=-9V -8.6
15.2
-8.8
Output Vol. 15.0 VOUT 14.8
VIN=2.8V VIN=3.8V VIN=5.0V
Output Vol. VOUT -9.0 -9.2
VIN=2.8V VIN=3.8V VIN=5.0V
14.6 0.01
-9.4 0.01
Output Current IOUT (mA)
Output Current IOUT (mA)
Output Current Efficiency Characteristics (Output Current Increase) Efficiency 0.01
VIN=2.8V VIN=3.8V VIN=5.0V
Output Current IOUT (mA)
This circuit stablilizes positive output voltage +VOUT S-8330B Series. negative output voltage -VOUT determined stabilized wiring ratio second third sides transducer manufactured Sumida (CEE93 6375-002 non-gap type) when output current positive side same that negative side. Also this circuit targeted applications load. product with switching frequency improves efficiency load approx. 500mA. attention following precautions when using Generally, allowable current level thin transducer (CEE93 equivalent) lower than that thin coil (CD54 equivalent). Make sure that current flowing into transducer under specified operational conditions does exceed allowable current. example, load current larger than above circuit, magnetic saturation occurs damaged worst. When using external gap-type transducer, stability negative output voltage worsen.
external parts, contact Sumida Electric Co., Ltd. Technical Sales Support Center 3-3-6, Nihonbashi Ningyo-cho, Chuo-ku, Tokyo, 103-8589 TEL:03-3667-3320 FAX:03-3667-3409 comprehensive inquiry, consult with Components Sales Dept. TEL:043-211-1192 (Direct) FAX:043-211-8032
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STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Temperature Characteristics
ISS1,ISS2 Temp S-8330A ISS1:VIN =2V,VOUT=8V ISS2:VIN =5V,VOUT=30V ISS1 (µA) ISSS Temp S-8330A 0.10 0.08 ISSS (µA) 0.06 0.04
VIN=9V
ISS1,ISS2 Temp S-8331A ISS1:VIN =2V,VOUT=8V ISS2:VIN =5V,VOUT=30V ISS1 (µA) ISSS Temp S-8331A 0.10 0.08 ISSS (µA) 0.06 0.04 0.02
0.02 0.00 (°C) ISWQ Temp S-8330A/B 0.10 0.08 ISWQ (µA) 0.06 0.04 0.02 0.00 (°C)
VIN=2,5,9V VIN=5V VIN=2V
0.00 (°C) MaxDuty Temp S-8330A/31A MaxDuty
VIN=9V VIN=2V VIN=5V
VOUT=18V
(°C)
Power Supply Dependency Characteristics
FOSC S-8330A/31A FOSC (kHz)
Ta=85 Ta=25 Ta=-40
S-8330A/B (mA)
VOUT=18V
Ta=-40 Ta=25 Ta=85
Seiko Instruments Inc.
IEXTH S-8331A IEXTH (mA)
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
IEXTL S-8331A IEXTL (mA) S-8330A/B/31A 0.90 0.80
Ta=85 Ta=25 Ta=-40 Ta=-40 Ta=25 Ta=85
Ta=-40 Ta=25 Ta=85
Ta=-40 Ta=25 Ta=85
VSH1,2 S-8330A/B/31A 1.60 1.40 VSH1,2 1.20 1.00 0.80 0.60
0.70 0.60 0.50 0.40
VSHC1,2 S-8330A/B/31A 1.60
Ta=85
VSHL S-8330A/B/31A 0.90 0.80
Ta=25 Ta=-40 Ta=-40 Ta=25 Ta=85
1.40 VSHC1,2 1.20 1.00 0.80 0.60 VSHL
0.70 0.60 0.50 0.40
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Transitory Response Characteristics
Powering (VIN: OV5.OV)
S-8330A30 (Light Load IOUT=1mA) Input Vol. (2.5V/div) Output Vol. (5V/div) (1msec/div)
S-8331A30 (Light LoadIOUT=1mA) Input Vol. (2.5V/div) Output Vol. (5V/div) (1msec/div) VOUT=18V
OUT=18V
S-8330A30 (Heavy Load IOUT=1mA) Input Vol. (2.5V/div) Output Vol. (5V/div) (1msec/div)
S-8331A30 (Heavy LoadIOUT=20mA) Input Vol. (2.5V/div)
VOUT=18V
VOUT=18V
Output Vol. (5V/div) (1msec/div)
2.Power Response (Von/off=05.OV)
S-8330A30 (Light Load IOUT=1mA) Power Voltage Output Vol. (5V/div) =5V,VOUT=18V S-8330A30 (Heavy Load IOUT=10mA) Power Voltage Output Vol. (5V/div) =5V,VOUT=18V
(1msec/div)
S-8331A30 (Light LoadIOUT=1mA)
Power Voltage
(1msec/div)
=5V,VOUT=18V S-8331A30 (Heavy Load OUT=20mA)
Power Voltage
=5V,VOUT=18V
Output Vol. (5V/div)
Output Vol. (5V/div)
(1msec/div)
(1msec/div)
Seiko Instruments Inc.
3.Load Variations
S-8330A30 IOUT:0.01m1mA)
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
VIN=5V,VOUT=18V
S-8330A30 IOUT:1mA0.01mA)
VIN=5V,VOUT=18V
Load Current
Load Current
Output Vol. (50mV/div)
Output Vol. (50mV/div)
(5msec/div) S-8331A30 IOUT:0.01mA1mA) VIN=5V,VOUT=18V S-8331A30 IOUT:1mA0.01mA)
(5msec/div) =5V,VOUT=18V
Load Current
Load Current
Output Vol. (50mV/div)
Output Vol. (50mV/div)
(5msec/div)
(5msec/div)
Power Supply Variations
S-8330A30 VIN:2.4V3.5V) IOUT=1mA,VOUT=18V S-8330A30 VIN:3.5V2.4V) IOUT=1mA,VOUT=18V
Input Vol. (0.5V/div)
Input Vol. (0.5V/div)
Output Vol. (50mV/div)
Output Vol. (50mV/div)
(5msec/div) S-8331A30 IN:2.4V3.5V) IOUT=1mA,VOUT=18V S-8331A30 VIN:3.5V2.4V)
(5msec/div) IOUT=1mA,VOUT=18V
Input Vol. (0.5V/div)
Input Vol. (0.5V/div)
Output Vol. (50mV/div)
Output Vol. (50mV/div)
(5msec/div)
(5msec/div)
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Output Voltage Changeover
S-8330A20 (VOUT:8V14V) STRB Vol. VIN=5V, IOUT=1mA S-8330A20 (VOUT:14V8V) STRB Vol.
VIN=5V, IOUT=10mA
Output Vol. (2V/div) (5msec/div) S-8330A30 (VOUT:18V24V) STRB Vol. VIN=5V, IOUT=1mA
Output Vol. (2V/div) (5msec/div) S-8330A30 (VOUT:24V18V) STRB Vol. =5V, IOUT=10mA
Output Vol. (2V/div) (5msec/div)
S-8331A20 OUT:8V 14V) STRB Vol. =5V, IOUT=1mA
Output Vol. (2V/div) (5msec/div)
S-8331A20 OUT:14V8V) STRB Vol. =5V, IOUT=20mA
Output Vol. (2V/div) (5msec/div)
Output Vol. (2V/div) (5msec/div)
S-8331A30 (VOUT:18V24V) STRB Vol.
VIN=5V, IOUT=1mA
S-8331A30 (VOUT:24V18V) STRB Vol.
=5V, IOUT=20mA
Output Vol. (2V/div) (5msec/div)
Output Vol. (2V/div) (5msec/div)
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Reference Data
reference data used properly determine best external parts. Tables list characteristic data parts recommended respond wide variety applications. Table Recommended Parts (10) (11) (12) (13) Product S-8330A20 S-8330A30 S-8330A20 S-8330A30 S-8330B30 S-8330A20 S-8330A30 S-8330B30 VOUT model CD54 LQH4N CD54 LQH4N Value 47µH 22µH 100µH 100µH 47µH 100µH Diode MA720 COUT Ripple voltage Remark Output current, Efficiency
Table Recommended Parts Part Product CD54 Inductor LQH4N Diode Output capacitor External transistor MA720 2SD1624 Manufacturer Sumida Electric Murata Mfg. Matsushita Nichicon Sanyo Electric Value 22µH 47µH 100µH 22µH 47µH 100µH 220µH
resistor
Max. 1.11A 0.72A 0.52A 0.32A 0.22A 0.16A 0.11A
Diameter 5.8mm 4.5mm
Height 4.5mm 2.6mm
0.18 0.37 0.70 0.94
Forward current (VF=0.55
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
S-8330A20 (CD54:47µH)
Output Current Output Voltage Characteristics (Output Current Increase)
VOUT=8V
S-8330A20 (CD54:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
VOUT=8V
Efficiency
Output Vol.
VIN=2V VIN=5V VIN=7V Output Current IOUT(mA) 1000 Output Current IOUT(mA) 1000 VIN=2V VIN=5V VIN=7V
S-8330A30 (CD54:47µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A30 (CD54:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
18.4
VOUT=18V
VOUT=18V
18.2
Output Vol. Efficiency
18.0 VIN=2V VIN=5V VIN=9V 17.6 1000
17.8
VIN=2V Output Current IOUT(mA) 1000 VIN=5V VIN=9V
Output Current IOUT(mA)
S-8330A30 (CD54:47µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A30 (CD54:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
30.4
VOUT=30V
VOUT=30V
30.2
Output Vol.
30.0 VIN=2V VIN=5V VIN=9V 29.6 Output Current IOUT(mA) 1000
Efficiency
29.8
VIN=2V Output Current IOUT(mA) 1000 VIN=5V VIN=9V
S-8330A20 (LQH4N:47µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A20 (LQH4N:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
VOUT=8V
Efficiency
VOUT=8V
Output Vol.
VIN=2V VIN=5V VIN=7V 0.01 Output Current IOUT(mA)
VIN=2V 0.01 VIN=5V VIN=7V Output Current IOUT(mA)
Seiko Instruments Inc.
S-8330A30 (LQH4N:47µH)
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
S-8330A30 (LQH4N:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
Output Current Output Voltage Characteristics (Output Current Increase)
18.4
OUT=18V
Efficiency
OUT=18V
18.2
Output Vol.
18.0
VIN=2V 0.01 VIN=5V VIN=9V
17.8
VIN=2V VIN=5V VIN=9V
17.6 0.01
Output Current IOUT(mA)
Output Current IOUT(mA)
S-8330A30 (LQH4N:47µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A30 (LQH4N:47µH)
Output Current Efficiency Characteristics (Output Current Increase)
30.4
VOUT=30V
VOUT=30V
30.2
Output Vol.
30.0 VIN=2V VIN=5V VIN=9V 29.6 0.01 Output Current IOUT(mA)
Efficiency
29.8
VIN=2V 0.01 VIN=5V VIN=9V Output Current IOUT(mA)
S-8330A30 (LQH4N:22µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A30 (LQH4N:22µH)
Output Current Efficiency Characteristics (Output Current Increase)
18.4
OUT=18V
VOUT=18V
18.2
Output Vol.
18.0 VIN=2V VIN=5V VIN=9V 17.6 0.01 Output Current IOUT(mA)
Efficiency
17.8
VIN=2V 0.01 VIN=5V VIN=9V Output Current IOUT(mA)
S-8330A30 (LQH4N:100µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330A30 (LQH4N:100µH)
Output Current Efficiency Characteristics (Output Current Increase)
18.4
VOUT=18V
Efficiency
VOUT=18V
18.2
Output Vol.
18.0
VIN=2V 0.01 VIN=5V VIN=9V
17.8
VIN=2V VIN=5V VIN=9V
17.6 0.01
Output Current IOUT(mA)
Output Current IOUT(mA)
Seiko Instruments Inc.
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
S-8330B30 (LQH4N:100µH)
Output Current Output Voltage Characteristics (Output Current Increase)
S-8330B30 (LQH4N:100µH)
Output Current Efficiency Characteristics (Output Current Increase)
18.4
VOUT=18V
Efficiency
VOUT=18V
18.2
Output Vol.
18.0
VIN=2V 0.01 VIN=5V VIN=9V
17.8
VIN=2V VIN=5V VIN=9V
17.6 0.01
Output Current IOUT(mA)
Output Current IOUT(mA)
(10)
S-8330A20 (CD54:47µH)
Output Current Ripple Voltage Characteristics (Output Current Increase)
VOUT=8V
VIN=2V
Ripple Voltage (mV)
VIN=5V VIN=7V
0.01
Output Current IOUT(mA)
S-8330A30 (CD54:47µH)
Output Current Ripple Voltage Characteristics (Output Current Increase)
(11)
VIN=2V
Ripple Voltage (mV)
OUT=18V
VIN=5V VIN=9V
0.01
Output Current IOUT(mA)
(12)
S-8330A30 (CD54:47µH)
Output Current Ripple Voltage Characteristics (Output Current Increase)
VIN=2V
Ripple Voltage (mV)
VOUT=30V
VIN=5V VIN=9V
0.01
Output Current IOUT(mA)
Seiko Instruments Inc.
(13)
S-8330B30 (LHQ4N:100µH)
STEP-UP SWITCHING REGULATOR BIAS SUPPLY S-8330/8331 Series
Output Current Ripple Voltage Characteristics (Output Current Increase)
VIN=2V
Ripple Voltage (mV)
OUT=18V
VIN=5V VIN=9V
0.01
Output Current IOUT(mA)
Seiko Instruments Inc.
8-pin SSOP
Dimensions
3.1±0.3
FS008-A 990531
Unit:mm
0.22±0.1 0.65
Taping Specifications
0.05
Reel Specifications
reel holds 2000 ICs.
13.5
1.55 0.05
0.05
1.55 0.05
(4.0)
R135
Winding core
Markings
8-pin SSOP
8330
990603
(10)
information described herein subject change without notice. Seiko Instruments Inc. responsible problems caused circuits diagrams described herein whose related industrial properties, patents, other rights belong third parties. application circuit examples explain typical applications products, guarantee success specific mass-production design. When products described herein regulated products subject Wassenaar Arrangement other agreements, they exported without authorization from appropriate governmental authority. information described herein other purposes and/or reproduction copying without express permission Seiko Instruments Inc. strictly prohibited. products described herein cannot used part device equipment affecting human body, such exercise equipment, medical equipment, security systems, equipment, apparatus installed airplanes other vehicles, without prior written permission Seiko Instruments Inc. Although Seiko Instruments Inc. exerts greatest possible effort ensure high quality reliability, failure malfunction semiconductor products occur. user these products should therefore give thorough consideration safety design, including redundancy, fire-prevention measures, malfunction prevention, prevent accidents, fires, community damage that ensue.
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