AZ34063A monolithic switching regulator control circuit which contains
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Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER General Description
AZ34063A monolithic switching regulator control circuit which contains primary functions required DC-DC converters. This device consists internal temperature compensated reference, voltage comparator, controlled duty cycle oscillator with active current limit circuit, driver high current output switch. AZ34063A specifically designed general DC-DC converter used Step-Down, Step-Up Voltage-Inverting applications with minimum number external components. AZ34063A available packages: SOIC-8 DIP-8.
AZ34063A
Operation from 3.0V Input Standby Current Current Limiting Output Switch Current 1.5A Output Voltage Adjustable Operation Frequency 180KHz Precision Reference
Applications
Battery Chargers ADSL Modems Hubs Negative Voltage Power Supplies
SOIC-8
DIP-8
Figure Package Types AZ34063A
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Configuration
Package (DIP-8/SOIC-8)
Switch Collector Switch Emitter Timing Capacitor Driver Collector Sense Comparator Inverting Input
AZ34063A
View
Figure Configuration AZ34063A
Functional Block Diagram
Driver Collector
Switch Collector
Sense
Switch Emitter
Timing Capacitor
1.25V Reference Regulator
Comparator Inverting Input
Figure Functional Block Diagram AZ34063A
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Description
Number Name Switch Collector Switch Emitter Timing Capacitor Comparator Inverting Input Sense Driver Collector Function Internal switch transistor collector Internal switch transistor emitter Timing Capacitor control switching frequency Ground internal circuits Inverting input internal comparator Voltage supply Peak Current Sense Input monitoring voltage drop across external current sense resistor limit peak current through switch Voltage driver collector
AZ34063A
Ordering Information
AZ34063A
Lead Free Blank: Lead Tape Reel Blank: Tube
Circuit Type Package SOIC-8 DIP-8
Package
Temperature Range 85oC 85oC
Part Number Lead AZ34063AM AZ34063AMTR AZ34063AP Lead Free AZ34063AM-E1 AZ34063AMTR-E1 AZ34063AP-E1
Marking Lead 34063AM 34063AM AZ34063AP Lead Free 34063AM-E1 34063AM-E1 AZ34063AP-E1
Packing Type Tube Tape Reel Tube
SOIC-8 DIP-8
Semiconductor's Pb-free products, designated with "E1" suffix part number, RoHS compliant.
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Absolute Maximum Ratings (Note
Parameter Power Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage (VPIN 1=40V) Switch Collector Emitter Voltage Driver Collector Voltage Driver Collector Current (Note Switch Current Power Dissipation (TA=25 Thermal Resistance Operating Junction Temperature Lead Temperature (Soldering, 10s) Storage Temperature Range (Human body model) DIP-8 SOIC-8 DIP-8 SOIC-8 Symbol VC(switch) VE(switch) VCE(switch) VC(driver) IC(driver) TLEAD TSTG Value -0.3 1.25 2000 Unit
AZ34063A
Note Stresses greater than those listed under "Absolute Maximum Ratings" cause permanent damage device. These stress ratings only, functional operation device these other conditions beyond those indicated under "Recommended Operating Conditions" implied. Exposure "Absolute Maximum Ratings" extended periods affect device reliability. Note Maximum package power dissipation limits must observed.
Recommended Operating Conditions
Parameter Supply Voltage Ambient Temperature
Symbol
Unit
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Electrical Characteristics
(VCC=5.0 TA=-40 85oC, unless otherwise specified.)
AZ34063A
Parameter OSCILLATOR Frequency Charge Current Discharge Current
Symbol
Conditions
Unit
fOSC ICHG IDISCHG
VPIN5=0V, CT=1.0nF TA=25oC VCC=5.0V 36V, TA=25oC VCC=5.0V 36V, TA=25oC
Discharge Charge Current IDISCHG/ICHG VCC, TA=25oC Ratio Current Limit Sense Voltage OUTPUT SWITCH (Note Saturation Voltage, Dalington Connection Saturation Voltage (Note Current Gain Collector Off-State Current COMPARATOR Threshold Voltage Threshold Voltage Line Regulation Input Bias Current TOTAL DEVICE Supply Current VCC=5.0V 36V, CT=1.0nF, VPIN7=VCC, VPIN5 VTH, VPIN2=GND, other pins open REGLINE TA=25oC TA=-40 85oC VCC=3.0V VIN=0V VCE(sat) VCE(sat) IC(off) ISW=1.0A, Pins connected, Common Emitter ISW=1.0A, RPIN8=82 VCC, Forced =20, Common Emitter ISW=1.0A, VCE=5.0V, TA=25oC VCE=36V VIPK(sense) ICHG=IDISCHG, TA=25oC
0.45 0.01
1.225 1.250 1.275 1.21 1.250 1.29 -400
Note duty cycle pulse technique used during test maintain junction temperature close ambient temperature possible. Note output switch driven into hard saturation (non-Darlington configuration) switch currents 300mA) high driver currents 30mA), take 2.0us come saturation. This condition will shorten time frequencies 30KHz, magnified high temperatures. This condition does occur with Darlington configuration, since output switch cannot saturate. non-Darlington configuration used, following output drive condition recommended:
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Electrical Characteristics (Continued)
Forced output switch:
AZ34063A
output ICdriver 7.0mA*
resistor emitter driver device requires about before output switch conducts.
Typical Performance Characteristics
Ton-off. Output Switch On-Off Time (µs)
1000
TA=25
toff
VOSC. Oscillator Voltage 200mV/DIV
VCC=5.0V VPIN7=VCC VPIN5=GND
VCC=5.0V VPIN7=VCC VPIN2=GND
1,5,8=open CT=1.0nF TA=25oC Time. 10µs/DIV
Oscillator Timing Capacitor (nF)
Figure Output Switch On-Off Time Oscillator Timing Capacitor
Figure Timing Capacitor Waveform
Frequency (KHz)
TA=25
ICC. Supply Current (mA)
VCC=5.0V VPIN7=VCC VPIN5=GND
CT=1.0nF VPIN7=VCC VPIN2=GND
Oscillator Timing Capacitor (nF)
VCC. Supply Voltage
Figure Oscillator Frequency vs.Timing Capacitor
Figure Standard Supply Current Supply Voltage
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Typical Performance Characteristics (Continued) AZ34063A
Saturation Voltage
Saturation Voltage
Darlington Connection
Forced
VCC=5.0V VPIN1,7,8=VCC VPIN3,5=GND TA=25
VCC=5.0V VPIN7=VCC VPIN2,3,5=GND TA=25
-0.1
Emitter Current
Collector Current
Figure Emitter Follower Configuration Output Saturation Voltage Emitter current
Figure Common Emitter Configuration Output Switch Saturation Voltage Collector Current
Current Limit Sense Voltage (mV)
Temperature
Figure Current Limit Sense Voltage Temperature
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Typical Applications
150µH
AZ34063A
0.22
1N5819
100µF
1.25V Reference Regulator
470pF
VOUT 28V/175mA VOUT Optional Filter
AZ34063A
2.2k
Figure Step-Up Converter (Note
Note This typical step-up converter configuration. steady state, resistor divider voltage greater than voltage non-inverting input, which 1.25V determined internal reference, output comparator will low. next swithching period, output switch will conduct output voltage will eventually drop below nominal voltage until divider voltage lower than 1.25V. Then output comparator will high, output switch will allowed conduct. Since VPIN5=VOUT* R2/(R1+R2)=1.25(V), output voltage decided VOUT=1.25 (R1+R2)/R2 (V).
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Typical Applications (Continued) AZ34063A
0.33
1N5819
100µF
1.25V Reference Regulator
VOUT 3.6k 5V/500mA Optional Filter VOUT
AZ34063A
1.2k
Figure Step-Down converter (Note
Note This typical step-down converter configuration. working process steady state similar step-up converter, VPIN5=VOUT*R2/(R1+R2)=1.25 (V), output voltage decided VOUT=1.25* (R1+R2)/R2 (V).
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Typical Applications (Continued) AZ34063A
0.24
4.5-6V
1.25V Reference Regulator
470pF
1N5819
AZ34063A
VOUT
VOUT -12V/100mA Optional Filter 8.2k 1000
Figure Voltage Inverting Converter (Note
Note This typical inverting converter configuration. working process steady state similar step-up converter, difference this situation that voltage non-inverting comparator equal 1.25V+VOUT, then output voltage decided VOUT=-1.25*(R1+R2)/R1 (V).
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Mechanical Dimensions SOIC-8 Unit: mm(inch) AZ34063A
4.700(0.185) 5.100(0.201)
1.350(0.053) 1.750(0.069)
0.320(0.013)
0.675(0.027) 0.725(0.029)
5.800(0.228) 6.200(0.244)
20:1
1.270(0.050)
0.100(0.004) 0.300(0.012) R0.150(0.006)
0.800(0.031)
0.200(0.008)
1.000(0.039) 3.800(0.150) 4.000(0.157)
0.330(0.013) 0.510(0.020)
0.190(0.007) 0.250(0.010) 0.900(0.035)
R0.150(0.006)
0.450(0.017) 0.800(0.031)
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
Data Sheet 1.5A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER Mechanical Dimensions (continued) DIP-8 Unit: mm(inch) AZ34063A
0.700(0.028) 7.620(0.300)TYP 1.524(0.060)
3.710(0.146) 4.310(0.170)
3.200(0.126) 3.600(0.142)
3.000(0.118) 3.600(0.142)
0.510(0.020)MIN
0.254(0.010)TYP 0.360(0.014) 0.560(0.022) 2.540(0.100) 0.130(0.005)MIN
0.204(0.008) 0.360(0.014) 8.200(0.323) 9.400(0.370)
R0.750(0.030) 3.000(0.118) Depth 0.100(0.004) 0.200(0.008) 9.000(0.354) 9.400(0.370)
6.200(0.244) 6.600(0.260)
Sep. 2006 Rev.
Semiconductor Manufacturing Limited
http://www.bcdsemi.com
IMPORTANT NOTICE Semiconductor Manufacturing Limited reserves right make changes without further notice products specifications herein. Semiconductor Manufacturing Limited does assume responsibility products particular purpose, does Semiconductor Manufacturing Limited assume liability arising application products circuits. Semiconductor Manufacturing Limited does convey license under patent rights other rights rights others.
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