S-8233B Series S-8233B series lithium-ion rechargeable battery pr

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S-8233B Series S-8233B series lithium-ion rechargeable battery pr

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BATTERY PROTECTION 3-SERIAL-CELL PACK
S-8233B Series
S-8233B series lithium-ion rechargeable battery protection incorporating high-accuracy (±25 voltage detection circuits delay circuits. suitable 3-serial-cell lithium-ion battery pack.
Features
Internal high-accuracy voltage detection circuit Over charge detection voltage 3.80 0.025 4.40 0.025 step Over charge release voltage 3.45 0.100 4.40 0.100 step (The over charge release voltage selected within range where difference from over charge detection voltage 0.35 with step) Over discharge detection voltage 2.00 0.08 2.80± 0.08 step Over discharge release voltage 2.00 0.10 to4.00± 0.10 step (The over discharge release voltage selected within range where difference from over discharge detection voltage with step) Over current detection voltage 0.15 ±0.015 ±0.05 step High input-voltage device (absolute maximum rating: Wide operating voltage range: delay time every detection external capacitor. Three over current detection levels (protection short-circuiting) Internal charge/discharge prohibition circuit control terminal function charging batteries from available. current consumption Operation max. (+25°C) Power-down max. (+25°C) Lead-free products
Applications
Lithium-ion rechargeable battery packs
Package
Package Name 16-PIN TSSOP Package FT016-A Drawing Code Tape FT016-A Reel FT016-A
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series Block Diagram
Reference voltage Battery Over charge
Over current delay circuit
Over current detection circuit
Battery Over discharge
Over current1, delay circuit
COVT
Battery Over charge Battery Over charge
Over discharge delay circuit
Control Logic
Over charge delay circuit
Battery Over discharge Reference voltage
Battery Over charge Battery Over charge
Battery Over discharge Reference voltage
Battery Over charge
Floating detection circuit
Figure Remark delay time over current detection fixed internal circuit. delay time cannot changed external capacitor.
Seiko Instruments Inc.
Rev.4.0_00 Product Name Structure
Product name S-8233B
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
direction tape specifications*1 Package name (abbreviation) 16-Pin TSSOP Serial code Assigned from alphabetical order Refer taping specifications. Product name list Table Product name Over charge Over charge Overdischarge Overdischarge Overcurrent Conditioning Parameter detection release detection release voltage detection battery function logic*1 voltage voltage1 charging voltage voltage VIOV1 function S-8233BAFT-TB-G 4.225±0.025 S-8233BCFT-TB-G 4.200±0.025 4.225 2.30±0.08 2.30±0.08 2.80±0.08 2.00±0.08 2.70±0.10 2.70±0.10 3.30±0.10 2.70±0.10 0.20±0.02 0.20±0.02 0.50±0.05 Available Unavailable Available Unavailable normal reverse normal reverse S-8233BBFT-TB-G 4.325±0.025 4.15±0.10 S-8233BDFT-TB-G 4.325±0.025 4.15±0.10
0.25±0.025 Available
input voltage normal condition changed logic. (Please refer "Operation"). Without over charge detection release hysteresis. Remark Please contact marketing department products with detection voltage value other than those specified above.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Configurations
16-Pin TSSOP view
COVT
Table
Name COVT
Description Connects gate discharge control (CMOS output) connect
Connects gate charge control (Nch open-drain output) Detects voltage between VMP(Over current detection pin) Connects capacitor over current detection1delay circuit Connects capacitor over discharge detection delay circuit Connects capacitor over charge detection delay circuit Negative power input, connects negative voltage battery Charge/discharge control signal input Battery conditioning signal output Connects battery negative voltage battery positive voltage Battery conditioning signal output Connects battery negative voltage battery positive voltage Battery conditioning signal output connect
Figure
Positive power input connects battery positive voltage
electrically open. connected VSS.
Absolute Maximum Ratings
Table unless otherwise specified) Item Input voltage between Input terminal voltage Input terminal voltage output terminal voltage output terminal voltage output terminal voltage output terminal voltage output terminal voltage Power dissipation Operating temperature range Storage temperature range Sym. VVMP VCD1 VCD2 VCD3 VDOP VCOP Topr Tstg Applied Pins VC1,VC2,CTL,CCT,CDT, COVT Rating VSS-0.3 VSS+26 VSS-0.3 VCC+0.3 VSS-0.3 VSS+26 VC1-0.3 VCC+0.3 VC2-0.3 VCC+0.3 VSS-0.3 VCC+0.3 VSS-0.3 VCC+0.3 VSS-0.3 VVMP+0.3 +125 Unit
Seiko Instruments Inc.
Rev.4.0_00 Electrical Characteristics
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Table Item Detection voltage Over charge detection voltage Over charge release voltage Over discharge detection voltage Over discharge release voltage Over charge detection voltage Over charge release voltage Over discharge detection voltage Over discharge release voltage Over charge detection voltage Over charge release voltage Over discharge detection voltage Over discharge release voltage Over current detection voltage Over current detection voltage Over current detection voltage Voltage temperature factor Voltage temperature factor Delay time Over charge detection delay time Over charge detection delay time Over charge detection delay time Over discharge detection delay time Over discharge detection delay time Over discharge detection delay time Over current detection delay time Over current detection delay time Over current detection delay time Symbol Condition Min. unless otherwise specified) Measure- MeasureTyp. Max. Unit ment ment condition circuit VCU1 VCD1 VDD1 VDU1 VCU2 VCD2 VDD2 VDU2 VCU3 VCD3 VDD3 VDU3 VIOV1 0.50 0.50 0.90 0.90 VCU1+0.025 VCD1+0.10 VDD1+0.08 VDU1+0.10 VCU2+0.025 VCD2+0.10 VDD2+0.08 VDU2+0.10 VCU3+0.025 VCD3+0.10 VDD3+0.08 VDU3+0.10 0.66 mV/°C mV/°C 0.80 0.80 1.40 1.40
VCU1 3.80 4.40 Adjustment VCU1-0.025 VCD1 3.45 4.40 Adjustment VCD1-0.10 VDD1 2.00 2.80 Adjustment VDD1-0.08 VDU1 2.00 4.00 Adjustment VDU1-0.10 VCU2 3.80 4.40 Adjustment VCU2-0.025 VCD2 3.45 4.40 Adjustment VCD2-0.10 VDD2 2.00 2.80 Adjustment VDD2-0.08 VDU2 2.00 4.00 Adjustment VDU2-0.10 VCU3 3.80 4.40 Adjustment VCU3-0.025 VCD3 3.45 4.40 Adjustment VCD3-0.10 VDD3 2.00 2.80 Adjustment VDD3-0.08 VDU3 2.00 4.00 Adjustment VDU3-0.10 VIOV1 0.15 0.50V Adjustment VIOV2 Reference 0.54 VIOV3 Reference TCOE1 Ta=-20 70°C -1.0 TCOE2 Ta=-20 70°C -0.5 tCU1 tCU2 tCU3 tDD1 tDD2 tDD3 tIOV1 tIOV2 tIOV3 CCCT=0.47 CCCT=0.47 CCCT=0.47 CCDT=0.1 CCDT=0.1 CCDT=0.1 CCOVT=0.1 gate capacitor =2000 -300 -300 -300 0.20 0.20 0.40 0.40
Operating voltage Operating voltage between VDSOP VSS*4 Current consumption Current consumption (during normal IOPE V1=V2=V3=3.5 operation) Current consumption cell ICELL1 V1=V2=V3=3.5 Current consumption cell ICELL2 V1=V2=V3=3.5 Current consumption cell ICELL3 V1=V2=V3=3.5 Current consumption power down IPDN V1=V2=V3=1.5 Internal resistance with battery charging function type Resistance between RVCM V1=V2=V3=3.5 Resistance between RVSM V1=V2=V3=1.5 Internal resistance without battery charging function type. Resistance between RVCM V1=V2=V3=3.5 Resistance between RVSM V1=V2=V3=1.5 Input voltage CTL"H" Input voltage VCTL(H) CTL"L" Input voltage VCTL(L)
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Table
Item Output voltage DOP"H" voltage DOP"L" voltage COP"L" voltage LEAK current CD1"H" voltage CD1"L" voltage CD2"H" voltage CD2"L" voltage CD3"H" voltage CD3"L" voltage battery charging function charging start voltage
Symbol
Condition
Min.
unless otherwise specified) Measure- MeasureTyp. Max. Unit ment ment condition circuit
VSS+0.1 VSS+0.1
VDO(H) VDO(L) VCO(L) ICOL VCD1(H) VCD1(L) VCD2(H) VCD2(L) VCD3(H) VCD3(L) V0CHAR
IOUT=10 IOUT=10 V1=V2=V3=4.5 IOUT=0.1 IOUT=10 IOUT=0.1 IOUT=10 IOUT=0.1 IOUT=10 IOUT=10
VCC-0.5 VCC-0.5 VCC-0.5 VCC-0.5
VC1+0.1 VC2+0.1 VSS+0.1
V1=V2=V3=0
over current detection voltage 0.50 both over current detection voltages 0.54 0.55 VIOV2 VIOV1. Voltage temperature factor indicates over charge detection voltage, over charge release voltage, over discharge detection voltage, over discharge release voltage. Voltage temperature factor indicates over current detection voltage. logic must established operating voltage. This spec applies only battery charging function available type.
Seiko Instruments Inc.
Rev.4.0_00 Measurement Circuits
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Caution Measurement circuit from (15). device's logic "normal"(S-8233BA, S-8233BC) then voltage (V4=0V). device's logic "reverse" (S-8233BB, S-8233BD) then voltage (V4=V1+V2+V3). Measurement Measurement circuit under normal condition. Increase from gradually. voltage when over charge detection voltage (VCU1). Decrease gradually. voltage when over charge release voltage (VCD1). Further decrease voltage when over discharge voltage (VDD1). Increase gradually. voltage when over discharge release voltage (VDU1). Remark: voltage change rate less. Measurement Measurement circuit under normal condition. Increase from gradually. voltage when over charge detection voltage (VCU2). Decrease gradually. voltage when over charge release voltage (VCD2). Further decrease voltage when over discharge voltage (VDD2). Increase gradually. voltage when over discharge release voltage (VDU2). Remark: voltage change rate less. Measurement Measurement circuit under normal condition. Increase from gradually. voltage when over charge detection voltage (VCU3). Decrease gradually. voltage when over charge release voltage (VCD3). Further decrease voltage when over discharge voltage (VDD3). Increase gradually. voltage when over discharge release voltage (VDU3). Remark: voltage change rate less. Measurement Measurement circuit under normal condition. Increase from gradually. voltage when 'H', over current detection voltage (VIOV1). under normal condition. COVT terminal VSS, increase from gradually. voltage when over current detection voltage (VI0V2). under normal condition. COVT terminal VSS, increase gradually from voltage when 'H'and over current detection voltage (VI0V3). Measurement Measurement circuit under normal condition measure current consumption. normal condition current consumption (IOPE), cell current consumption (ICELL2), cell current consumption (ICELL3). under over discharge condition. Current consumption power-down current consumption (IPDN).
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Measurement Measurement circuit 10.5 under normal condition. V5/I5 internal resistance between (RVCM). under over discharge condition. (4.5-V5)/I5 internal resistance between (RVCM). Measurement Measurement circuit OFF, under normal condition. Increase from gradually. voltage when DOP'L' voltage (VD0 (L)). OFF, VIOV2+0.1 under over current condition. Increase from gradually. voltage when DOP'H' voltage (VDO (H)). Measurement Measurement circuit under normal condition. Increase from gradually. voltage when COP'L' voltage (VC0 (L)). Measurement Measurement circuit under normal condition. Increase from immediately (within µs). time after becomes until goes over charge detection delay time (tCU1). under normal condition. Decrease from immediately (within µs). time after becomes until goes over discharge detection delay time (tDD1). (10) Measurement Measurement circuit under normal condition. Increase from immediately (within µs). time after becomes until goes over charge detection delay time (tCU2). under normal condition. Decrease from immediately (within µs). time after becomes until goes over discharge detection delay time (tDD2). (11) Measurement Measurement circuit under normal condition. Increase from immediately (within µs). time after becomes until goes over charge detection delay time (tCU3). under normal condition. Decrease from immediately (within µs). time after becomes until goes over discharge detection delay time (tDD3). (12) Measurement Measurement circuit under normal condition. Increase from 0.55 immediately (within µs). time after becomes 0.55 until goes over current detection delay time (tI0V1). under normal condition. Increase from 0.75 immediately (within µs). time after becomes 0.75 until goes over current detection delay time (tIOV2) inhibit over discharge detection. increase from immediately (within decrease time. time after becomes until goes over current detection delay time (tIOV3).
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
(13) Measurement Measurement circuit OFF, under normal condition. Increase from gradually. voltage when CD1'L' voltage (VCD1(L)) OFF, under normal condition. Increase from gradually. voltage when CD2'L' voltage (VCD2(L)). OFF, under normal condition. Increase from gradually. voltage when CD3'L' voltage (VCD3(L)). OFF, under over charge condition. Increase from gradually. voltage when CD1'H' voltage (VCD1(H)). OFF, under over charge condition. Increase from gradually. voltage when CD2'H' voltage (VCD2(H)). OFF, under over charge condition. Increase from gradually. voltage when CD3'H' voltage (VCD3(H)). (14) Measurement Measurement circuit under over charge condition. current flowing terminal LEAK current (ICOL). (15) Measurement Measurement circuit decrease gradually. voltage when (VSS higher) charge start voltage (V0CHAR). (16) Measurement Measurement circuit Measurement will changed logic! logic "normal" increase gradually. voltage when (VSS higher) (VSS higher) input voltage (VCTL(H)). After that decrease gradually. voltage when (VCC lower) (VCC lower) CTL'L' input voltage (VCTL(L)). logic "reverse" to10.5 decrease gradually. voltage when (VSS higher) (VSS higher) CTL'L' input voltage (VCTL(L)). After that increase gradually. voltage when ='L' (VVMP lower) (VCC lower) CTL'H' input voltage (VCTL(H)).
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Caution Measurement circuit from device's logic "normal"(S-8233BA, S-8233BC) then voltage (V4=0 device's logic "reverse" (S-8233BB, S-8233BD) then voltage (V4=V1+V2+V3).
COVT S-8233B
S-8233B
COVT
Measurement circuit
Measurement circuit
COVT S-8233B
S-8233B
COVT
Measurement circuit Figure (1/2)
Measurement circuit
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
S-8233B
S-8233B 0.47
COVT
COVT
Measurement circuit
Measurement circuit
S-8233B 0.47
S-8233B
COVT
COVT
Measurement circuit
Measurement circuit
S-8233B
S-8233B
COVT
COVT
Measurement circuit Figure (2/2)
Measurement circuit
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series Operation
Remark Refer "Battery Protection Connection Example".
Normal condition This monitors voltages three serially-connected batteries discharge current control charging discharging. voltages three batteries range from over discharge detection voltage (VDD) over charge detection voltage (VCU), current flowing through batteries becomes equal lower than specified value (the terminal voltage equal lower than over current detection voltage charging discharging FETs turn this condition, charging discharging carried freely. This condition called normal condition. this condition, terminals shorted RVCM resistor. Over current condition This provided with three over current detection levels (VIOV1,VIOV2 VIOV3) three over current detection delay time (tIOV1,tIOV2 tIOV3) corresponding each over current detection level. discharging current becomes equal higher than specified value (the terminal voltage equal higher than over current detection voltage) during discharging under normal condition continues over current detection delay time (tIOV) longer, discharging turns stop discharging. This condition called over current condition. terminals shorted RVCM resistor this time. charging turns off. When discharging load connected, terminal voltage equals potential. over current condition returns normal condition when load released impedance between terminals (see Figure connection example) higher. When load released, terminal, which terminal shorted with RVCM resistor, goes back potential. detects that terminal potential returns over current detection voltage (VIOV1) lower over current detection voltage (VIOV2) lower COVT terminal fixed level over current detection inhibited) returns normal condition. Over charge condition battery voltages becomes higher than over charge detection voltage (VCU) during charging under normal condition continues over charge detection delay time (tCU) longer, charging turns stop charging. This condition called over charge condition. level signal output conditioning terminal corresponding battery which exceeds over charge detection voltage until battery becomes equal lower than over charge release voltage (VCD). battery discharged connecting externally. discharging current limited inserting R11, resistors (see Figure connection example). terminals shorted RVCM resistor under over charge condition. over charge condition released cases: battery voltage which exceeded over charge detection voltage (VCU) falls below over charge release voltage (VCD), charging turns normal condition returns. battery voltage which exceeded over charge detection voltage (VCU) equal higher than over charge release voltage (VCD), charger removed, load placed, discharging starts, charging turns normal condition returns. release mechanism follows: discharge current flows through internal parasitic diode charging immediately after load installed discharging starts, terminal voltage decreases about from terminal voltage momentarily. detects this voltage (over current detection voltage higher), releases over charge condition returns normal condition. Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Over discharge condition battery voltages falls below over discharge detection voltage (VDD) during discharging under normal condition continues over discharge detection delay time (tDD) longer, discharging turns discharging stops. This condition called over discharge condition. When discharging turns off, terminal voltage becomes equal voltage IC's current consumption falls below power-down current consumption (IPDN). This condition called power-down condition. terminals shorted RVSM resistor under over discharge power-down conditions. power-down condition canceled when charger connected voltage between higher (over current detection voltage When battery voltages becomes equal higher than over discharge release voltage (VDU) this condition, over discharge condition changes normal condition. Delay circuits over charge detection delay time (tCU1 tCU3), over discharge detection delay time (tDD1 tDD3), over current detection delay time (tI0V1) changed with external capacitors C6). delay times calculated following equations: Min. tCU[S] =Delay factor 1.07, tDD[S] =Delay factor 0.20, tIOV1[S]=Delay factor 0.10, Typ. 2.13, 0.40, 0.20, Max. [uF] [uF] [uF]
Caution: delay time over current detection fixed internal circuit. delay time cannot changed external capacitor. terminal logic "normal"]<S-8233BA, S-8233BC> terminal floated under normal condition, pulled potential both charging discharging FETs turn inhibit charging discharging. Both charging discharging also inhibited applying terminal terminal externally. this time, terminals shorted RVCM resistor. When terminal becomes equal potential, charging discharging enabled back their appropriate conditions battery voltages. logic is"reverse"]<S-8233BB, S-8233BD> When terminal becomes equal potential, both charging discharging FETs turn inhibit charging discharging. terminal floated under normal condition, charging discharging enabled back their appropriate conditions battery voltages.
Caution Please note unexpected behavior might occur when electrical potential difference between ('L' level) generated through external filter (RVSS CVSS) result input voltage fluctuations.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Table.5 Output voltage current consumption terminal voltage.
Statements terminal voltage logic "normal" (Charge control) S-8233BA (Discharge control) S-8233BC Current consumption logic "reverse" S-8233BB S-8233BD Current consumption Normal &Over voltage state High Floated High High Typ.20 Comply with battery voltage Comply with battery voltage Typ.20 Comply with battery voltage Comply with battery voltage Typ.20 High High Typ.20
Power down mode (Without charger) High Floated High Unknown High High High Typ. Typ. Unknown High Typ. High High Typ. Unknown High Unknown
battery charging function This function used recharge three serially-connected batteries after they self-discharge When charging start voltage (V0CHAR) higher applied between connecting charger, charging gate fixed potential. When voltage between gate sources charging becomes equal higher than turn-on voltage charger voltage, charging turns start charging. this time, discharging turns charging current flows through internal parasitic diode discharging FET. battery voltages become equal higher than over discharge release voltage (VDU), normal condition returns. Caution: products without battery charging function, resistance between between lower than products with battery charging function. causes that over charge detection voltage increases drop voltage (see Figure connection example) with sink current VMP. output undefined below VCC-VSS voltage products without battery charging function. Voltage temperature factor Voltage temperature factor indicates over charge detection voltage, over charge release voltage, over discharge detection voltage, over discharge release voltage. Voltage temperature factor indicates over current detection voltage. Voltage temperature factors expressed oblique line parts Figure
Voltage temperature factor over charge detection voltage
+0.1 mV/°C
VCU25
VCU25 over charge detection voltage 25°C
-0.1 mV/°C
Figure
[°C]
Seiko Instruments Inc.
Rev.4.0_00 Operation Timing Charts
Over charge detection
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
battery Battery voltage terminal
battery
battery
terminal VCHA VIOV1 Charger connected Load connected Mode
Hi-z
Hi-z
Hi-z
Hi-z
terminal
Delay
Delay
Delay
Delay
Delay
Normal mode, Over charge mode, Over discharge mode, Over current mode Remark charger assumed charge with constant current. VCHA indicates open voltage charger.
Figure Over discharge detection
battery Battery voltage terminal terminal VCHA VIOV1 Charger connected Load connected Mode
battery
battery
Hi-z
terminal
Delay
Delay
Delay
Delay
Delay
Normal mode,
Over charge mode,
Over discharge mode,
Over current mode
Remark charger assumed charge with constant current. VCHA indicates open voltage charger.
Figure Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Over current detection
batteries Battery voltage terminal terminal terminal VIOV1 VIOV2 VIOV3 Charger connected Load connected Mode
Hi-z
Hi-z
Hi-z
Hi-z
Delay tIOV1
Delay tIOV2
Delay tIOV3 Inhibit charging discharging terminal terminal
logic "reverse" will exchanged VSS.
Normal mode,
Over charge mode, Over discharge mode,
Over current mode
Figure
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Battery Protection Connection Example
FET-A FET-B open drain
logic "normal" (S-8233BA) VSS(GND): Normal operation Floating VCC: Inhibit charging discharging. logic "reverse" (S-8233BB) Floating VCC: Normal operation VSS(GND): Inhibit charging discharging.
FET1 Battery
Over charge delay time setting
FET2 Battery
S-8233B series
FET3 Battery
Over discharge delay time setting FET-C
High: Inhibit over discharge detection.
COVT
Over current delay time setting
Figure [Description Figure R11, R12, used adjust battery conditioning current. conditioning current during over charge detection given (over charge detection voltage)/R resistance). disable conditioning function, open CD1, CD2, CD3. over charge detection delay time (tCU1 tCU3), over discharge detection delay time (tDD1 tDD3), over current detection delay time (tI0V1) changed with external capacitors C6). electrical characteristics. pull-up resistor that turns FET-B when terminal opened. Connect resistor. used protect charger connected reverse. Connect resistor. capacitor absent, rush current occurs when capacitive load connected enters over current mode. must connected prevent capacitor connected, enter over discharge condition variations battery voltage when over current occurs. this case, charger must connected return normal condition. prevent this, connect least 0.01 capacitor leak current flows between delay capacitor connection terminal (CCT, CDT, COVT) VSS, delay time increases error occurs. leak current must less. Over discharge detection disabled using FET-C. FET-C leak must less. over discharge inhibited using this FET, current consumption does fall below even when battery voltage drops enters over discharge detection mode. must less. protection when terminal voltage higher than voltage. Connect resistor. terminal voltage never greater than voltage (ex. connect VSS), without resistance allowed
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Caution above constants changed without notice. electrostatic discharge 2000 higher applied S-8233B series with human body model, unnecessary. been confirmed whether operation normal circuits other than above example connection. addition, example connection shown above constant guarantee proper operation. Perform through evaluation using actual application constant.
Precautions
charger connected over discharge condition battery voltages becomes equal higher than over charge release voltage (VCU) before battery voltage which below over discharge detection voltage (VDD) becomes equal higher than over discharge release voltage (VDU), over discharge over charge conditions entered charging discharging FETs turn off. Both charging discharging disabled. battery voltage which higher than over charge detection voltage (VCU) falls over charge release voltage (VCD) internal discharging, charging turns charger detached over charge over discharge condition, over charge condition released, over discharge condition remains. charger connected again, battery condition monitored after that. charging turns after over charge detection delay time, over charge over discharge conditions entered. battery voltages equal lower than over discharge release voltage (VDU) when they connected first time, normal condition entered. terminal voltage made equal higher than voltage charger connected), normal condition entered. terminal floats power-down mode, pulled charging inhibited. However, over discharge condition becomes effective. that time, current consumption would increase because terminal affected noise. charger connected, terminal pulled charging discharging inhibited immediately. apply electrostatic discharge this that exceeds performance ratings built-in electrostatic protection circuit. claims responsibility disputes arising connection with infringement products including this patents owned third party.
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Characteristics (typical characteristics)
Detection voltage temperature characteristics
Overcharge detection voltage temperature
4.35 VCU=4.25[V]
Overcharge release voltage temperature
4.20 VCD=4.10[V]
4.25
4.10
4.15
Ta(°C)
4.00
Ta(°C)
Overdischarge detection voltage temperature
2.45 VDD=2.35[V]
Overdischarge release voltage temperature
2.95 VDU=2.85[V]
2.35
2.85
2.25 Ta(°C)
2.75
Ta(°C)
Overcurrent1 detection voltage temperature
0.35 VIOV1 VIOV1=0.3
Overcurrent2 detection voltage temperature
0.65 VIOV2 VIOV2=0.6
0.30
0.60
0.25 Ta(°C)
0.55 Ta(°C)
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAL-CELL PACK S-8233B Series
Current consumption temperature characteristics
Current consumption temperature normal mode
IOPE (uA) VCC=10.5
Current consumption temperature power-down mode
IPDN (nA) VCC=4.5
Ta(°C)
Ta(°C)
Delay time temperature characteristics
Overcharge detection time temperature
C=0.47[uF] VCC=11.5
Overdischarge detection time temperature
(ms) C=0.1[uF] VCC=8.5
Ta(°C)
Ta(°C)
Overcurrent1 detection time temperature
tIOV1 (ms) C=0.1[uF] VCC=10.5
Overcurrent2 detection time temperature
tIOV2 (ms) VCC=10.5
Ta(°C)
Ta(°C)
Seiko Instruments Inc.
BATTERY PROTECTION 3-SERIAl-CELL PACK S-8233B Series
Overcurrent3 (load short) detection time temperature
0.40 VCC=6.0
tIOV3 (ms)
0.25
0.10
Ta(°C)
Delay time power supply voltage
Overcurrent3 (load short) detection time power supply voltage
Ta=25[°C]
tIOV3 (ms)
Caution Please design applications S-8233B Series with safety mind.
Seiko Instruments Inc.
5.1±0.2
0.17±0.05
0.65
0.22±0.08
FT016-A-P-SD-1.1
TITLE SCALE UNIT
TSSOP16-A-PKG Dimensions FT016-A-P-SD-1.1
Seiko Instruments Inc.
+0.1
4.0±0.1 2.0±0.1
0.3±0.05
8.0±0.1 (7.2) 4.2±0.2 1.5±0.1
-0.2
+0.4
Feed direction
FT016-A-C-SD-1.1
TITLE SCALE UNIT
TSSOP16-A-Carrier Tape FT016-A-C-SD-1.1
Seiko Instruments Inc.
21.4±1.0
17.4±1.0
17.4 -1.5
+2.0
Enlarged drawing central part 2.0±0.5
FT016-A-R-SD-1.1
TITLE SCALE UNIT
TSSOP16-A- Reel FT016-A-R-SD-1.1
QTY. 2,000
Seiko Instruments Inc.
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.

S-8233B Series S-8233B series lithium-ion rechargeable battery pr

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