PROTECTION IC. S-8243B Datasheet

S-8243B IC. Datasheet pdf. Equivalent

Part S-8243B
Description BATTERY PROTECTION IC
Feature S-8243A/B Series www.ablicinc.com © ABLIC Inc., 2002-2016 BATTERY PROTECTION IC FOR 3-SERIAL OR 4-.
Manufacture ABLIC
Datasheet
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S-8243A/B Series www.ablicinc.com © ABLIC Inc., 2002-2016 S-8243B Datasheet
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S-8243B
S-8243A/B Series
www.ablicinc.com
© ABLIC Inc., 2002-2016
BATTERY PROTECTION IC
FOR 3-SERIAL OR 4-SERIAL CELL PACK
Rev.3.1_01
The S-8243A/B Series is a protection IC for lithium-ion rechargeable battery. The S-8243A Series protects 3-series, the S-8243B
Series protects 4-series cell pack from the overcharge, overdischarge, overcurrent voltages. This IC has a high-accuracy battery
protection circuit and a battery monitor amplifier, and also a voltage regulator which operates the microcomputer or gas gauge IC.
Combining this IC and a microcomputer or a gas gauge IC allows to display the amount of charge remained in a battery.
Features
(1) High-accuracy voltage detection for each cell
Overcharge detection voltage n (n = 1 to 4)
3.9 V to 4.4 V (50 mV step)
Accuracy 25 mV
Overcharge hysteresis voltage n (n = 1 to 4) of overcharge detection
0.10 V to 0.40 V (50 mV step) or 0 V
Accuracy 50 mV
(Overcharge release voltage n (= Overcharge detection voltage n Overcharge hysteresis voltage n) can be
selected within the range 3.8 V to 4.4 V.)
Overdischarge detection voltage n (n = 1 to 4)
2.0 V to 3.0 V (100 mV step)
Accuracy 80 mV
Overdischarge hysteresis voltage n (n = 1 to 4) of overdischarge detection
0.15 V to 0.70 V or 0 V (50 mV step)
Accuracy 100 mV
(Overdischarge release voltage n (= Overdischarge detection voltage n Overdischarge hysteresis voltage n)
can be selected within the range 2.0 V to 3.4 V.)
(2) Three-level overcurrent protection including protection for short-circuiting
Overcurrent detection voltage 1
0.05 V to 0.3 V (50 mV step) Accuracy 25 mV
Overcurrent detection voltage 2
0.5 V
Accuracy 100 mV
Overcurrent detection voltage 3
VDD / 2
Accuracy 15 %
(3) Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by external
capacitors. (Delay times for overcurrent detection 2 and 3 are fixed internally.)
(4) Charge/discharge operation can be controlled through the control pins.
(5) High-accuracy battery monitor amp
(6) Voltage regulator
(7) High-withstand voltage
GAMP = VBATTERY 0.2 1.0%
VOUT = 3.3 V 2.4 % (3 mA max.)
Absolute maximum rating: 26 V
(8) Wide operating voltage range
6 V to 18 V
(9) Wide operating temperature range:
40°C to 85C
(10) Low current consumption
Operation mode
120 A max.
Power down mode
(11) Lead-free, Sn 100%, halogen-free*1
0.1 A max.
*1. Refer to “Product Name Structure” for details.
Applications
Lithium-ion rechargeable battery packs
Lithium polymer rechargeable battery packs
Package
16-Pin TSSOP
1



S-8243B
BATTERY PROTECTION IC FOR 3-SERIAL OR 4-SERIAL CELL PACK
S-8243A/B Series
Block Diagrams
1. S-8243A Series
Rev.3.1_01
VDD
DOP
COP
VMP
VC1
VC2
VC3
Battery protection
DOP,COP,
RVCM,RVSM
control
Voltage
regulator
VREG
660 k
440 k
660 k
Delay
Delay
Delay
Delay
Battery
selection
200 nA
VREG
1.4 M
1.4 M
VREG
1.4 M
1.4 M
VREG
1.4 M
1.4 M
Battery monitor amp
1 M
5 M
5 M
1 M
CTL1
CTL2
CTL3
CTL4
VBATOUT
CCT
VSS
Remark1. Diodes in the figure are parasitic diodes.
2. Numerical values are typical values.
Figure 1
CDT
2





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