PROTECTION IC. S-8254A Datasheet

S-8254A IC. Datasheet pdf. Equivalent

Part S-8254A
Description BATTERY PROTECTION IC
Feature S-8254A Series www.ablicinc.com © ABLIC Inc., 2002-2016 BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-S.
Manufacture ABLIC
Datasheet
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S-8254A
S-8254A Series
www.ablicinc.com
© ABLIC Inc., 2002-2016
BATTERY PROTECTION IC
FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
Rev.5.2_01
The S-8254A Series is a protection IC for 3-serial- or 4-serial-cell lithium-ion / lithium polymer rechargeable
batteries and includes a high-accuracy voltage detector and delay circuit.
The S-8254A Series protects both 3-serial or 4-serial cells using the SEL pin for switching.
Features
(1) High-accuracy voltage detection for each cell
Overcharge detection voltage n (n 1 to 4)
Overcharge release voltage n (n 1 to 4)
3.9 V to 4.4 V (50 mV step)
3.8 V to 4.4 V*1
Accuracy 25 mV
Accuracy 50 mV
Overdischarge detection voltage n (n 1 to 4) 2.0 V to 3.0 V (100 mV step) Accuracy 80 mV
Overdischarge release voltage n (n 1 to 4) 2.0 V to 3.4 V*2
Accuracy 100 mV
(2) Three-level overcurrent protection
Overcurrent detection voltage 1
0.05 V to 0.30 V (50 mV step) Accuracy 25 mV
Overcurrent detection voltage 2
0.5 V
Accuracy 100 mV
Overcurrent detection voltage 3
VVC1 1.2 V
Accuracy 300 mV
(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) Switchable between a 3-serial cell and 4-serial cell using the SEL pin
(5) Charge/discharge operation can be controlled via the control pins.
(6) High-withstand voltage
Absolute maximum rating : 26 V
(7) Wide operating voltage range
2 V to 24 V
(8) Wide operating temperature range 40C to 85C
(9) Low current consumption
During operation
30 A max. (25C)
During power-down 0.1 A max. (25C)
(10) Lead-free, Sn100%, halogen-free*3
*1. Overcharge hysteresis voltage n (n 1 to 4) can be selected as 0 V or from a range of 0.1 V to 0.4 V in
50 mV steps.
(Overcharge hysteresis voltage Overcharge detection voltage Overcharge release voltage)
*2. Overdischarge hysteresis voltage n (n 1 to 4) can be selected as 0 V or from a range of 0.2 V to 0.7 V
in 100 mV steps.
(Overdischarge hysteresis voltage Overdischarge release voltage Overdischarge detection voltage)
*3. Refer to “Product Name Structure” for details.
Applications
Lithium-ion rechargeable battery packs
Lithium polymer rechargeable battery packs
Package
16-Pin TSSOP
1



S-8254A
BATTERY PROTECTION IC FOR 3-SERIAL- OR 4-SERIAL-CELL PACK
S-8254A Series
Rev.5.2_01
Block Diagram
COP
VMP
1 M
900 k
DOP, COP,
RVMD, RVMS
Control Circuit
Delay Circuit
Delay Circuit
Delay Circuit
Delay Circuit
DOP
VINI
CDT
VDD
VC1
VC2
VC3
VC4
CCT
200 nA
CTL
VSS
Remark
1. Diodes in the figure are parasitic diodes.
2. Numerical values are typical values.
Figure 1
SEL
2





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