THREE OR FOUR-CELL LI
+
BATTERY PROTECTION CIRCUIT
DESCRIPTION
The SA45141 is a three- or four-cell Lithium-Ion Batteries protection
circuit. SA45141 protects for Lithium-Ion Batteries. It has functions
below: Overcharge detection, Overdischarge detection, Overcurrent
detection. When the Lithium-Ion Batteries is in state of overcharge,
overdischarge and overcurrent. The IC turns off and on the external
MOSFET to protect the batteries.
FEATURES
* Low current consumption
-- Overcharge: 55μA (V
CELL
=4.4V CON=0V)
-- Normal: 27μA (V
CELL
=3.5V CON=0V)
-- Overdischarge: 2μA (V
CELL
=1.8V CON=0V)
-- Overdischarge: 0.1μA Max(V
CELL
=1.0V CON=0V)
* Overcharge detection voltage:
two types (4.350±0.025V, 4.250±0.025V)
*Overcharge detection hysteresis voltage:
two types (200±60mV, 8±8mV)
* Overdischarge detection voltage: three types(2.3±0.1V, 2.6±0.2V ,
2.9±0.1V)
* Overdischarge release voltage:
two types (3.0±0.15V, 3.0±0.20V)
* Overcurrent detection voltage: two types(150±15mV,200±15mV)
SSOP-20-225-0.65
APPLICATIONS
* 3-cell or 4-cell lithium-ion batteries
* Notebook PC
* Electric bicycle
*
Electric tool
s
ORDERING INFORMATION
Overcharge
detect
Overcharge
detect voltage hysteresis
（V）
voltage
（mV）
4.350±0.025
SSOP-20-225-0.65
4.350±0.025
4.350±0.025
4.250±0.025
200±60
200±60
200±60
8±8
Overdis-
charge
detect
voltage
（V）
2.3±0.1
2.6±0.2
2.9±0.1
2.9±0.1
Overdis-
charge
release
voltage
（V）
3.00±0.15
3.00±0.20
3.00±0.15
3.00±0.15
Overcurrent
detect
voltage
（mV）
150±15
150±15
200±15
200±15
Device
Package
SA45141SC
SA45141SD
SA45141SE
SA45141SH
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.5
2009.06.05
Page 1 of 10
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
