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SA1412 Datasheet(PDF) 3 Page - Silan Microelectronics Joint-stock

No. de Pieza. SA1412
Descripción  TWO CELL LI BATTERY PROTECTION CIRCUIT
Descarga  5 Pages
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Fabricante  SILAN [Silan Microelectronics Joint-stock]
Página de inicio  http://www.silan.com.cn
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SA1412 Datasheet(HTML) 3 Page - Silan Microelectronics Joint-stock

   
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SA1412
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
REV:2.2
2007.09.28
Http: www.silan.com.cn
Page 3 of 5
(Continued)
Characteristics
Symbol
Test condition
Min.
Typ.
Max.
Unit
OC Pin Output Current
IOCH
VH=VL =4.5V
30
150
--
µA
Overcurrent Detection Threshold
Value
VCS1
135
150
165
mV
Overcurrent Short Threshold Value
VCS2
0.35
0.45
0.55
V
Overcurrent Release
Load release: Load of 5M
Ω or more between both battery
pack pins
Overcurrent Detection Delay Time 1
TOC1
7
12
18
ms
Overcurrent Detection Delay Time 2
TOC2
--
30
100
µs
Overdischarge Detection Delay
Time
Tod
8
13
20
ms
Overcharge Detection Dead Time
Toch
CTC=0.18Uf
0.5
1.0
1.5
s
Start-Up Voltage
VST
VH=VL=2.5V
-0.24
-0.12
-0.04
V
PIN DESCRIPTIONS
PIN DESCRIPTION
Pin no.
Pin name
I/O
Description
1
OC
O
Overcharge detection output pin
2
GD
O
Discharge control FET (N-ch) control output pin
3
CS
I
Overcurrent detection input pin
4
GND
--
Ground pin, or lower cell load negative pole input pin.
5
TD
--
Overcharge detection dead time setting pin
6
VL
--
Connection pin for lower cell positive electrode side and upper cell
negative electrode side.
7
VCC
--
Power supply input pin
8
VH
--
Upper cell positive electrode input pin
FUNCTION DESCRIPTION
This IC is a lithium ion battery (2-cell in-series type) protection IC. It has functions below: Overcharge detection,
Overdischarge detection, Overcurrent detection. It controls the batteries charging or discharging by control the


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