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