SA1412 PDF даташит
Спецификация SA1412 изготовлена «Silan Microelectronics» и имеет функцию, называемую «TWO CELL LI+ BATTERY PROTECTION CIRCUIT». |
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Детали детали
Номер произв | SA1412 |
Описание | TWO CELL LI+ BATTERY PROTECTION CIRCUIT |
Производители | Silan Microelectronics |
логотип |
5 Pages
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SA1412
TWO CELL LI+ BATTERY PROTECTION CIRCUIT
DESCRIPTIONS
SA1412 protects for Lithium-Ion Batteries. When the Lithium-Ion
Batteries is in state of overcharge, overdischarge and overcurrent. The
IC turns off the external mosfet to protect the batteries.
FEATURES
* Overcharge consumption current(VCELL=4.5V ROC=270K ): 150µA
* Normal consumption current(VCELL=3.5V): 18µA
* Overcharge consumption current(VCELL=1.9V): 0.5µA
Overcharge consumption current(VCELL=1.0V): 0.1µA
TSSOP-8-225-0.65
APPLICATIONS
* Digital camer
* Digital vidicon
* Special illumination
* Portable DVD
* PDA
* Interphone
* 7.2V large capacity battery.
ORDERING INFORMATION
Device
SA1412
Package
TSSOP-8-225-0.65
PRODUCTS CATALOG
Part No.
www.DataSheet4U.com
SA1412A
SA1412B
SA1412C
SA1412D
Overcharge
Detection
Voltage
4.350±0.025V
4.300±0.025V
4.250±0.025V
4.300±0.025V
Overcharge
Detection
Hysteresis
Voltage
220±50mV
220±50mV
220±50mV
200±50mV
Overdischarge
Detection
Voltage
Overdischarge
Release
Voltage
Overcurrent
Detection
Voltage
2.3±0.1V
2.3±0.1V
2.3±0.1V
2.5±0.1V
3.5±0.2V
3.5±0.2V
3.5±0.2V
3.0±0.1V
150±15mV
150±15mV
150±15mV
75±15mV
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.2 2007.09.28
Page 1 of 5
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BLOCK DIAGRAM
SA1412
ABSOLUTE MAXIMUM RATING
Characteristics
Supply Voltage
CS Pin Voltage
OC Pin Voltage
Allowable Dissipation
Storage Temperature Range
Operating Temperature Range
Symbol
VCC max
VCSmax
VOCmax
Pd
Tstg
Tamb
Rating
-0.3~18
-0.6~VCC
-0.6~VCC
300
-40~125
-20~70
Unit
V
V
V
mV
°C
°C
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, take SA1412B for instance, Tamb=25°C)
www.DataSheet4U.com
Characteristics
Symbol
Test condition
Min. Typ. Max. Unit
Overcharge Detection Voltage
VOC Tamb=-20°C ~70°C;
4.275 4.300 4.325 V
Overcharge Detection Hysteresis
Voltage
VOC
170 220 270 mV
Overdischarge Detection Voltage
VOD
2.20 2.30 2.40 V
Consumption Current 1
Consumption Current 2
Consumption Current 3
Consumption Current 4
VL pin input Current
IVH1 VH=VL=1.0V, VCS=1.4V
-- -- 0.1 µA
IVH2 VH=VL =1.9V, VCS=3.2V
-- 0.5 0.8 µA
IVH3 VH=VL =3.5V
-- 18.0 23.0 µA
IVH4 VH=VL =4.5V,ROC=270 KΩ -- 150 --
µA
IVL VH=VL =3.5V
-0.3 0 0.3 µA
Overdischarge Release Voltage
Discharge resume by
VDF
voltage rise
3.3 3.5 3.7
V
GD Pin H Output Voltage
GD Pin L Output Voltage
VGDH
VGDL
VH=VL =3.5V, IL=-10µA
VH=VL =3.5V, IL=10µA
VH-0.3 VH-0.2 --
-- 0.2 0.3
V
V
(To be continued)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:2.2 2007.09.28
Page 2 of 5
No Preview Available ! |
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.
30
Typ. Max.
150 --
Unit
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
-0.24 -0.12 -0.04
s
V
PIN DESCRIPTIONS
www.DataShPeIeNt4UD.cEoSmCRIPTION
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
Page 3 of 5
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SA1412 | TWO CELL LI+ BATTERY PROTECTION CIRCUIT | Silan Microelectronics |
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