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S-8242BAN-I8T1G

Description
2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
Categoryaccessories   
File Size365KB,30 Pages
ManufacturerSII
Websitehttp://www.sii.co.jp/
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S-8242BAN-I8T1G Overview

2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8

Rev.1.4
_00
BATTERY PROTECTION IC
FOR 2-SERIAL-CELL PACK
S-8242B Series
The S-8242B Series are protection ICs for 2-serial-cell
lithium-ion/lithium polymer rechargeable batteries and
include high-accuracy voltage detectors and delay circuits.
These ICs are suitable for protecting 2-cell rechargeable
lithium-ion / lithium polymer battery packs from overcharge,
overdischarge, and overcurrent.
Features
High-accuracy voltage detection for each cell
Overcharge detection voltage n (n
=
1, 2)
3.9 V to 4.5 V (50 mV steps)
Accuracy
±25
mV
*1
Overcharge release voltage n (n
=
1, 2)
3.8 V to 4.5 V
Accuracy
±50
mV
Overdischarge detection voltage n (n
=
1, 2)
2.0 V to 3.0 V (100 mV steps)
Accuracy
±50
mV
*2
Accuracy
±100
mV
Overdischarge release voltage n (n
=
1, 2)
2.0 V to 3.4 V
*1.
Overcharge release voltage
=
Overcharge detection voltage
Overcharge hysteresis voltage
(Overcharge hysteresis voltage n (n
=
1, 2) can be selected as 0 V or from a range of 0.1 V to
0.4 V in 50 mV steps.)
*2.
Overdischarge release voltage
=
Overdischarge detection voltage
+
Overdischarge hysteresis voltage
(Overdischarge hysteresis voltage n (n
=
1, 2) can be selected as 0 V or from a range of 0.1 V to
0.7 V in 100 mV steps.)
(2) Two-level overcurrent detection (overcurrent 1, overcurrent 2)
Overcurrent detection voltage 1
0.05 V, 0.08 V to 0.30 V (10 mV steps)
Accuracy
±15
mV
Overcurrent detection voltage 2
1.2 V (fixed)
Accuracy
±300
mV
(3) Delay times (overcharge, overdischarge, overcurrent) are generated by an internal circuit (external capacitors are
unnecessary).
(4) 0 V battery charge function available/unavailable are selectable.
(5) Charger detection function
The overdischarge hysteresis is released by detecting negative voltage at the VM pin (−0.7 V typ.) (Charger
detection function).
(6) High-withstanding-voltage devices
Absolute maximum rating: 28 V
(7) Wide operating temperature range
−40°C
to
+85 °C
(8) Low current consumption
Operation mode
10
µA
max. (+25°C)
Power-down mode
0.1
µA
max. (+25°C)
(9) Small package
SNT-8A, 8-Pin TSSOP
(10) Lead-free products
(1)
Applications
Lithium-ion rechargeable battery packs
Lithium polymer rechargeable battery packs
Packages
Package Name
SNT-8A
8-Pin TSSOP
Package
PH008-A
FT008-A
Drawing Code
Tape
PH008-A
FT008-E
Reel
PH008-A
FT008-E
Land
PH008-A
Seiko Instruments Inc.
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