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S-8239AAA-M6T1U Datasheet, PDF (1/30 Pages) Seiko Instruments Inc – OVERCURRENT MONITORING IC
S-8239A Series
www.sii-ic.com
© SII Semiconductor Corporation, 2013-2016
OVERCURRENT MONITORING IC
FOR MULTI-SERIAL-CELL PACK
Rev.1.4_03
The S-8239A Series is an overcurrent monitoring IC for multi-serial-cell pack including high-accuracy voltage detection
circuits and delay circuits.
The S-8239A Series is suitable for protection of lithium-ion / lithium polymer rechargeable battery packs from overcurrent.
 Features
• Built-in high-accuracy voltage detection circuit
Overcurrent 1 detection voltage*1
0.04 V to 0.30 V (10 mV step)
Accuracy ±15 mV
Overcurrent 2 detection voltage
0.1 V to 0.7 V (100 mV step)
Accuracy ±100 mV
Overcurrent 3 detection voltage
1.2 V (Fixed)
Accuracy ±300 mV
• Built-in three-step overcurrent detection circuit: Overcurrent 1, overcurrent 2, overcurrent 3
• Overcurrent 3 detection function is selectable: Available, unavailable
• UVLO (under voltage lock out) function
UVLO detection voltage
2.0 V (Fixed)
Accuracy ±100 mV
• High-withstand voltage:
VM pin, DO pin: Absolute maximum rating 28 V
• Delay times are generated only by an internal circuit (External capacitors are unnecessary).
• Low current consumption
During normal operation:
7.0 μA max.
During UVLO operation:
6.0 μA max.
• Output logic:
Active "L", Active "H"
• Wide operation temperature range:
Ta = −40°C to +85°C
• Lead-free (Sn 100%), halogen-free
*1. Overcurrent 1 detection voltage ≤ 0.06 V should be satisfied in the case of overcurrent 2 detection voltage = 0.1 V.
Overcurrent 1 detection voltage ≤ 0.85 × overcurrent 2 detection voltage − 0.05 V should be satisfied in the case of
overcurrent 2 detection voltage ≥ 0.2 V.
 Applications
• Lithium-ion rechargeable battery pack
• Lithium polymer rechargeable battery pack
 Package
• SOT-23-6
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