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S-8225A Datasheet BATTERY MONITORING IC

Manufacturer: Seiko Instruments

Overview: S-8225A Series www.sii-ic.com © Seiko Instruments Inc., 2012-2015 BATTERY MONITORING IC FOR 3-SERIAL TO 5-SERIAL CELL PACK Rev.1.7_00 The S-8225A Series includes high-accuracy voltage detection circuits and delay circuits, and can monitor the status of 3-serial to 5-serial cell lithium-ion rechargeable battery in single use. By switching the voltage level which is applied to the SEL1 pin and SEL2 pin, users are able to use the S-8225A Series for 3-serial to 5-serial cell pack. By cascade connection using the S-8225A Series, it is also possible to protect 6-serial or more cells lithium-ion rechargeable battery pack.

Key Features

  • High-accuracy voltage detection function for each cell Overcharge detection voltage n (n = 1 to 5) 3.5 V to 4.4 V (50 mV step) Overcharge release voltage n (n = 1 to 5) Accuracy ±20 mV (Ta = +25°C), ±30 mV (Ta = 0°C to +60°C) 3.3 V to 4.4 V.
  • 1 Accuracy ±50 mV Overdischarge detection voltage n (n = 1 to 5) Overdischarge release voltage n (n = 1 to 5) 2.0 V to 3.2 V (100 mV step) 2.1 V to 3.4 V.
  • 2 Accuracy ±80 mV Accuracy ±100 mV.
  • Overcharge detection delay tim.