S-8225A - Seiko Instruments

S-8225A BATTERY MONITORING IC

1 CTLD DO control pin 2 CTLC CO control pin 3 CO Output pin for overcharge detection 4 DO Output pin for overdischarge detection 5 SEL1 6 SEL2 Switching pins for 3-serial to 5-serial cell*1 7 CDT Capacitor connection pin for delay for overdischarge detection voltage 8 CCT Capacitor connection pin for delay for overcharge detection voltage 9 VS.

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 time and overdischarge detection delay time can be set by external capacitor.
• Switchable between 3-serial to 5-serial cell by.