Seiko Instruments S-8254A
The S-8254A Series is a protection IC for 3-serial- or 4-serial-cell lithium-ion / lithium polymer rechargeable batteries and includes a high-accuracy voltage detector and delay circuit. The S-8254A Series protects both 3-serial or 4-serial cells using the SEL pin for switching.| Part No. | S-8254A |
|---|---|
| Datasheet | S-8254A Download |
| Manufacturer |  Seiko Instruments |
| Description | BATTERY PROTECTION |
| Buy | Stock & Price |
FEATURES
(1) High-accuracy voltage detection for each cell● Overcharge detection voltage n (n = 1 to 4)
● Overcharge release voltage n (n = 1 to 4) 3.9 V to 4.4 V (50 mV step) 3.8 V to 4.4 V*1 Accuracy ±25 mV Accuracy ±50 mV
● Overdischarge detection voltage n (n = 1 to 4) 2.0 V to 3.0 V (100 mV step) Accuracy ±80 mV
● Overdischarge release voltage n (n = 1 to 4) 2.0 V to 3.4 V*2 Accuracy ±100 mV (2) Three-level overcurrent protection
● Overcurrent detection voltage 1 0.05 V to 0.30 V (50 mV step) Accuracy ±25 mV
● Overcurrent detection voltage 2 0.5 V Accuracy ±100 mV
● Overcurrent detection voltage 3 VVC1 − 1.2 V Accuracy ±300 mV (3) Delay times for overcharge detection, overdischarge detection and overcurrent detection 1 can be set by external capacitors (delay times for overcurrent detection 2 and 3 are fixed internally). (4) Switchable between a 3-serial cell and 4-serial cell using the SEL pin (5) Charge/discharge operation can be controlled via the control pins. (6) High-withst...
