ABLIC S-82H4B Battery Protection ICs

ABLIC S-82H4B Battery Protection ICs are used for secondary protection of 3-serial or 4-serial lithium-ion rechargeable battery packs. These ICs feature high-accuracy voltage detection circuits and delay circuits. The S-82H4B ICs consume low current (maximum 4µA during operation and 0.4µA VRTC pin shutdown) and operate at a wide temperature range of -40°C to 85°C. These ICs include a constant-voltage output circuit capable of outputting 1.5V to 3.3V for a constant-voltage power supply for an external Real-Time Clock IC (RTC). The S-82H4B battery protection ICs are lead-free (Sn 100%) and halogen-free.

Features

High-accuracy voltage detection circuit for each cell:
- Overcharge detection voltage:
  - 3.600V to 5V (5mV step)
  - ±15mV (T_a = +25°C) accuracy
  - ±20mV (T_a = -10°C to +60°C) accuracy
- 3.600V to 5V at ±50mV accuracy overcharge release voltage
- 2.500V to 2.800V (100mV step) at ±50mV accuracy VRTC pin shutdown voltage
1s, 2s, 4s, and 6s overcharge detection delay time, VRTC pin shutdown delay time (Delay times are generated only by an internal circuit (external capacitors are unnecessary))
Overcharge timer reset function (available and unavailable)

CO pin output voltage is limited to 7.5V maximum
1.500V to 3.300V (100 mV step) at ±2% accuracy VRTC pin output voltage
2mA maximum VRTC pin output current
-40°C to +85°C wide operation temperature range
Low current consumption:
- 4μA maximum during operation (V_CU − 1V for each cell)
- 0.4μA maximum during VRTC pin shutdown (VRSD − 1V for each cell)
Lead-free (Sn 100%) and halogen-free