ABLIC S-82L4A Battery Protection ICs

ABLIC S-82L4A Battery Protection ICs are designed for 3-serial or 4-serial secondary protection of lithium-ion rechargeable batteries. These ICs incorporate high-accuracy voltage detection circuits and delay circuits for the real-time clock and CTL pin. The S-82L4A ICs feature a 2mA maximum VRTC pin output current, low current consumption, and a 1.5V to 3.3V (100mV step) VRTC pin output voltage range. These ICs include delay times generated only by an internal circuit with 1s, 2s, 4s, and 6s VRTC pin shutdown delay times. The S-82L4A battery protection ICs are lead-free and halogen-free.

Features

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

2mA maximum VRTC pin output current
1.500V to 3.300V (100mV step) VRTC pin output voltage with ±2% (Ta = +25°C) accuracy
CO pin output voltage is limited to 7.5V maximum
Output control function via CTL pin (CTL pin is pulled down internally)
Overcharge timer reset function (available and unavailable)
-40°C to +85°C wide operating temperature range
Lead-free (Sn 100%) and halogen-free