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ABLIC S-19161A/S-19161B Battery Protection ICs

ABLIC S-19161A/S-19161B Battery Protection ICs are protection ICs for lithium-ion/lithium polymer rechargeable batteries, which include high-accuracy voltage detection circuits and delay circuits. It protects 1-cell lithium-ion/lithium polymer rechargeable battery packs from overcharge, over-discharge, and overcurrent. The ABLIC S-19161A/S-19161B Battery Protection ICs come in an SOT-23-6 package with a wide -40°C to +125°C operating temperature range.

Features

  • High-accuracy voltage detection circuit
    • Overcharge detection voltage of 3.500V to 4.800V (5mV step) with an accuracy of ±15mV
    • Overcharge release voltage of 3.100V to 4.800V with an accuracy of ±50mV
    • Over discharge detection voltage of 2.000V to 3.000V (10mV step) with an accuracy of ±50mV
    • Over-discharge release voltage of 2.000V to 3.400V with an accuracy of ±75mV
    • Discharge overcurrent 1 detection voltage of 5mV to 100mV (0.5mV step) with an accuracy of ±1.5mV
    • Discharge overcurrent 2 detection voltage of 10mV to 100mV (1mV step) with an accuracy of ±3mV
    • Load short-circuiting detection voltage
      • 20mV to 100mV (1mV step) with an accuracy of ±5mV
      • 101mV to 300mV (1mV step) with an accuracy of ±10mV
    • Charge overcurrent detection voltage of -100mV to -5mV (0.5mV step) with an accuracy of ±1.5mV
  • Detection delay times are generated only by an internal circuit (external capacitors are unnecessary)
  • Discharge overcurrent control function
    • Release condition of discharge over-current status with load disconnection
    • Release voltage of discharge over-current status with discharge overcurrent release voltage (VRIOV) = VDD × 0.8V (typ.)
  • 0V battery charge (enabled or inhibited)
  • A power-down function of available or unavailable
  • A high withstand voltage of VM pin and CO pin with an absolute maximum rating of 28V
  • Wide operation temperature range of Ta = -40°C to +125°C
  • Low current consumption
    • 2.0µA typ., 4.0µA max. (Ta = +25°C) during operation
    • 50nA max. (Ta = +25°C) during power-down
    • 0.5µA max. (Ta = +25°C) during over-discharge
  • Lead-free (Sn 100%), halogen-free

Applications

  • Lithium-ion rechargeable battery pack
  • Lithium polymer rechargeable battery pack

Datasheets

Block Diagrams

Block Diagram - ABLIC S-19161A/S-19161B Battery Protection ICs
Block Diagram - ABLIC S-19161A/S-19161B Battery Protection ICs
Published: 2025-01-21 | Updated: 2025-01-30