ABLIC U.S.A. Inc.

S-19161A/B Series Automotive Battery Protection IC for One-Cell Pack

The ABLIC S-19161A/B series protection IC for lithium-ion/lithium polymer rechargeable batteries includes high-accuracy voltage detection and delay circuits

Image of ABLIC S-19161A/B Series Automotive Battery Protection ICThe ABLIC S-19161A/B series automotive one-cell battery protection IC is ideal for protecting lithium-ion batteries used in backup power systems. The S-19161A/B series operates over a wide temperature range, from -40°C to +125°C. This IC is AEC-Q100 (Grade 1) qualified and PPAP capable, ensuring reliability for automotive applications. By using the S-19161A/B series for protection, a simple protection circuit can be constructed.

Features
  • High-accuracy voltage detection circuit
    • Overcharge detection voltage
      • 3.500 V to 4.800 V (5 mV step) with accuracy ±15 mV
    • Overcharge release voltage
      • 3.100 V to 4.800 V with accuracy ±50 mV
    • Overdischarge detection voltage
      • 2.000 V to 3.000 V (10 mV step) with accuracy ±50 mV
    • Overdischarge release voltage
      • 2.000 V to 3.400 V with accuracy ±75 mV
    • Discharge overcurrent 1 detection voltage
      • 5 mV to 100 mV (0.5 mV step) with accuracy ±1.5 mV
    • Discharge overcurrent 2 detection voltage
      • 10 mV to 100 mV (1 mV step) with accuracy ±3 mV
    • Load short-circuiting detection voltage
      • 20 mV to 100 mV (1 mV step) with accuracy ±5 mV
      • 101 mV to 300 mV (1 mV step) with accuracy ±10 mV
    • Charge overcurrent detection voltage
      • -100 mV to -5 mV (0.5 mV step) with accuracy ±1.5 mV
  • Lead-free (Sn 100%), halogen-free
  • AEC-Q100 in process
  • Detection delay times are generated only by an internal circuit (external capacitors are unnecessary).
  • Discharge overcurrent control function
    • Release condition of discharge overcurrent status: Load disconnection
    • Release voltage of discharge overcurrent status: Discharge overcurrent release voltage (VRIOV) = VDD × 0.8 (typ.)
  • 0 V battery charge
    • Enabled, inhibited
  • Power-down function
    • Available, unavailable
  • High-withstand voltage
    • VM pin and CO pin: Absolute maximum rating 28 V
  • Wide operation temperature range
    • Ta = -40°C to +125°C
  • Low current consumption
    • During operation: 2.0 μA typ., 4.0 μA max. (Ta = +25°C)
    • During power-down: 50 nA max. (Ta = +25°C)
    • During overdischarge: 0.5 μA max. (Ta = +25°C)
Resources
    Image of ABLIC S-19161A/B Series Graph
Applications
  • Lithium-ion rechargeable battery packs
  • Lithium polymer rechargeable battery packs

S-19161A/B Series Automotive Battery Protection IC

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
LITHIUM ION BATTERY ICS-19161AACA-M6T1U7LITHIUM ION BATTERY IC74 - Immediate$3.73View Details
LITHIUM ION BATTERY ICS-19161BACA-M6T1U7LITHIUM ION BATTERY IC2990 - Immediate$3.73View Details
Published: 2025-04-14