S-82D9/F9 Battery Monitoring IC (Simple Battery Level Indication IC)

ABLIC battery monitoring ICs operate without a microcontroller to reduce power consumption for battery voltage monitoring

Image of Ablic S-82D9/F9 Battery Monitoring ICABLIC S-82D9/82F9 series battery monitoring ICs can light up four or five LEDs and monitor voltage to provide a simple indication of the remaining battery level. Integrating multiple voltage monitoring functions into a single IC helps save space in systems. Furthermore, operating without a microcontroller reduces power consumption for battery voltage monitoring.

The S-82F9/82D9 series offers a choice between EN (enable) and SENSE pins, making it ideal for simple battery level indication in various devices.

Two LED lighting methods are available: “full charge all on” and “individual step voltage on,” allowing users to choose the optimal option for their application.

Features
  • Detection voltage accuracy: ±1.0%
  • Hysteresis characteristics:
    • S-82F9 series: VHYS1(S) to VHYS5(S) = 0 mV, 50 mV, 300 mV, 400 mV, and 500 mV
    • S-82D9 series: VHYS1(S) to VHYS4(S) = 0 mV, 50 mV, 300 mV, 400 mV, and 500 mV
  • Current consumption:
    • During operation: IDD1 = 10 μA max
    • During power-off: IDD2 = 0.1 μA max
  • Operation voltage range: VDD = 3.6 V to 24 V
  • Detection voltage:
    • S-82F9 series: VDET1(S) to VDET5(S) = 7.5 V to 21.5 V (0.1 V step)
    • S-82D9 series: VDET1(S) to VDET4(S) = 7.5 V to 21.5 V (0.1 V step)
  • Output form: Nch open-drain output
  • Output logic: full charge all on and individual step voltage on
  • SENSE pin power-off voltage: VSENSE less than 0.3 V (S-82F9B/S-82D9B series)
  • Voltage detection pin
    • S-82F9A/D9A series: VDD pin
    • S-82F9B/D9B series: SENSE pin
  • Operation temperature range: TA = -40°C to +85°C
  • Lead-free (Sn 100%) and halogen-free
Applications
  • Rechargeable lithium-ion battery packs

S-82D9/F9 Battery Monitoring ICs

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
BATTERY MONITORING ICS-82D9AAA-S8T1UBATTERY MONITORING IC100 - Immediate$140.21View Details
BATTERY MONITORING ICS-82F9AAA-S8T1UBATTERY MONITORING IC100 - Immediate$173.04View Details
Published: 2025-09-29