The OM70101DC is a voltage type, ultra-compact, low-cost, system-side/pack-side, fuel gauging system IC for Lithium-ion (Li+) based batteries suitable for portable wearable devices.
The OM70101DC includes a low-power 14-bits Sigma-Delta ADC, a precision reference voltage and built-in NTC bias circuits. It continuously monitors battery voltage, current and temperature parameters. It can continuously monitor battery voltage, current, and temperature, and calculate the state of charge (SOC) of the battery through a patented SOC algorithm, accurately estimating the remaining battery capacity.
The OM70101DC provides flexible interrupt selection for users to timely grasp the status of the battery. Interrupt sources include changes in battery level, low battery level, high temperature, and low temperature.
The OM70101DC uses a 2-wire I2C compatible serial interface and can operate in standard mode or fast mode, support interface voltage from 1.2V to 5V.
The IC is available in a 2×2mm lead-free LGA package.
• Series System-Side or Pack-Side Fuel Gauging
• 3% Maximum Total SOC Measurement Error
• 14-bit Sigma-Delta ADC for Cell Voltage, and NTC Measurement
• Configurable Interrupt for Battery SOC Change, High/Low Battery Temperature
• Patented SOC Algorithm, No Offset Accumulation During Life Time
• No Full-To-Empty Battery Calibration Necessary
• External Temperature Sensor Supported
• Low Power Dissipation
- Sleep Mode 0.45μA (25℃)
- Active Mode 5μA (25℃)
• General I2C Control Interface
• Tiny, Lead free LGA package 2×2mm
• Wearable Devices
• Tablet PCs
• Handheld and Portable Applications
• Lithium-ion or Lithium Polymer Battery Pack
FUNCTION
A low power voltage type fuel gauging system IC for Lithium-ion (Li+) based batteries
PACKAGE
LGA, 2×2mm
