The OM70101WV 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 OM70101WV 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 OM70101WV 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 OM70101WV also uses a 2-wire I2C compatible serial interface and can operate in standard mode or fast mode.
The IC is available in a 1.538×1.538mm lead-free 9-ball WLCSP 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 WLCSP package
• 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
WLCSP-9, 1.538×1.538mm
