onsemi LC709204F Battery Fuel Gauge
onsemi LC709204F Battery Fuel Gauge is used for 1-cell Lithium-Ion/Polymer batteries. This onsemi device is a Smart LiB Gauge device using an HG-CVR2 algorithm. This fuel gauge accurately measures a battery's relative state of charge (RSOC) even under unstable conditions, including changes in battery temperature, loading, aging, and self-discharge. The HG-CVR2 algorithm can be easily configured to begin taking battery measurements by setting up a few parameters after battery insertion, reducing complexity in the development process. LC709204F includes state of health (SOH) reporting and multiple integrated alarm functions to support battery safety.
Features
- HG-CVR2 algorithm technology
- Small footprint with no need for a current-sensing resistor
- Accurate RSOC of an aging battery
- Stable gauging by automatic convergence of error
- Immediate accurate gauging after battery insertion
- Eliminates learning cycle
- 2A operational mode current
- Improvement of the battery safety by alarm function
- RSOC/voltage/temperature
- Battery lifetime measurement SOH/cycle count/operating time
- Remaining time estimation
- Time to full
- Time to empty
- Three temperature inputs
- Inputs to sense two NTC thermistors
- Via I2C
- Detection of battery operating conditions charging/discharging
- Detection of battery insertion
- I2C Interface (supported up to 400kHz)
- Lead-, halogen-, and BFR-free
- RoHS compliant
Applications
- Wearables/IoT devices
- Smartphones/PDA devices
- Digital cameras
- Portable game players
- USB-related devices
Block Diagram
Published: 2020-02-04
| Updated: 2024-06-13