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STMicroelectronics STBC02 Li-Ion Linear Battery Chargers

STMicroelectronics STBC02 Li-Ion Linear Battery Chargers combine embedding a linear battery charger, a 150 mA LDO, 2 SPDT load switches, a smart reset/watchdog block, and a protection circuit module (PCM), into one highly integrated power management IC. The protection circuit module (PCM) prevents the battery from being damaged under fault conditions. The STBC02 has a fast charge and pre-charge current that can be independently programmed using dedicated resistors, that make a CC/CV algorithm to charge the battery.

At 5% of the programmed fast charge current, the termination current is set by default, but it can be changed to be fixed to different values. The chargers have a battery floating voltage value that is programmable and can be set to a value up to 4.45V. To stop the charging process anytime, the STB02 features a charger enable input. The STB02 maximizes the battery life during end-product shelf life by drawing less than 10nA from the connected battery in shipping mode conditions.

Features

  • Charges single-cell Li-Ion batteries with CC/CV algorithm and charge termination
  • Fast charge current up to 450mA
  • Pre-charge current from 1mA to 450mA
  • Adjustable floating voltage up to 4.45V
  • Integrated low quiescent LDO regulator
  • Automatic power path management
  • Auto-recharge function
  • Embedded protection circuit module (PCM) featuring battery overcharge, battery over-discharge, and battery overcurrent protections
  • Charging timeout to terminate the charging process for safety reasons
  • Shipping mode feature allows battery low leakage when over-discharged
  • Charge/fault status output
  • Very low battery leakage in over-discharge and shutdown mode
  • Battery voltage pin to allow external gauging
  • Two 3Ω SPDT load switches
  • Reset generator triggered by USB detection
  • SWIRE allows the STBC02 functions to be controlled
  • Available in Flip Chip 30, 400um pitch package
  • Rugged ±4kV HBM, ESD protection on the most critical pins

Applications

  • Smart-watches and wearable devices
  • Fitness and medical accessories
  • Li-Ion and other Li-Poly battery rechargeable equipment

Associated Tool

STMicroelectronics STBC02 Li-Ion/Li-Po Battery Evaluation Board

Provides full access to functions through header connectors, supplied via a micro-AB USB connector.

Learn Moretungkol sa STMicroelectronics STBC02 Li-Ion/Li-Po Battery Evaluation Board View Productskaugnay ng STMicroelectronics STBC02 Li-Ion/Li-Po Battery Evaluation Board
Inilathala: 2017-05-18 | Na-update: 2022-05-05