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STMicroelectronics STBC03 Li-Ion Linear Battery Charger

STMicroelectronics STBC03 Li-Ion Linear Battery Charger is a highly integrated power management device that prevents the battery from being damaged under fault conditions. The STBC03 embedds a linear battery charger, a 150mA LDO, 2 SPDT load switches, and a protection circuit module (PCM). The STBC03 uses a CC/CV algorithm to charge the battery.

The fast charge and the pre-charge current can be independently programmed using dedicated resistors. The termination current is set to 5% of the programmed fast charge current but has fixed values for fast charge currents lower than 20mA. The battery floating voltage value is programmable and can be set to a value up to 4.45V.

Features

  • Charges single-cell Li-Ion batteries with CC/CV algorithm and charge termination
  • Fast charge current up to 650mA adjustable by an external resistor
  • Pre-charge current from 1mA
  • Adjustable floating voltage up to 4.45V
  • Integrated low quiescent LDO regulator
  • Auto-recharge function
  • Embedded protection circuit module (PCM) featuring battery overcharge, battery over-discharge, and battery overcurrent protections
  • Charging timeout
  • Shipping mode feature allows battery low leakage when over-discharged
  • Very low battery leakage in over-discharge and shutdown mode
  • Automatic power path management
  • Charger enable input
  • Charge/fault status output
  • Battery voltage pin to allow external gauging
  • Two 3Ω SPDT load switches
  • Available in Flip Chip 30, 400μm pitch package
  • Rugged ±4kV HBM, ESD protection on the most critical pins

Applications

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

Block Diagram

Block Diagram - STMicroelectronics STBC03 Li-Ion Linear Battery Charger

Associated Tool

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Publicado: 2017-07-10 | Actualizado: 2022-06-16