TIDA-00538 Reference Design

Texas Instruments

1S 5A Fast Charger with MaxCharge Technology for High Input Voltage and Adjustable USB OTG Boost


The bq25892 is a highly-integrated switch-mode battery charge management and system power path management device for single cell Li-Ion and Li-polymer battery in a wide range of smartphone and other portable devices with USB or high voltage adaptors. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution.

  • Support high voltage adaptor to achieve up to 5A chargeing current
  • Highly integrated solution with the highest efficiency
  • Input Current Optimizer (ICO) to best utilize the adaptor
  • ADC to provide system and battery monitoringBoth host control and autonomous charging when the host is not available
  • Integrated low Rdson battery FET for long battery run time
  • Handset: Smartphone
Product Categories
  • Power Management


Part Number Name Companion Part
LP2985A-33 LP2985A-33 Buy Datasheet
TS3USB221 TS3USB221 Buy Datasheet
BQ25892 TW BQ25892 TW Datasheet

Bill Of Materials

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Test Data

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Other Documents

Title Updated Type Size (KB)
TIDA-00538 Gerber 25 Mar 2015 ZIP 1900
TIDA-00538 PCB 25 Mar 2015 PDF 656
TIDA-00538 Assembly Drawing 25 Mar 2015 PDF 239
TIDA-00538 BOM 25 Mar 2015 PDF 73
TIDA-00538 Schematic 25 Mar 2015 PDF 214