• Part: bq25A
  • Description: 1-4 Cell Li+ Battery SMBus Charge Controller
  • Manufacturer: Texas Instruments
  • Size: 2.30 MB
Download bq25A Datasheet PDF
Texas Instruments
bq25A
Features - 1 SMBus Host-controlled NMOS-NMOS synchronous buck converter with programmable 615k Hz, 750k Hz, and 885k Hz switching frequencies - Automatic N-channel MOSFET selection of system power source from adapter or battery driven by internal charge pumps - Enhanced safety features for over voltage protection, over current protection, battery, inductor and MOSFET short circuit protection - Programmable input current, charge voltage, charge current limits - ±0.5% Charge voltage accuracy up to 19.2V - ±3% Charge current accuracy up to 8.128A - ±3% Input current accuracy up to 8.064A - ±2% 20x Adapter current or charge current amplifier output accuracy - Programmable battery depletion threshold, and battery LEARN function - Programmable adapter detection and indicator - Integrated soft start - Integrated loop pensation - Real time system control on ILIM pin to limit charge current - AC Adapter operating range 4.5V-24V - 5µA Off-state battery discharge current - 0.65m A (0.8m A max) Adapter...
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