BQ25601 IC Pinout & Circuit Repair Guide for Charging Issues
BQ25601 IC Pinout, charging circuit, boot sequence and repair guide. Check VBUS, SYS, BAT, REGN, TS and common charging faults step by step.
BQ25601 IC Pinout & Circuit Repair Guide for Charging Issues
BQ25601 IC Boot Sequence, Pinout and Circuit Repair Guide The BQ25601 is a highly integrated single-cell Li-ion and Li-polymer battery charger and power-path management IC from Texas Instruments. It combines a synchronous buck charger, battery power-path control, USB input management, OTG boost operation, battery temperature monitoring, protection functions, and I²C-based configuration in a compact 24-pin WQFN package. For electronics repair work, this IC is important because a charging problem is not always caused by the battery or USB connector. A damaged input capacitor, shorted PMID rail, incorrect TS network, faulty switching components, poor PCB grounding, or a failed BQ25601 can produce very similar symptoms. This guide explains the BQ25601 circuit operation, pin functions, startup sequence, common charging faults, practical repair checks, and important measurement points. Note: Always compare the board schematic, component values, PCB layout, and IC revision with the official Texa…
