Texas Instruments bq24261M, Руководство пользователя, Страница: 2 / 25

Introduction
www.ti.com
1 Introduction
1.1 bq24261M IC Features
The bq24261M device integrates a synchronous PWM controller, power MOSFETs, input-current sensing,
high-accuracy current and voltage regulation, charge termination and power path management into a
small WCSP package. The charge parameters can be programmed through an I
2
C interface. Key IC
features include:
• High-efficiency, fully-integrated, NMOS-NMOS, synchronous buck charger with 1.5-MHz frequency
• Charge time optimizer
• Integrated power FETs for up to 3-A charge rate
• 5-V, 1-A OTG VBUS supply
• Power path management between battery and system voltages
For details, see the bq24261M data sheet ( SLUSC09 ).
1.2 bq24261M EVM Features
The bq24261M evaluation module (EVM) on PCB PWR691 provide a complete charger module for
evaluating compact, flexible, high-efficiency, USB-friendly, switch-mode battery charge and power path
management solution for single-cell, Li-ion and Li-polymer battery-powered systems used in a wide range
of portable applications. Key EVM features include:
• Terminal blocks and standard headers for IN, SYS, BAT, TS
• Programmable battery voltage, charge current, input current, and status via I
2
C interface
• IN operating up to 10.5 V for bq24261M
• LED indication for status signals
• Test points for key signals available for testing purposes. Easy probe hook-up
2 User's Guide for WCSP-Packaged bq24261M 3-A Battery Charger SLUUBB5A – April 2015 – Revised October 2015
Evaluation Module
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated