Texas Instruments BQ24278EVM-759 Evaluation Module BQ24278EVM-759 BQ24278EVM-759 Scheda Tecnica
Codici prodotto
BQ24278EVM-759
Introduction
1
Introduction
1.1
bq2427x IC Features
The bq24278 integrates a synchronous PWM controller, power MOSFETs, input current sensing, high-
accuracy current and voltage regulation, charge termination and power path management into a chipscale
package. Key integrated circuit (IC) features include:
accuracy current and voltage regulation, charge termination and power path management into a chipscale
package. Key integrated circuit (IC) features include:
•
High-efficiency, fully integrated, NMOS-NMOS, synchronous buck charger with 1.5-MHz frequency
•
Integrated power FETs for up to 2.5-A charge rate
•
Power path management between battery and system voltages
For details, see the bq24278 data sheet (
1.2
bq24278 EVM Features
The bq24278 evaluation module (EVM) is a complete charger module for evaluating compact, flexible,
high-efficiency, 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:
high-efficiency, 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:
•
Programmable charge current, input current on, and V
INDPM
threshold using jumpers
•
Input power connector for ac adapter
•
IN operating range of 4.2 V – 10 V
•
LED indication for status signals
•
Test points for key signals available for testing purposes. Easy probe hook-up
2
QFN-Packaged bq24278 Evaluation Module
SLUU917 – April 2012
Copyright © 2012, Texas Instruments Incorporated