TI bq25046EVM-687无线电源接收器解决方案

TI 公司的bq25046 是5W(1.1A/5V)无接触充电应用的电源集成电路,适用于有线和无线电源应用,具有5V稳压输出和集成的3.3V/15mA LDO,输入电压额定值30V,15V过压保护阈值, 能给MSP430BQ1010 MCU直接供电,主要用在无线电源,智能手机,PDA,MP3播放器和低功率手持设备.本文介绍了bq25046主要特性,方框图, bq25046EVM-687评估模块主要性能指标，电路图，材料清单(BOM)，测试框图和元件布局图。

bq25046：1.1A, Single-Input 5-V Power Supply IC for Contactless Charging Applications The bq25046 is a highly integrated linear power supply IC targeted at both wired and wireless power applications. With an accurate 5-V regulated output and integrated 3.3-V LDO, the bq25046 is an ideal solution for wireless power supply solutions up to 5 W.

The bq25046 integrates several functions which enable a wireless charging solution within a small area and low component count. These include a 3.3-V LDO which drives an MSP430BQ1010 wireless controller, high-accuracy current sense for calculating receiver-side power usage, 100mA/400mA current limits enable robust communication at all load current levels, and integrated pass FET acts as load disconnect switch and 5-V regulator to protect downstream circuitry.

bq25046主要特性:

30V Input Rating, with 15V Over-Voltage Protection (OVP) Threshold
..

查看全文