BQ25046DQCR

用于非接触式充电应用的第一代 1.1A、单输入 5V 电源 IC 10-WSON -40 to 85

DESCRIPON

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.

FEATURES

• 30V Input Rating, with 15V Over-Voltage Protection OVP Threshold

• Integrated Charge Current Sense for Wireless Power Transfer Efficiency Monitoring

• 3.3V, 15mA integrated Low Dropout Linear Regulator VDD3.3 Supplies Power to MSP430BQ1010 Directly

• 2% Output Voltage Regulation

• Pin Selectable 100mA and 400mA Current Limit Enables Robust Communication in Wireless Power Systems at any Output Current Level

• Soft-Start Feature to Reduce Inrush Current

• Status Indication – Power Good PG and Output Enabled CHG

• Available in Small 2mm × 3mm DFN-10 Package

APPLICATIONS

• Wireless Power Applications

• Smart Phones

• PDAs

• MP3 Players

• Low-Power Handheld Devices