LT LTC4125IUFD#PBF

无线电力发射器1mA3V ~ 5.5V

Overview

The LTC4156EUFD/IUFD#PBF is a 15 watt I2C controlled power manager with PowerPath™ instant-on operation, high efficiency switching battery charging and USB compatibility. The LTC4156EUFD/IUFD#PBF seamlessly manages power distribution from two 5V sources, such as a USB port and a wall adapter, to a single-cell rechargeable lithium iron phosphate battery and a system load.

The LTC4156EUFD/IUFD#PBF is available in the low profile (0.75mm) 28-lead 4mm × 5mm QFN surface mount package.

Features

Monolithic 5W Wireless Power Transmitter

AutoResonantTM Switching Frequency Adjusts to Resonant Capacitance and Transmit Coil Inductance* n Transmit Power Automatically Adjusts to Receiver Load*

Input Voltage Range: 3V to 5.5V

Integrated 100mΩ Full Bridge Switches

Multiple Foreign Object Detection Methods

Programmable Average Input Current Limit and Monitor

NTC Input for System/Component Temperature Qualified Power Transfer

Wide Operating Switching Frequency Range: 50kHz to 250kHz

Thermally Enhanced 4mm × 5mm QFN 20-Lead Package

Applications

Hermetically and/or Electrically Insulated Devices

Military Sensors and Devices

Medical Equipment

Industrial Handhelds