MPQ4280-AEC1

The MPQ4280 is a fully integrated full-bridge and signal detection device for automotive wireless charging transmitters. It consists of a full-bridge with a low on resistance, a current-sense amplifier with high accuracy, and a 36V high-voltage buck converter.

The integrated full-bridge consists of four N-channel power MOSFETs with low on resistance, as well as integrated gate drivers. It can deliver up to 15A of peak-to-peak current, and provides selectable switching speeds.

The integrated, low-offset current-sense amplifier features an accuracy with a gain error below 1%. The amplifier’s gain is 100V/V, and can be used for input power sensing in wireless charging applications.

The integrated 36V buck converter has an adjustable output voltage (VOUT), and provides a highly efficient output of up to 500mA. This makes it is well-suited for the system supply in wireless charging applications.

The MPQ4280 also provides over-temperature protection (OTP). It is available in a QFN-22 (4mmx5mm) package.

Features

• Integrated Full Bridge:
  - Wide 1V to 26V Operating Input Voltage (VIN) Range with 40V Transient
  - MOSFET On Resistance (21mΩ per MOSFET)
  - Integrated H-Bridge Gate Driver
  - 15A Peak-to-Peak Current
  - 100kHz to 2MHz PWM Frequency Range
  - VIN Over-Voltage Protection (OVP)
• Current-Sense Amplifier:
  - 1V to 26V Common-Mode Input Range
  - ±35μV Maximum Input Offset Voltage
  - 1% Gain Error
  - 100V/V Gain 
• Integrated 36V Buck Converter:
  - Wide 4.7V to 36V VIN Range 
  - 500mA Maximum Continuous Output Current (IOUT)
  - 3.3V to 13V Adjustable Output with 1% Accuracy
  - High Efficiency (>90% for 150mA Set-Up_
  - Output Over-Current Protection (OCP)
  - Output OVP

Application

• Automotive Wireless Charging