Monolithic Power Systems (MPS) EVQ7795-R-00A Evaluation Board

Monolithic Power Systems (MPS) EVQ7795-R-00A Evaluation Board is designed to demonstrate the capabilities of the MPQ7795-AEC1 audio amplifier. This amplifier is an automotive-grade, low-EMI, differential analog input Class-D audio amplifier with I²C diagnostics. The MPQ7795 amplifier employs a Bridge-Tied Load (BTL) structure to deliver 24.5W of power to 4Ω speakers with a 14.4V power supply. The EVQ7795-R-00A board is a fully assembled and tested evaluation board. This evaluation board with the MPQ7795 audio amplifier can be used in automotive e-call systems, telematics systems, auto infotainment audio systems, and automotive cluster systems.

Features

5V to 36V operating input voltage (V_IN) range
±5A peak current output
Differential analog input
42V load dump
0.02μA low standby current
6.5mA low idle current
330kHz, 384kHz, 470kHz, or 2.2MHz selectable Switching Frequency (f_SW)
Delivers 24.5W into 4Ω load with 14.4V power V_DD (PV_DD)
High power efficiency:
- Up to 92.6% efficiency for 8Ω load
- Up to 90.4% efficiency for 4Ω load
150mΩ power MOSFETs
Start-up/shutdown pop-noise reduction
Selectable voltage gain

Adjustable power limiter
Open/short load detection
Output short to PV_DD/Ground detection
Over-Current Protection (OCP)
Under-Voltage Protection (UVP)
Thermal shutdown
Status reporting via the I²C interface and fault output pin (FAULT#)
Low EMI meets CISPR 25 class 5 specifications with a long output cable
Communicates with Microcontroller Unit (MCU) via I²C interface
Supports 2Ω to 16Ω speakers
Available in a QFN-24 (4mm x 4mm) package
Available in AEC-Q100 Grade 1

Applications

Automotive Emergency Call (e-Call) systems
Telematics systems

Audio infotainment systems
Automotive clusters

Monolithic Power Systems (MPS) EVQ7795-R-00A Evaluation Board

Features

Applications

Schematic

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