Inductorless 2x15W Stereo BTL Fix Frequency Class D Audio Amplifier Evaluation Board
The EV7752-F-00A is the evaluation board for the MP7752, a 15W stereo BTL Fix Freuquency Inductorless Class D Audio Amplifier. It is one of MPS’ products of fully integrated audio amplifiers which dramatically reduce solution size by integrating the following:
- 240mΩ power MOSFETs
- Startup / Shutdown pop elimination
- Short circuit protection circuits
- Advanced EMI performance
- Inductorless topology
The MP7752 utilizes Bridge Tied Load output structure capable of delivering stereo 15W into 8Ω speakers. It features in automatic shutdown function which can save power in battery-used system. The PLIMIT function is useful for limiting total output power by simply adjust a DC reference voltage at PLIMIT pin. MPS Class D Audio Amplifiers exhibit the high fidelity of a Class A/B amplifier at high efficiency.
- 15W Stereo BTL Output at VDD = 16V into 8Ω loads
- 9.5W Stereo BTL Output at VDD = 12V into 8Ω loads
- 90% Efficiency at 9.5W x 2 and VDD=12V with 8Ω load, Stereo
- Low Noise (115μV Typical)
- 5V to 18V Operation from a Single Supply
5-18VDD, 2x15W Fixed Frequency Filterless Stereo BTL Class-D Audio Amplifier
MP7752 is an analog input inductorless Class D Audio Amplifier which can drive stereo speakers in bridge-tied-load configuration. It is one of MPS’ products of fully integrated audio amplifiers which dramatically reduce solution size by integrating the following:
240mΩ power MOSFETs
Startup / Shutdown pop elimination
Short circuit protection circuits
Advanced EMI performance
Inductorless while passing EMC test
The MP7752 utilizes a stereo BTL structure capable of delivering 15W per channel into 8Ω speakers at 16V power supply. MPS Class D Audio Amplifiers exhibit the high fidelity of a Class AB amplifier at high efficiencies.
The MP7752 includes an internal circuit which allows the system automatic shutdown after the absence of the audio signal. This feature is used for energy-using products and for battery operated applications.
It also has an adjustable power limit function. The PLIMIT circuit sets a limit on the output peak-to-peak voltage. The limiting is done by limiting the duty cycle to fixed maximum value. This limit can be thought of as a "virtual" voltage rail which is lower than the supply connected to PVCC.
The MP7752 is available in TSSOP-28 EP package.