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Product Detailed Parameters
- Description：IC AMP CLASS D MONO 50W 20TSSOPF
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tube
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：50W x 1 @ 6Ohm
- Voltage - Supply：-
- Features：Depop, Mute, Short-Circuit and Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOPF-EP
- Package / Case：20-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The MP7782DF-LF is a 50W mono bridged Class-D audio amplifier manufactured by Monolithic Power Systems. It operates within a supply voltage range of 9.5V to 36V and delivers high output current. The device features a total harmonic distortion plus noise (THD+N) of 0.02% at 1kHz into an 8-ohm load. It utilizes a TSSOP-20 package for surface mount installation. The operational temperature range spans from -40°C to +85°C, ensuring reliability in various environments.
Feature Summary
- Bridged-Tied Load (BTL) architecture for high power monaural output
- High efficiency Class-D operation reducing thermal management requirements
- Integrated protection mechanisms including thermal shutdown and short-circuit protection
Applications
- Home theater systems
- Portable audio equipment
- Automotive infotainment speakers
Procurement Notes
Verify the specific suffix LF for lead-free compliance against project requirements. Confirm the TSSOP-20 footprint matches the PCB design. Check current availability status as distribution may vary. Ensure ESD handling procedures are followed during assembly due to moisture sensitivity classification.
Selection Notes
Select this component for applications requiring high-power monaural amplification with minimal external components. Consider the 36V maximum supply limit when designing power rails. Evaluate thermal dissipation needs based on the 50W output capability and enclosure constraints. Compare THD specifications against audio fidelity requirements.
Part Context
This part belongs to the MP77xx series of audio amplifiers from Monolithic Power Systems. It serves as a high-performance solution for bridged mono configurations. The series is designed to replace older discrete or lower-efficiency amplifier designs in consumer and industrial audio markets.
Replacement Considerations
Direct pin-to-pin replacements should be verified against official MPS substitution guides. Alternative mono Class-D amplifiers with similar 50W output and TSSOP-20 packaging may require schematic review.
