TDA7381：Quad BTL output power amplifier with stand-by and mute inputs, clip detection
The TDA7381 is a class AB audio power amplifier in Flexiwatt25 package designed for car radio applications. Thanks to the fully complementary PNP/NPN output configuration the TDA7381 allows a rail to rail output voltage swing with no need of bootstrap capacitors..
The extremely reduced components count allows very compact sets. The on-board clipping detector simplifies gain compression operations. The fault diagnostics makes it possible to detect mistakes during car-radio assembly and wiring in the car.
Key Features
- High output power capability:
- 4 x 30 W/4 Ω max.
- 4 x 25 W/4 Ω EIAJ
- 4 x 18 W/4 Ω @ 14.4 V, 1 kHz, 10 %
- 4 x 15 W/4 Ω @ 13.2 V, 1 kHz, 10 %
- Clipping detector
- Low distortion
- Low output noise
- Standby function
- Mute function
- Automute at min. supply voltage detection
- Diagnostics facility for:
- Clipping
- Out to GND short
- Out to VS
short
- Thermal shutdown
- Low external component count:
- Internally fixed gain (26 dB)
- No external compensation
- No bootstrap capacitors
- Protections:
- Output short circuit to GND, to VS
, across the load
- Very inductive loads
- Overrating chip temperature with soft thermal limiter
- Load dump voltage
- Fortuitous open GND
- Reversed battery
- ESD protection
Product Specifications
Selection Guides
Sample & Buy
| Part Number | Quantity | Unit Price (US$)
* | Package | Packing Type | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|
| TDA7381 | - | - | FLEXIWATT FM2 25 | Tube | - | - | NEC | EAR99 | CHINA |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|
| TDA7381 | FLEXIWATT FM2 25 | Automotive | Ecopack2 | |
