Friday, September 5, 2014
TDA8551 Audio Ampllifier 1 x 1 W
TDA8551general description:![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjW3T71k2LzjGHy87GGgMM-9Zr1MoST_w4l1o5d2AVJuDLXMEpH_mhMtRmgK-1zDRBDCwSCCn11onvRqfxBw0vXuS8aPOhshRq8e44jmgEX5gXQ84h8Cr8gHuwCQFcabKeWT640LFs0W0E/s200/TDA8551T.jpg)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjW3T71k2LzjGHy87GGgMM-9Zr1MoST_w4l1o5d2AVJuDLXMEpH_mhMtRmgK-1zDRBDCwSCCn11onvRqfxBw0vXuS8aPOhshRq8e44jmgEX5gXQ84h8Cr8gHuwCQFcabKeWT640LFs0W0E/s200/TDA8551T.jpg)
The TDA8551; TDA8551T is a one channel 1 W Bridge-Tied Load (BTL) audio power amplifier capable of delivering 1 W output power to an 8 Ω load at THD = 10% using a 5 V power supply. The circuit contains a BTL power amplifier, a digital volume control and standby/mute logic. The TDA8551T comes in an 8 pin SO package and the TDA8551 in a 8 pin DIP package.
TDA8551 features:
- One pin digital volume control
- Volume setting with UP/DOWN pulses
- Flexibility in use
- Few external components
- Low saturation voltage of output stage
- Standby mode controlled by CMOS compatible levels
- Low standby current
- No switch-on/switch-off plops
- High supply voltage ripple rejection
- Protected against electrostatic discharge
- Outputs short circuit safe to ground, VP and across the load
- Thermally protected.
TDA8551aplications:
- Portable consumer products
- Personal computers
- Telephony
TDA8551circuit diagram:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTgZrDQOMMlDWljVPBrDCtos0oUnIlw50bDhKjz8TIMJnNnd6IsZFwwH_cQrl8hDX8BBH_-Ys5teGgp6CaWakahfDUrtUpWvSDGhLtMemBMfmVrWItA5nICir36-7O79J6Ut0f4aw9yVA/s640/TDA8551T+circuit.png)
TDA8551pcb layout:
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEglgNp3i1dgKHo0Rl7dpxMsEMkj1UYZrqdlNgsR_iL9_TBp8lx-zR8E_BYqgLhbBEVMUNALKdSwt2wtCd5medVqM8YOLng8Fq1jhvDJd-C5hZS1cfoMSKUBu1Rf3gZJSLu_fwi9MJ-Mn6E/s640/TDA8551T+pcb+layout.png)
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