The TDA2004A is a 10 + 10W stereo amplifier chip for car radios, known for its low distortion, low noise, and high reliability. It provides various protections against output AC short circuit, inductive loads, overrating chip temperature, load dump voltage surge, and fortuitous open ground. The chip is designed for car radio applications and can drive very low impedance loads. It features a MULTIWATT package that allows for a simple mounting system with no electrical isolation between the package and the heatsink, resulting in space and cost savings.
The TDA2004A is a class‑B dual audio power amplifier in a MULTIWATT® package designed for car‑radio applications. It delivers up to 10 W per channel into low‑impedance loads, provides low distortion and low noise, and includes built‑in protection against output short‑circuit, inductive loads, voltage surges, open ground and thermal overload.
The device operates from a supply voltage of 8‑18 V (up to 28 V tolerated) and can source up to 3.5 A continuous output current. Electrical characteristics such as output power, quiescent current and voltage gain are detailed in the datasheet, and the package dimensions and mechanical data are provided for PCB layout. Built‑in protection circuits and thermal shutdown ensure reliable operation under harsh automotive conditions.
| Power Dissipation (Tcase = 60 °C) | 30 W |
|---|---|
| Maximum Operating DC Voltage | 18 V |
The TDA2004A can withstand an accidental short‑circuit from the output to ground caused by a wrong connection during normal operation.
The maximum operating supply voltage is 18 V, although the device can tolerate up to 28 V without damage.
The quiescent output voltage is specified as 14.4 V.