Overview
The TDA7850 is a breakthrough MOSFET technology class AB audio power amplifier designed by STMicroelectronics for high-power car radio applications. It is packaged in the Flexiwatt 25 format and features a fully complementary P-Channel/N-Channel output structure. This design allows for a rail-to-rail output voltage swing, combined with high output current and minimized saturation losses, resulting in unparalleled distortion performances in the car-radio field.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Min | 8.0 V |
| Supply Voltage Max | 18.0 V |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 105°C |
| Output Power (4 Ω, 1 kHz, 10%) | 4 x 30 W @ 14.4 V |
| Output Power (2 Ω, 1 kHz, 10%) | 4 x 55 W @ 14.4 V |
| Maximum Output Power (4 Ω) | 4 x 50 W |
| Maximum Output Power (2 Ω) | 4 x 80 W |
| Gain | Internally fixed (26 dB) |
| Package | FLEXIWATT 25 HB |
| RoHS Compliance | Ecopack2 |
| Grade | Automotive |
Key Features
- High output power capability: 4 x 50 W/4 Ω max, 4 x 80 W/2 Ω max.
- MOSFET output power stage.
- Excellent 2 Ω driving capability.
- Hi-Fi class distortion.
- Low output noise.
- ST-BY function and mute function.
- Automute at minimum supply voltage detection.
- Low external component count: internally fixed gain, no external compensation, no bootstrap capacitors.
- Onboard 0.35 A high side driver.
- Protections: output short circuit, very inductive loads, overrating chip temperature with soft thermal limiter, output DC offset detection, load dump voltage, fortuitous open ground, reversed battery, and ESD protection.
Applications
The TDA7850 is specifically designed for high-power car radio applications, offering superior performance and reliability in automotive audio systems. Its robust design and comprehensive protection features make it an ideal choice for demanding automotive environments.
Q & A
- What is the TDA7850? The TDA7850 is a class AB audio power amplifier using MOSFET technology, designed for high-power car radio applications.
- What is the maximum output power of the TDA7850? The maximum output power is 4 x 50 W/4 Ω and 4 x 80 W/2 Ω.
- What are the key features of the TDA7850? Key features include high output power capability, MOSFET output power stage, excellent 2 Ω driving capability, Hi-Fi class distortion, low output noise, and various protection mechanisms.
- What is the operating temperature range of the TDA7850? The operating temperature range is from -40°C to 105°C.
- Does the TDA7850 have built-in protection features? Yes, it includes protections such as output short circuit, overrating chip temperature, output DC offset detection, load dump voltage, and more.
- What is the package type of the TDA7850? The TDA7850 is packaged in the Flexiwatt 25 format.
- Is the TDA7850 RoHS compliant? Yes, the TDA7850 is RoHS compliant with an Ecopack2 rating.
- What is the gain of the TDA7850? The gain is internally fixed at 26 dB.
- Does the TDA7850 require external compensation or bootstrap capacitors? No, it does not require external compensation or bootstrap capacitors.
- What are the supply voltage limits for the TDA7850? The supply voltage range is from 8.0 V to 18.0 V.
