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The TDA7850A is a breakthrough MOSFET technology class AB audio power amplifier in Flexiwatt27 package designed for high power car radio. The fully complementary P-Channel/N-Channel output structure allows a rail to rail output voltage swing which, combined with high output current and minimized saturation losses sets new power references in the car-radio field, with unparalleled distortion performances.
The TDA7850A integrates a DC offset detector.
Key Features
- High output power capability:
- 4 x 50 W/4 Ω max.
- 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
- 4 x 80 W/2 Ω max.
- 4 x 55 W/2 Ω @ 14.4 V, 1 kHz, 10 %
- MOSFET output power stage
- Excellent 2 Ω driving capability
- Hi-fi class distortion
- Low output noise
- Standby function
- Mute function
- Automute at min. supply voltage detection
- Low external component count:
- Internally fixed gain (26 dB)
- No external compensation
- No bootstrap capacitors
- On board 0.35 A high side driver
- Protections:
- Output short circuit to GND, to Vs, across the load
- Very inductive loads
- Overrating chip temperature with soft thermal limiter
- Output DC offset detection
- Load dump voltage
- Fortuitous open gnd
- Reversed battery
- ESD
- High output power capability:
Featured Videos
Power amplifier system for automotive applications
All tools & software
All resources
Product Specifications (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 25 Sep 2020 |
25 Sep 2020
|
Technical Notes & Articles (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 13 Sep 2018 |
13 Sep 2018
|
Flyers (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 22 May 2018 |
22 May 2018
|
Selection Guides (1)
| Resource title | Latest update | |||
|---|---|---|---|---|
| 24 Mar 2020 |
24 Mar 2020
|
CAD/EDA Symbols, Footprints and Models
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| TDA7850A |
Active
|
FLEXIWATT FM2 27 | Automotive | Ecopack2 | |
| TDA7850AH |
Active
|
FLEXIWATT 27 HB | Automotive | Ecopack2 |
|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| TDA7850A | 3 distributors | Buy Direct |
Active
|
EAR99 | NEC | Tube | FLEXIWATT FM2 27 | -40 | 105 | CHINA | 4.9 / 1k | |
| TDA7850AH | No availability of distributors reported, please contact our sales office | Buy Direct |
Active
|
EAR99 | NEC | Tube | FLEXIWATT 27 HB | -40 | 105 | CHINA | 4.9 / 1k | |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors
