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The TDA7801 is a new BCD technology quad bridge amplifier for car audio applications.
Thanks to the BCD6 technology it is possible to integrate a high performance D/A converter together with powerful MOSFET outputs.
The possibility of having the D/A conversion on board allows the performance to reach an outstanding 115 dB S/N ratio with more than 105 dB of dynamic range.
This device is equipped with a full diagnostics array that communicates the status of each speaker through the I2C bus. The possibility to control the configuration and behavior of the device by means of the I2C bus makes TDA7801 a very flexible machine.Key Features
- Integrated 110 dB D/A conversion
- I2S digital input (3.3/1.8 V) with TDM option
- Selectable input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
- MOSFET power outputs
- High output power capability 4x28 W/ 4 Ω @ 14.4 V, 1 kHz, 10 % THD
- Max. output power 4x72 W/2 Ω
- Full I2C bus driving (3.3/5 V):
- Independent front/rear soft play/ mute
- Selectable gain (four levels) for very low noise line-out function
- I2C bus digital diagnostics (including DC and AC load detection)
- Two I2C bus addresses and 8-ch TDM mode (only in PowerSO package)
- Optional non I2C bus mode
- Offset detector (play or mute mode)
- Clipping detector (selectable level) and diagnostics pin
- CMOS compatible enable pin (3.3/5 V)
- Full fault protection
- Four independent short circuit protections
- Linear thermal protection (four thermal warnings)
- ESD protection
Sample & Buy
| Part Number | Marketing Status | Quantity | Budgetary Price (US$)* | Package | Packing Type | ECCN (US) | Country of Origin | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|
| TDA7801PD |
Active
|
1000 | 6.3 | PowerSO 36 | Tube | EAR99 | MALAYSIA | No availability of distributors reported, please contact our sales office | |
| TDA7801SMTR |
Target
|
- | - | OUTLINE FW 27 SMD | Tape And Reel | EAR99 | - | No availability of distributors reported, please contact our sales office | |
| TDA7801PDTR |
Active
|
1000 | 6.3 | PowerSO 36 | Tape And Reel | EAR99 | MALAYSIA | Check Availability | |
| TDA7801 |
Active
|
1000 | 5.8 | FLEXIWATT FM2 27 | Tube | EAR99 | CHINA | Check Availability | Buy now |
TDA7801PD
Marketing Status
ActiveQuantity
1000Unit Price (US$)
6.3*TDA7801SMTR
Marketing Status
TargetQuantity
-Unit Price (US$)
*TDA7801PDTR
Marketing Status
ActiveQuantity
1000Unit Price (US$)
6.3*(*) 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
Featured Videos
Power amplifier system for automotive applications
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| TDA7801 |
Active
|
FLEXIWATT FM2 27 | Automotive | Ecopack2 | |
| TDA7801PD |
Active
|
PowerSO 36 | Automotive | Ecopack2 |
|
| TDA7801PDTR |
Active
|
PowerSO 36 | Automotive | Ecopack2 | |
| TDA7801SMTR |
Target
|
OUTLINE FW 27 SMD | 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.
