TDA7802

Low voltage operation, digital input (I2S), improved high efficiency (class SB-I) quad BTL output power amplifier with full I2C diagnostics

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The TDA7802 is a single chip quad bridge amplifier in advanced BCD technology integrating: a full D/A converter, digital input for direct connection to I²S (or TDM) and powerful MOSFET output stages.

The integrated D/A converter allows the performance to reach an outstanding 115 dB S/N ratio with more than 110 dB of dynamic range.

Moreover the TDA7802 integrates an innovative high efficiency concept, optimized also for uncorrelated music signals, that makes it the most suitable device to simplify the thermal management in high power sets.

Thanks to this concept, the dissipated output power under average listening conditions can be reduced up to 50% when compared to the conventional class AB solutions.

The TDA7802 integrates also a programmable PLL that is able to lock at the input frequencies of 64*Fs and 50*Fs for all the input configurations.

The device is equipped with a full diagnostics array that communicates the status of each speaker through the I²C bus. The same I²C bus allows to control several configurations of the device.

The TDA7802 is able to play music down to 6 V supply voltage - so it is compatible with the so called 'start stop' battery profile recently adopted by several car makers (thus reducing the fuel consumption and and the impact over the environment).

Key Features

24-bit resolution
110 dB dynamic range (A-weighted)
SB-I (SB - improved) high efficiency operation the highest ’non - class D’ efficiency
1 Ohm driving capability (only in PowerSO36 package)
- High output power capability:4 x 28 W 4Ω@ 14.4 V, 1 kHz, THD = 10 %
- Max output power: 4 x 72 W 2 Ω
Flexible mode control:
- Full I²C bus driving 1.8 V/3.3 V) with four addresses selectable (only for PowerSO36 package option)
- Independent front/rear play/ mute
- Four selectable gains for very-low noise line-out function
- Digital diagnostic with DC and AC load detections
Optional H/W control (no I²C bus)
Start-stop compatibility (operation down to 6 V)
Sample rates: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
Flexible serial data port (1.8 V / 3.3 V):
- I²S standard, TDM 4Ch, TDM 8Ch, TDM 16Ch
Offset detector (play or mute mode)
Independent front/rear clipping detector
Programmable diagnostic pin
CMOS compatible enable pin
Thermal protection
Qualification in accordance to AEC Q100 rev. G standard

Resources

Technical Documentation

Product Specifications

	Description	Version	Size
	DB1995: High efficiency digital input quad power amplifier with built-in diagnostics features, 'start stop' compatible	4.0	319 KB

Publications and Collaterals

Flyers

Description	Version	Size
Car-audio power amplifiers	1.0	1 MB
Intelligent analog power amplifiers	1.0	837 KB
Intelligent analog power amplifiers	1.0	715 KB

Selection Guides

	Description	Version	Size
	Power amplifiers and voltage regulators		750 KB

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Sample & Buy

Part Number	Marketing Status	Quantity	Unit Price (US$) *	Package	Packing Type	ECCN (US)	Country of Origin	More info	Order from ST	Order from Distributors
TDA7802PD	Active : Product is in volume production	1000	6.3	PowerSO 36	Tube	EAR99	ITALY	MORE INFO		No availability reported, please contact our Sales office
TDA7802PDTR	Active : Product is in volume production	1000	6.3	PowerSO 36	Tape And Reel	EAR99	MALAYSIA	MORE INFO		No availability reported, please contact our Sales office
TDA7802	Active : Product is in volume production	1000	6.3	FLEXIWATT FM2 27	Tube	EAR99	CHINA	MORE INFO	Buy Direct Add to cart	DISTRIBUTOR AVAILABILITY
TDA7802SMTR	Active : Product is in volume production	1000	6.3	OUTLINE FW 27 SMD	Tape And Reel	EAR99	CHINA	MORE INFO		No availability reported, please contact our Sales office

(*) 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

Quality & Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade
TDA7802PD	Active	PowerSO 36	Automotive	Ecopack2
TDA7802PDTR	Active	PowerSO 36	Automotive	Ecopack2
TDA7802	Active	FLEXIWATT FM2 27	Automotive	Ecopack2
TDA7802SMTR	Active	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.