TDA7577BLV:Low voltage operation, high efficiency (class SB), intelligent, dual BTL output power amplifier with full I2C diagnostics including tweeter detection and hardware stand-by/mute

The TDA7577BLV is a new MOSFET dual bridge amplifier specially intended for car radio applications. Thanks to the DMOS output stage the TDA7577BLV has a very low distortion allowing a clear powerful sound, together with high output power capability.

It is a very flexible device capable to support the most demanding specifications in terms of power dissipation and battery transitions: its superior efficiency performance, coming from the internal exclusive structure, can reduce the dissipated output power up to the 50 % (when compared to conventional class AB solutions). Moreover it is compliant to the recent OEM specifications thanks to the capability to work down to 6 V ('start-stop' compatibility).

This device is also equipped with a full diagnostic array that communicates the status of each speaker through the I2C bus. TDA7577BLV can also drive 1 Ω loads (with parallel connection of the outputs).

It is possible also to exclude the I2C bus interface, controlling the device by means of the usual ST-BY and MUTE pins.

Key Features

  • MOSFET (DMOS) output power stage
  • High-efficiency (class SB)
  • Single-channel 1 Ω driving capability
    • 84 W undistorted power
  • High output power capability 2 x 28 W / 4 Ω @ 14.4 V, 1 kHz, 10 % THD
  • Max. output power 2 x 75 W / 2 Ω,1 x 150 W / 1 Ω
  • Full I2 C bus driving with 4 addresses
  • Low voltage (6 V) operation (i.e. 'start-stop')
  • Gain 16/26 dB
  • Full digital diagnostic (AC and DC loads)
  • Legacy mode (operation without I2 C)
  • Differential inputs
  • Fault detection through integrated diagnostics
  • DC offset detection
  • Two independent short circuit protections
  • Diagnostic on clipping detector with selectable threshold (2 % / 10 %)
  • Clipping detector pin
  • ST-BY and MUTE pins
  • ESD protection
  • Very robust against misconnections
Product Specifications
DescriptionVersionSize
DS9979: 2 x 75 W dual-bridge power amplifier with I2C complete diagnostics and "start-stop" profile (6 V operation)5.0812 KB
Flyers
DescriptionVersionSize
Intelligent analog power amplifiers837 KB
Selection Guides
DescriptionVersionSize
Power amplifiers and voltage regulators750 KB
Sample & Buy
Part NumberQuantityUnit Price (US$) *PackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)ECCN (EU)ECCN (US)Country of Origin
TDA7577BLVPD10005.39PowerSO 36Tube-105NECEAR99ITALY
TDA7577BLVPDTR10005.39PowerSO 36Tape And Reel-105NECEAR99MALAYSIA
TDA7577BLV10005.77FLEXIWATT FM2 27Tube-105NECEAR99CHINA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
TDA7577BLVPDPowerSO 36AutomotiveEcopack2new_ipc-wspc-1752a_md_a9zs-uk78bb6_signed.pdf
TDA7577BLVPDTRPowerSO 36AutomotiveEcopack2new_ipc-wspc-1752a_md_h9zs-uk78bb6_signed.pdf
TDA7577BLVFLEXIWATT FM2 27AutomotiveEcopack2new_ipc-wspc-1752a_md_h848-uk78bb6_signed.pdf
2 x 75 W dual-bridge power amplifier with I2C complete diagnostics and "start-stop" profile (6 V operation) TDA7577BLV
4 x 45 W power amplifier with full I2C diagnostics, SSR and low voltage operation TDA75616LV
ST SPI protocol L99PM72PXP
new_ipc-wspc-1752a_md_a9zs-uk78bb6_signed.pdf TDA7577BLV
new_ipc-wspc-1752a_md_h9zs-uk78bb6_signed.pdf TDA7577BLV
new_ipc-wspc-1752a_md_h848-uk78bb6_signed.pdf TDA7577BLV