STMicroelectronics TDA7577BLV
The TDA7577BLV is a new MOSFET dual bridge amplifier specially intended for car radio applications. 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). This device is also equipped with a full diagnostic array that communicates the status of each speaker through the I2C bus.- Min Voltage : 6V
- Max Voltage : 18V
- Channels : 2
- Max Operating Temp : 105°C
- Min Operating Temp : -40°C
Source:
Octopart
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 I2C 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 I2C)
● 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
DESCRIPTION
Thanks to the DMOS output stage the TDA7577BLV has a very low distortion allowing a clear powerful sound, together with high output power capability. Moreover it is compliant to the recent OEM specifications thanks to the capability to work down to 6 V ('start-stop' compatibility).