TDA7575 Datasheet, PDF (1/17 Pages) STMicroelectronics – MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER WITH INTEGRATED DIGITAL DIAGNOSTICS

TDA7575
MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER
WITH INTEGRATED DIGITAL DIAGNOSTICS
s DMOS POWER OUTPUT
s NON-SWITCHING HI-EFFICIENCY
s SINGLE-CHANNEL 1Ω DRIVING CAPABILITY
s HIGH OUTPUT POWER CAPABILITY 2x28W/
4Ω @ 14.4V, 1KHZ, 10% THD, 2x40W/4Ω EIAJ
s MAX. OUTPUT POWER 2x75W/2Ω, 1x150W/1Ω
s SINGLE-CHANNEL 1Ω DRIVING CAPABILITY
– 84W UNDISTORTED POWER
– FULL I²C BUS DRIVING WITH 4 ADDRESS
POSSIBILITIES:
– ST-BY, PLAY/MUTE, GAIN 12/26dB, FULL
DIGITAL DIAGNOSTIC
s POSSIBILITY TO DISABLE THE I2C
s DIFFERENTAL INPUTS
s FULL FAULT PROTECTION
s DC OFFSET DETECTION
s TWO INDEPENDENT SHORT CIRCUIT
PROTECTIONS
s CLIPPING DETECTOR PIN WITH
SELECTABLE THRESHOLD (2%/10%)
s ST-BY/MUTE PINS
DESCRIPTION
The TDA7575 is a new BCD technology DUAL
BRIDGE type of car radio amplifier in PowerSO36
package specially intended for car radio applications.
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
PowerSO36 (Slug up)
ORDERING NUMBER: TDA7575
Thanks to the DMOS output stage the TDA7575 has
a very low distortion allowing a clear powerful sound.
Among the features, its superior efficiency perfor-
mance coming from the internal exclusive structure,
makes it the most suitable device to simplify the ther-
mal management in high power sets.The dissipated
output power under average listening condition is in
fact reduced up to 50% when compared to the level
provided by conventional class AB solutions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I²C bus. The TDA7575 has also the possi-
bility of driving loads down to 1Ω paralleling the outputs
into a single channel. It is also possible to disable the
I2C and control the TDA7575 by means of the usual ST-
BY and MUTE pins.
BLOCK DIAGRAM
ADDRESS
A B CLK DATA
V_S
VCC
CD_OUT
IN1+
IN1-
I²CBUS
IN2+
CLIP
DETECTOR
SHORT CIRCUIT
PROTECTION
OUT1+
OUT1-
OUT2+
IN2-
OUT2-
SHORT CIRCUIT
PROTECTION
I²C EN
SVR ST-BY/HE S_GND PW_GND TAB 1Ω MUTE
D01AU1269
October 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
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