TDA7575PD Datasheet, PDF (1/17 Pages) STMicroelectronics – MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER WITH INTEGRATED DIGITAL DIAGNOSTICS

TDA7575PD
MULTIFUNCTION DUAL BRIDGE POWER AMPLIFIER
WITH INTEGRATED DIGITAL DIAGNOSTICS
■ DMOS POWER OUTPUT
■ NON-SWITCHING HI-EFFICIENCY
■ SINGLE-CHANNEL 1Ω DRIVING CAPABILITY
■ HIGH OUTPUT POWER CAPABILITY 2x28W/
4Ω @ 14.4V, 1KHZ, 10% THD, 2x40W/4Ω EIAJ
■ MAX. OUTPUT POWER 2x75W/2Ω, 1x150W/1Ω
■ 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
■ POSSIBILITY TO DISABLE THE I2C
■ DIFFERENTAL INPUTS
■ FULL FAULT PROTECTION
■ DC OFFSET DETECTION
■ TWO INDEPENDENT SHORT CIRCUIT
PROTECTIONS
■ CLIPPING DETECTOR PIN WITH
SELECTABLE THRESHOLD (2%/10%)
■ ST-BY/MUTE PINS
DESCRIPTION
The TDA7575PD is a new BCD technology DUAL
BRIDGE type of car radio amplifier in PowerSO36
package specially intended for car radio applications.
Thanks to the DMOS output stage the TDA7575PD
MULTIPOWER BCD TECHNOLOGY
MOSFET OUTPUT POWER STAGE
PowerSO36 (Slug up)
ORDERING NUMBER: TDA7575PD
has a very low distortion allowing a clear powerful
sound. Among the features, its superior efficiency
performance coming from the internal exclusive
structure, makes it the most suitable device to simpli-
fy the thermal management in high power sets.The
dissipated output power under average listening con-
dition is in fact reduced up to 50% when compared to
the level provided by conventional class AB solu-
tions.
This device is equipped with a full diagnostic array
that communicates the status of each speaker
through the I²C bus. The TDA7575PD has also the
possibility of driving loads down to 1Ω paralleling the
outputs into a single channel. It is also possible to dis-
able the I²C and control the TDA7575PD 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
March 2004
SVR ST-BY/HE S_GND PW_GND TAB 1Ω MUTE
D01AU1269
1/17