E-TDA7396 Datasheet, PDF (2/11 Pages) STMicroelectronics – 45W/2W BRIDGE CAR RADIO AMPLIFIER WITH DIAGNOSTIC FACILITY

TDA7396
DESCRIPTION
The TDA7396 is a BRIDGE class AB audio power
amplifier especially intended for car radio High
Power applications.
The 2Ω power capability together with the possi-
bility to operate either in DIFFERENTIAL INPUT
MODE or SINGLE ENDED INPUT MODE makes
it suitable for boosters and high end car radio ap-
Figure 2: Block Diagram
V_CC1
3
V_CC2
9
plications.
The exclusive fully complementary output stage
and the internally fixed gain configuration drop the
external component count.
The on board clipping detector allows easy imple-
mentation of gain compression systems.
The diagnostics facility allows to detect any mis-
takes during car radio set assembly and wiring in
the car.
+
-
STANDBY THRESHOLD
1
IN-
ICM
2
IN+
REFERENCES
10K
COMMON
500Ω _MODE
-
500Ω
-
gm
+
+
V_CC/2
10K
SHORT CIRCUIT
DUMP & THERMAL
PROTECTION
POWER AMP
LTS
V=f
(Tj)
POWER AMP
THD
DETECT
5
OUT-
LTS
4
DISABLE
DIAGN
CD
7
OUT+
+
PROGRAMMABLE
CURRENT CIRCUIT
-
MUTE THRESHOLD 11
MUTE
10
SYNC
6
GND
PIN CONNECTION (Top view)
8
STANDBY
DIAGNOSTIC
CIRCUIT
D94AU107
11
MUTE
10
SYNC
9
+VS
8
STAND-BY
7
OUT+
6
GND
5
OUT-
4
CD-DIA (CLIPPING DETECTOR - DIAG.)
3
+VS
2
IN+
1
IN-
TAB CONNECTED TO PIN 6
D93AU003A
THERMAL DATA
Symbol
R_{th j-case}
Description
Thermal Resistance Junction-case
2/11
Value
Max
1.5
Unit
°C/W