TDA7377
2 x 30W DUAL/QUAD POWER AMPLIFIER FOR CAR RADIO
HIGH OUTPUT POWER CAPABILITY:
2 x
35W
max./4Ω
2 x 30W/4
Ω
EIAJ
2 x 30W/4
Ω
EIAJ
2
x
20W/4Ω @14.4V, 1KHz, 10%
4
x
6W/4Ω
@14.4V, 1KHz, 10%
4
x
10W/2Ω @14.4V, 1KHz, 10%
MINIMUM
EXTERNAL
COMPONENTS
COUNT:
– NO BOOTSTRAP CAPACITORS
– NO BOUCHEROT CELLS
– INTERNALLY FIXED GAIN (26dB BTL)
ST-BY FUNCTION (CMOS COMPATIBLE)
NOAUDIBLE POPDURING ST-BYOPERATIONS
DIAGNOSTICS FACILITY FOR:
– CLIPPING
– OUT TO GND SHORT
– OUT TO V
S
SHORT
– SOFT SHORT AT TURN-ON
– THERMAL SHUTDOWN PROXIMITY
Protections:
OUPUT AC/DC SHORT CIRCUIT
BLOCK DIAGRAM
MULTIWATT15V
MULTIWATT15H
ORDERING NUMBERS:
TDA7377V
TDA7377H
– TO GND
– TO V
S
– ACROSS THE LOAD
SOFT SHORT AT TURN-ON
OVERRATING CHIP TEMPERATURE WITH
SOFT THERMAL LIMITER
LOAD DUMP VOLTAGE SURGE
VERY INDUCTIVE LOADS
FORTUITOUS OPEN GND
REVERSED BATTERY
ESD
DIAGNOSTICS
September 1998
1/10
STMICROELECTRONICS [ STMICROELECTRONICS ]
