Features
 High output power capability:
– 4 x 52 W/4 Ω max.
– 4 x 30 W/4 Ω @ 14.4 V, 1 kHz, 10 %
– 4 x 85 W/2 Ω max.
– 4 x 55 W/2 Ω @ 14.4V, 1 kHz, 10 %
 MOSFET output power stage
 Capable to operate in low voltage conditions
(e.g.: “Start - Stop”)
 Excellent GSM noise immunity
 Excellent 2 Ω driving capability
 Hi-Fi class distortion
 Low output noise
 Standby function and mute function
 Automute at min. supply voltage detection
 Low external component count:
– Internally fixed gain (26 dB)
– No external compensation
– No bootstrap capacitors
 On board 0.4 A high side driver
 Protections:
– Output short circuit to GND, to Vs, across
the load
– Very inductive loads
– Overrating chip temperature with soft
thermal limiter
– Output DC offset detection
– Load dump voltage
– Fortuitous open GND
– Reversed battery
– ESD

Description
The STPA003 is a MOSFET class AB audio
power amplifier, designed for high-power car
radio. In addition to the outstanding output current
capability and distortion performance, the
STPA003 is extremely robust against several
kinds of fortuitous misconnection.
It is compliant to the most recent OEM
specifications for low voltage operation (the so
called 'start-stop' battery profile during engine
stop).
It includes a DC offset detector and, in
Flexiwatt27 package, a high side driver or a
clipping detector.