Application Information - Philips TDA8591J Datasheet

Philips Semiconductors
4 × 44 W into 4 Ω or 4 × 75 W into 2 Ω
quad BTL car radio power amplifier

14 APPLICATION INFORMATION

handbook, full pagewidth
V in1
V in2
V in3
V in4
standby
mute
from
microcontroller
fast mute
(1) Not needed with single-pin mute control.
2002 Jan 14
V P1
1
220 nF
R s
IN1
10
220 nF
R s
IN2
12
V P
CIN 22
100 µF
(6.3 V)
SGND 2
220 nF
R s
IN3 16
220 nF
R s
IN4 18
20
STBY
INTERFACE
MUTE/ON 8
OFFSET
DETECTION
(1)
2.2
µF
(10 V)
Fig.33 Quad BTL application without offset detection circuit.
100 nF
V P2 V P3
13 15
26 dB
26 dB
TDA8591J
26 dB
26 dB
4 7 21 24
PGND1 PGND2 PGND3 PGND4
25
Preliminary specification
V P
2200 µF
(16 V)
OUT1−
3
OUT1+
5
OUT2+
9
OUT2−
11
14 CP
CHARGE
PUMP
220 nF
OUT3+
19
OUT3−
17
OUT4−
25
OUT4+
23
6 DIAG
DIAGNOSTIC
26 OFFCAP
27
GNDHS
MGW452
TDA8591J
22 nF
2 or 4 Ω
22 nF
22 nF
2 or 4 Ω
22 nF
22 nF
2 or 4 Ω
22 nF
22 nF
2 or 4 Ω
22 nF
to microcontroller