JBL MS-8 - Page 84

2002 Apr 10 5
Philips Semiconductors Product specification
Multiple voltage regulator with switch and
ignition buffer
TDA3681
handbook, full pagewidth
MGU353
REGULATOR 2
REGULATOR 4
REGULATOR 1
16
13
4
+
TEMPERATURE
LOAD DUMP
PROTECTION
14
8
6
20
7
5
10
POWER SWITCH
BACKUP SWITCH
BACKUP CONTROL
&
&
&
&
OR
GND
(14.4 V)
TDA3681TH
RES
REG2
REG4
REG1
(14 V/
3 A)
(14 V/
100 mA)
(5 V/
300 mA)
(3.3 V/
1 A)
(8.5 V/
600 mA)
SW
V
P1
ENSW
EN4
11
HEATTAB
n.c.
n.c.
15
18
V
P2
EN1/3
C
RES
BU
HOLD
9
17
IGNITION BUFFER
2
IGN
OUT
IGN
IN
3
1
REGULATOR 3
&
REG3
(5 V/
1400 mA)
19
12
Fig.2 Block diagram of TDA3681TH.
MS-8
83