tda3681a NXP Semiconductors, tda3681a Datasheet - Page 4

• Manufacturer Part Number: tda3681a
• Description: Tda3681a Multiple Voltage Regulator With Switch And Ignition Buffer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
2003 Aug 29
handbook, full pagewidth
Multiple voltage regulator with
switch and ignition buffer
HEATTAB
ENSW
C RES
IGN IN
EN1/3
V P1
EN4
V P2
n.c.
n.c.
(14.4 V)
(14.4 V)
11
15
18
8
7
5
2
14
20
6
Fig.1 Block diagram.
BACKUP CONTROL
BACKUP SWITCH
POWER SWITCH
&
&
&
&
4
IGNITION BUFFER
10
GND
REGULATOR 2
REGULATOR 4
REGULATOR 3
REGULATOR 1
TDA3681A
TEMPERATURE
PROTECTION
LOAD DUMP
MGU561
16
13
12
19
17
1
9
4
3
(3.3 V/
1 A)
(8.5 V/
600 mA)
(14 V/
100 mA)
(5 V/
300 mA)
(5 V/
1400 mA)
(14 V/
3 A)
Product specification
SW
BU
REG2
REG4
REG3
REG1
RES
IGN OUT
HOLD
TDA3681A