TDA3681TH PHILIPS [NXP Semiconductors], TDA3681TH Datasheet - Page 4

• Manufacturer Part Number: TDA3681TH
• Description: Multiple voltage regulator with switch and ignition buffer
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
BLOCK DIAGRAMS
2002 Apr 10
handbook, full pagewidth
Multiple voltage regulator with switch and
ignition buffer
ENSW
C RES
IGN IN
EN1/3
V P1
EN4
V P2
(14.4 V)
11
10
8
5
17
3
9
Fig.1 Block diagram of TDA3681J and TDA3681JR.
BACKUP CONTROL
BACKUP SWITCH
POWER SWITCH
&
&
&
&
OR
4
IGNITION BUFFER
13
GND
&
TDA3681JR
REGULATOR 2
REGULATOR 4
REGULATOR 3
REGULATOR 1
TDA3681J
TEMPERATURE
PROTECTION
LOAD DUMP
MGL902
16
14
15
12
4
2
1
7
6
(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
HOLD
RES
IGN OUT
TDA3681