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PDF TDA3681 Data sheet ( Hoja de datos )
| Número de pieza | TDA3681 | |
| Descripción | Multiple voltage regulator with switch and ignition buffer | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
TDA3681
Multiple voltage regulator with
switch and ignition buffer
Product specification
Supersedes data of 2001 Aug 24
2002 Apr 10
1 page  
Philips Semiconductors
Multiple voltage regulator with switch and
ignition buffer
Product specification
TDA3681
handbook, full pagewidth
(14.4 V) 14
VP1
ENSW
8
VP2
EN4
HEATTAB
n.c.
n.c.
20
6
11
15
18
EN1/3
7
CRES
IGNIN
5
2
POWER SWITCH
(14 V/
16 3 A)
SW
TEMPERATURE
& LOAD DUMP
PROTECTION
BACKUP SWITCH
BACKUP CONTROL
REGULATOR 2
& REGULATOR 4
(14 V/
13 100 mA)
BU
(5 V/
12 300 mA)
REG2
(3.3 V/
1 1 A)
REG4
(5 V/
19 1400 mA)
& REGULATOR 3
REG3
TDA3681TH
(8.5 V/
17 600 mA)
& REGULATOR 1
REG1
OR
&
9
+
4
HOLD
RES
IGNITION BUFFER
10
GND
3
MGU353
IGNOUT
2002 Apr 10
Fig.2 Block diagram of TDA3681TH.
5
5 Page 
Philips Semiconductors
Multiple voltage regulator with switch and
ignition buffer
Product specification
TDA3681
handbook, full pagewidth
VP1 = VP2
18 V
8.9 V
7.0 V
4.0 V
enable ≥1.8 V
regulator 1/3 1.3 V
8.5 V
regulator 1
0V
5.0 V
regulator 3
0V
enable >1.8 V
regulator 4
<1.3 V
3.3 V
regulator 4
0V
16.9 V
VP 7.0 V
4.0 V
enable
power
switch
power
switch
output
>1.8 V
<1.3 V
16 V
0V
load dump
VP and enable Schmitt trigger
load dump
Power switch behaviour
MGL906
2002 Apr 10
Fig.7 Timing diagram of regulators and power switch.
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TDA3681.PDF ] | |
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