Philips Semiconductors
Product specification
Multiple voltage regulator with switch and
ignition buffer
TDA3681
Pin description of TDA3681TH
Note
1. The pin is used for final test purposes. In the
application it should be connected directly to ground.
SYMBOL
PIN
DESCRIPTION
REG4
1
regulator 4 output
IGN
IN
2
ignition input
IGN
OUT
3
ignition output (active HIGH)
RES
4
reset output (active LOW)
C
RES
5
reset delay capacitor
EN4
6
enable input for regulator 4
EN1/3
7
enable input for regulators 1 and 3
ENSW
8
enable input for power switch
HOLD
9
hold output (active LOW)
GND
10
ground
HEATTAB
11
heat tab connection; note 1
REG2
12
regulator 2 output
BU
13
backup switch output
V
P1
14
supply voltage
n.c.
15
not connected
SW
16
power switch output
REG1
17
regulator 1 output
n.c.
18
not connected
REG3
19
regulator 3 output
V
P2
20
second supply voltage
handbook, halfpage
TDA3681TH
MGU329
1
2
3
4
5
6
7
8
9
10
REG4
IGNIN
IGNOUT
RES
CRES
EN4
EN1/3
ENSW
HOLD
GND
VP2
REG3
n.c.
REG1
SW
n.c.
VP1
BU
REG2
HEATTAB
20
19
18
17
16
15
14
13
12
11
Fig.4 Pin configuration for TDA3681TH.
MS-8
85
Содержание MS-8
Страница 3: ...MS 8 PACKAGING LITHIUM COIN BATTERY 3VDC CR2032 MS 8 2 ...
Страница 31: ...MS 8 30 Top layer ...
Страница 32: ...MS 8 31 Power layer ...
Страница 33: ...MS 8 32 Inner l3 layer ...
Страница 34: ...MS 8 33 Inner l4 layer ...
Страница 35: ...MS 8 34 Bottom layer ...
Страница 36: ...MS 8 35 ...
Страница 37: ...MS 8 36 ...
Страница 93: ...MS 8 92 ...