tda3681a NXP Semiconductors, tda3681a Datasheet - Page 16
tda3681a
Manufacturer Part Number
tda3681a
Description
Tda3681a Multiple Voltage Regulator With Switch And Ignition Buffer
Manufacturer
NXP Semiconductors
Datasheet
1.TDA3681A.pdf
(22 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
tda3681aTH
Manufacturer:
MITSUBISHI
Quantity:
22
Part Number:
tda3681aTH
Manufacturer:
HSOP20
Quantity:
20 000
Philips Semiconductors
TEST AND APPLICATION INFORMATION
Test information
2003 Aug 29
handbook, full pagewidth
Multiple voltage regulator with
switch and ignition buffer
(1) A minimum capacitor of 220 nF on the supply lines V
(2) A minimum capacitor of 1 F for backup supply is required for stability.
(3) These capacitors represent the typical input capacitance of CMOS logic connected to the reset and hold outputs.
V ENSW
V EN1/3
V IGNIN
V EN4
V P1
V P2
V BU
10 k
R6
enable input power switch
enable input regulator 1/3
220 nF
220 nF
enable input regulator 4
(2)
C1
C7
supply voltage 2
supply voltage 1
C10
100 F
C11
1 nF
C8
47 nF
backup switch
(1)
(1)
ignition input
reset delay
capacitor
output
heat tab
P1
20
5
13
2
14
8
7
6
and V
11
Fig.8 Test circuit.
TDA3681A
P2
is required for stability.
10
ground
16
16
12
17
19
1
4
9
3
regulator 4
output
reset
output
hold output
ignition output
regulator 2
output
regulator 1
output
regulator 3
output
power switch output
R3
10 k
C2
10 F
C3
10 F
C4
10 F
C5
10 F
C6
10 F
8.5 V
3.3 V
5 V
5 V
(3)
(3)
C9
50 pF
C12
50 pF
MGU568
Product specification
TDA3681A
R L(SW)
12 k
R L(REG2)
5 k
R L(REG1)
10 k
R L(REG3)
5 k
R L(REG4)
5 k