TDA3681 データシートの表示（PDF） - NXP Semiconductors.

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TDA3681

Multiple voltage regulator with switch and ignition buffer

NXP Semiconductors. 

Philips Semiconductors

Multiple voltage regulator with switch and

ignition buffer

TEST AND APPLICATION INFORMATION

Test information

Product specification

TDA3681

VP1

VENSW

VEN1/3

VEN4

VP2

VBU

VIGNIN

C1

220 nF

supply voltage 1

17

C13

(1)

1000 µF

enable input power switch

11

enable input regulator 1/3

10

enable input regulator 4

9

power switch output

16

C15

100 nF

regulator 2

output

15

C16

100 nF

regulator 1

output

1

C17

100 nF

regulator 3

output

2

C18

100 nF

C7

220 nF

supply voltage 2

3

C14

(1)

1000 µF

TDA3681J

TDA3681JR

regulator 4

output

4

C19

100 nF

C2

10 µF

5V

C3

10 µF

8.5 V

C4

10 µF

5V

C5

10 µF

3.3 V

C6

10 µF

reset delay

capacitor

8

C8

47 nF

reset

output

7

R6

10 kΩ

backup

14

(2) C10

100 µF

ignition input

5

C11

1 nF

hold output

12

ignition output

6

13

ground

(3)

R3

10 kΩ

C9

50 pF

(3) C12

50 pF

mgl911

RL(SW)

12 kΩ

RL(REG2)

5 kΩ

RL(REG1)

10 kΩ

RL(REG3)

5 kΩ

RL(REG4)

5 kΩ

(1) A minimum capacitor of 220 nF on the supply lines VP1 and VP2 is required for stability.

(2) A minimum capacitor of 1 µF for backup supply is required for stability.

(3) Capacitor represents the typical input capacitance of CMOS logic connected to the reset and hold outputs.

Fig.10 Test circuit of TDA3681J and TDA3681JR.

2004 Mar 31

19

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