TDA3681A datasheet(11/22 Pages) NXP

Part #	TDA3681A

Description	Multiple voltage regulator with switch and ignition buffer

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Manufacturer	NXP [NXP Semiconductors]

Direct Link	http://www.nxp.com

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11 / 22 page

2003 Aug 29

11

Philips Semiconductors

Product speciﬁcation

Multiple voltage regulator with

switch and ignition buffer

TDA3681A

Reset and hold buffer

Isink(L)

LOW-level sink current

VRES ≤ 0.8 V; VHOLD ≤ 0.8 V

2

−−

mA

ILO

output leakage current

VHOLD =5V

−

0.1

5

µA

Isource(H)

HIGH-level source

current

VRES = 5 V

240

400

900

µA

tr

rise time

note 4

−

750

µs

tf

fall time

note 4

−

150

µs

Reset delay

Ich

reset delay capacitor

charge current

VCRES =0V

2

4

8

µA

Idch

reset delay capacitor

discharge current

VCRES =3V;

VP1 =VP2 = 4.3 V

1.0

1.6

−

mA

Vth(r)(RES)

rising voltage threshold

reset signal

2.5

3.0

3.5

V

Vth(f)(RES)

falling voltage threshold

reset signal

1.0

1.2

1.4

V

td(RES)

delay reset signal

CCRES = 47 nF; note 5

20

35

70

ms

td(SW)

delay power switch

foldback protection

CCRES = 47 nF; note 6

8

17.6

40

ms

Regulator 1 (IREG1 = 5 mA; unless otherwise speciﬁed)

Vo(off)

output voltage off

−

1

400

mV

Vo(REG1)

output voltage

1 mA

≤ IREG1 ≤ 600 mA

8.0

8.5

9.0

V

9.5 V

≤ V

P1 ≤ 18 V

8.0

8.5

9.0

V

∆V

line

line regulation

9.5 V

≤ VP1 ≤ 18 V

−

275

mV

∆V

load

load regulation

1 mA

≤ IREG1 ≤ 600 mA

−

20

85

mV

Iq

quiescent current

IREG1 = 600 mA

−

25

60

mA

SVRR

supply voltage ripple

rejection

fi = 3 kHz; Vi = 2 V (p-p)

60

70

−

dB

Vdrop(REG1)

drop-out voltage

IREG1 = 550 mA;

VP1 = 8.55 V; note 7

−

0.4

0.7

V

Im(REG1)

current limit

VREG1 > 7 V; note 8

0.65

1.2

−

A

Isc(REG1)

short-circuit current

RL ≤ 0.5 Ω; note 9

250

800

−

mA

Regulator 2 (IREG2 = 5 mA; unless otherwise speciﬁed)

Vo(REG2)

output voltage

0.5 mA

≤ IREG2 ≤ 300 mA

4.75

5.0

5.25

V

7V

≤ VP1 ≤ 18 V

4.75

5.0

5.25

V

18 V

≤ VP1 ≤ 50 V;

IREG2 ≤ 150 mA

4.75

5.0

5.25

V

∆Vline

line regulation

6 V

≤ VP1 ≤ 18 V

−

250

mV

6V

≤ V

P1 ≤ 50 V

−

15

75

mV

∆Vload

load regulation

1 mA

≤ IREG2 ≤ 150 mA

−

20

50

mV

1mA

≤ IREG2 ≤ 300 mA

−−

100

mV

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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TDA3681A Datasheet(PDF) 11 Page - NXP Semiconductors

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