TDA3616T datasheet(2/20 Pages) PHILIPS

Numer części	TDA3616T

Szczegółowy opis	Multiple voltage regulator with battery detection

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Producent	PHILIPS [NXP Semiconductors]

Strona internetowa	http://www.nxp.com

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2000 Jan 14

2

Philips Semiconductors

Objective speciﬁcation

Multiple voltage regulator with battery

detection

TDA3616

FEATURES

General

• One VP-state controlled regulator

• Battery detection circuit

• Regulator, reset and battery outputs operate during load

dump

• Supply voltage range from −18 to +50 V

• Low quiescent current (battery detection switched off)

• High ripple rejection

• Dual reset output

• Backup circuit

• Adjustable reset delay timer.

Protections

• Reverse polarity safe (down to −18 V without high

reverse current)

• Able to withstand voltages up to 18 V at the output

(supply line may be short-circuited)

• ESD protected on all pins

• Load dump protection

• Foldback current limit protection for regulator

• The regulator output is DC short-circuited safe to ground

and VP.

GENERAL DESCRIPTION

The TDA3616 is a low power voltage regulator. It contains

the following:

• One fixed voltage regulator with a foldback current

protection, intended to supply a microprocessor, that

also operates during load dump

• A provision for use of a reserve supply capacitor that will

hold enough energy for the regulator to allow a

microcontroller to prepare for loss of supply voltage

• Reset signals which can be used to interface with the

microprocessor

• A supply pin that can withstand load dump pulses and

negative supply voltages

• Defined start-up behaviour; regulator will be switched on

at a supply voltage higher than 7.5 V and off when the

output voltage of the regulator drops below 2.4 V.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Supply

VP

supply voltage

operating

regulator on

5.6

14.4

25

V

jump start

t

≤ 10 minutes

−−

30

V

load dump protection

t

≤ 50 ms; t

r ≥ 2.5 ms

−−

50

V

Iq

quiescent supply current

standby mode

−

95

125

µA

standby mode; Tamb =25 °C

−

95

120

µA

Regulator

Vo

output voltage

0.5 mA

≤ IREG ≤ 150 mA;

7V

≤ VP ≤ 18 V; Tamb =25 °C

4.8

5.0

5.2

V

0.5 mA

≤ I

REG ≤ 150 mA;

7V

≤ VP ≤ 18 V

4.75

5.0

5.25

V

IREG = 30 mA;

18 V

≤ VP ≤ 50 V; load dump

4.75

5.0

5.25

V

Vdrop

drop-out voltage

IREG = 150 mA; VP =5V;

Tamb =25 °C

−

0.6

1.0

V

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