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TDA3616

Multiple voltage regulator with battery detection

Philips Electronics 

Philips Semiconductors

Multiple voltage regulator with battery

detection

Objective specification

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

Supply

VP

Iq

supply voltage

operating

jump start

load dump protection

quiescent supply current

Regulator

Vo

output voltage

Vdrop

drop-out voltage

CONDITIONS

MIN. TYP. MAX. UNIT

regulator on

5.6 14.4 25

V

t ≤ 10 minutes

−

−

30

V

t ≤ 50 ms; tr ≥ 2.5 ms

standby mode

−

−

50

V

−

95

125 µA

standby mode; Tamb = 25 °C

−

95

120 µA

0.5 mA ≤ IREG ≤ 150 mA;

4.8 5.0

7 V ≤ VP ≤ 18 V; Tamb = 25 °C

0.5 mA ≤ IREG ≤ 150 mA;

7 V ≤ VP ≤ 18 V

4.75 5.0

IREG = 30 mA;

18 V ≤ VP ≤ 50 V; load dump

4.75 5.0

IREG = 150 mA; VP = 5 V;

Tamb = 25 °C

−

0.6

5.2 V

5.25 V

5.25 V

1.0 V

2000 Jan 14

2

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