Philips TDA3617J-N1 Datasheet

DATA SH EET

Preliminary specification
File under Integrated Circuits, IC01

1999 Jul 14

INTEGRATED CIRCUITS

TDA3617

Multiple voltage regulator

1999 Jul 14 2

Philips Semiconductors Preliminary specification

Multiple voltage regulator TDA3617

FEATURES
General

• Three VP-state controlled regulators
(regulators 1, 2 and 3)

• Very good stability and noise behaviour

• Separate controlpins for switching regulators 1, 2 and 3

• Supply voltage range from −18 to +50 V

• Low quiescent current (when regulators 1, 2 and 3 are

switched off)

• High ripple rejection

• Hold output for indicating regulator 1 and/or 2 and/or 3

out of regulation.

Protections

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

• Able to withstand voltages up to 18 V at the outputs
(supply line may be short circuited)

• ESD protection on all pins

• Thermal protection

• Load dump protection

• Foldback current limit protection for

regulators 1, 2 and 3

• DC short-circuit safe to ground and VP for all regulator
outputs.

GENERAL DESCRIPTION

The TDA3617J is a multiple output voltage regulator with
three independent regulators. It contains:

1. Three fixed voltage regulators with foldback current

protection (regulators 1, 2 and 3)

2. A supply pin that can withstand load dump pulses and

negative supply voltages

3. Independent enable inputs for regulators 1, 2 and 3

4. Local temperature protection for regulator 3

5. A hold output that can be used to interface with a

microprocessor. The hold indicates that the selected
output voltages are available and within their ranges.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

P

supply voltage

operating 9.5 14.4 17.5 V
jump start t ≤ 10 minutes −−30 V
load dump protection for 50 ms; t

r

≥ 2.5 ms −−50 V

I

q(tot)

total quiescent current standby mode − 540µA

T

j

junction temperature −−175 °C

Voltage regulators

V

REG1

output voltage regulator 1 1 mA ≤ I

REG1

≤ 1.3 A 8.55 9.0 9.45 V

V

REG2

output voltage regulator 2 1 mA ≤ I

REG2

≤ 600 mA;

VP= 14.4 V

4.75 5.0 5.25 V

V

REG3

output voltage regulator 3 1 mA ≤ I

REG3

≤ 300 mA 3.14 3.3 3.46 V

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA3617J DBS9P plastic DIL-bent-SIL power package; 9 leads (lead length 7.7 mm) SOT157-4

1999 Jul 14 3

Philips Semiconductors Preliminary specification

Multiple voltage regulator TDA3617

BLOCK DIAGRAM

handbook, full pagewidth

MGL589

TEMPERATURE

LOAD DUMP

PROTECTION

8

GND

(14.4 V)

TDA3617

REG1

REG2

REG3

(9 V/1.3 A)

(5 V/600 mA)

V

P

6

(3.3 V/300 mA)

5

7

4

REGULATOR 2

REGULATOR 3

HOLD

HOLD

1

&

&

REGULATOR 1

&

V

en3

9

V

en2

2

3

V

en1

Fig.1 Block diagram.

PINNING

SYMBOL PIN DESCRIPTION

V

en3

1 enable input regulator 3

V

en1

2 enable input regulator 1

V

P

3 supply voltage
REG1 4 regulator 1 output
REG3 5 regulator 3 output
REG2 6 regulator 2 output
HOLD 7 hold output
GND 8 ground
V

en2

9 enable input regulator 2

Fig.2 Pin configuration.

handbook, halfpage

TDA3617

MGL590

1
2
3
4
5
6
7
8
9

V

en3

V

en1

V

en2

V

P

REG1
REG3
REG2
HOLD

GND

1999 Jul 14 4

Philips Semiconductors Preliminary specification

Multiple voltage regulator TDA3617

FUNCTIONAL DESCRIPTION

The TDA3617J is a multiple output voltage regulator with
threeindependent switchable regulators. Whenthesupply
voltage(VP> 4.5 V)is available, regulators 1, 2 and 3 can
be operated by means of three independentenable inputs.

Schmitt trigger functions are included to switch the
regulators off at low battery voltage (VP< 4 V).
A hysteresis is included to avoid random switching.

All output pins are fully protected. The regulators are
protected against load dump (the regulators switch off at
supply voltages higher than 20 V) and short circuit
(foldback current protection).

The TDA3617J has a hold circuit which indicates when
oneofthe regulators is out-of-regulation. The holdfunction
is disabled when all the enable inputs are LOW
(TDA3617J in standby mode). The HOLD output (open
collector output) can be wired OR-ed with other hold
outputs of other regulator parts (e.g. TDA3618). When all
the regulators of the TDA3617J are disabled (switched
off), the HOLD output will be high ohmic. Because of this
feature, the hold will not influence the hold information
when wired OR-ed with other regulator parts.

Figure 3 shows the total timing of a semi-on/off logic set.
Figure 4 shows the total timing of the HOLD signal.

handbook, full pagewidth

V

P

enable

regulator 1

regulator 1

regulator 2

enable

regulator 2

18.0 V

9.4 V

4.5 V

4.0 V

≥2.2 V

9.0 V

0 V

load dump

5.0 V

0 V

≤2.0 V

≥2.2 V
≤2.0 V

regulator 3

enable

regulator 3

3.3 V

0 V

≥2.2 V
≤2.0 V

MGL621

Fig.3 Timing diagrams of a semi-on/off logic set.

1999 Jul 14 5

Philips Semiconductors Preliminary specification

Multiple voltage regulator TDA3617

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

P

supply voltage

operating − 17.5 V
jump start t ≤ 10 minutes − 30 V
load dump protection for 50 ms; t

r

≥ 2.5 ms − 50 V

V

bat(rp)

reverse polarity battery voltage non-operating −−18 V

P

tot

total power dissipation − 62 W

T

stg

storage temperature non-operating −55 +150 °C

T

amb

ambient temperature operating −40 +85 °C

T

j

junction temperature operating − 175 °C

Fig.4 Timing diagrams of the HOLD signal.

handbook, full pagewidth

load dump

V

P

enable

regulator

2 and/or 3

enable

regulator 1

out of

regulation

regulator

output

2 and/or 3

regulator

output 1

temperature

protection

>150 °C

HOLD

passive

active

MGL622

out of

regulation

short

circuit

out of

regulation