Philips TDA3616T, TDA3616SF Datasheet

INTEGRATED CIRCUITS

DATA SH EET

TDA3616

Multiple voltage regulator with battery detection

Product speciﬁcation Supersedes data of 2000 Jan 14 File under Integrated Circuits, IC01

2001 Feb 02

Philips Semiconductors Product speciﬁcation

Multiple voltage regulator with battery detection

FEATURES General

• One VP-state controlled regulator

• Battery detection circuit

• Regulator,resetandbatteryoutputsoperateduringload

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

• TheregulatoroutputisDCshort-circuitedsafetoground

and VP.

TDA3616

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

• Aprovision 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

• Definedstart-upbehaviour;regulatorwillbeswitchedon 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

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

quiescent supply current standby mode − 95 125 µA

standby mode; T

≥ 2.5 ms −−50 V

=25°C − 95 120 µA

amb

Regulator

output voltage 0.5 mA ≤ I

7V≤VP≤18 V; T

0.5 mA ≤ I

REG

≤ 150 mA;

=25°C

amb

≤ 150 mA;

4.8 5.0 5.2 V

4.75 5.0 5.25 V

7V≤VP≤18 V I

REG

= 30 mA;

4.75 5.0 5.25 V

18 V ≤ VP≤ 50 V; load dump

drop

drop-out voltage I

= 150 mA; VP=5V;

REG

=25°C

amb

− 0.6 1.0 V

2001 Feb 02 2

Philips Semiconductors Product speciﬁcation

Multiple voltage regulator with battery

TDA3616

detection

ORDERING INFORMATION

TYPE

NUMBER

NAME DESCRIPTION VERSION

TDA3616T SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 TDA3616SF SIL9MP plastic single in-line medium power package with ﬁn; 9 leads SOT110-1

BLOCK DIAGRAM

handbook, full pagewidth

(14.4 V)

17 (4)

BACKUP SWITCH

PACKAGE

(5) 18

n.c.

i.c.

I(bat)

3.1 kΩ

(3) 16

(1) 14

(2) 15

(7) 54 (6)

MGL933

REG

RES2

RES1

O(bat)

LOAD DUMP

PROTECTION

REFERENCE

2, 3, 8, 9, 12, 13, 19

1, 10, 11, 20

6 (8)

47 kΩ

TDA3616T

7 (9)

GND

REG

BATTERY

BUFFER

REGULATOR

The pin numbers given in parenthesis refer to the TDA3616SF version.

Fig.1 Block diagram.

2001 Feb 02 3

Philips Semiconductors Product speciﬁcation

Multiple voltage regulator with battery

TDA3616

detection

PINNING

SYMBOL

SOT163-1 SOT110-1

i.c. 1, 10, 11, and 20 − interconnected; heat spreader; note 1 n.c. 2, 3, 8, 9, 12, 13

and 19

I(bat)

O(bat)

4 6 battery input voltage 5 7 battery detection output voltage

6 8 reset delay capacitor GND 7 9 ground (0 V) RES2 14 1 reset 2 output RES1 15 2 reset 1 output REG 16 3 regulator output V

17 4 supply voltage

BU 18 5 backup

Note

1. The i.c. pins are connected to each other by the leadframe and can be kept floating or can be connected to ground.

DESCRIPTION

− not connected; heat spreader

handbook, halfpage

The i.c. and n.c. pins can be connected to a heat spreader.

O(bat)

i.c. n.c. n.c.

I(bat)

GND

n.c. n.c.

i.c.

1 2 3 4 5

TDA3616T

6 7 8 9

MGR093

i.c.

20 19

n.c.

BU V

REG RES1

RES2

n.c.

i.c.

Fig.2 Pin configuration (SOT163-1).

handbook, halfpage

Fig.3 Pin configuration (SOT110-1).

RES2 RES1

O(bat)

REG

I(bat)

GND

1 2 3 4

5 6 7 8

TDA3616SF

MGL930

2001 Feb 02 4

Philips Semiconductors Product speciﬁcation

Multiple voltage regulator with battery detection

FUNCTIONAL DESCRIPTION

The TDA3616 (see Fig.1) is a voltage regulator intended to supply a microprocessor (e.g. in car radio applications). Because of low-voltage operation of the application, a low-voltage drop regulator is used.

This regulator will switch-on when the backup voltage (see Section “Backup circuit”) exceeds 7.5 V for the first time and will switch-off again when the output voltage of the regulator drops below 2.4 V. When the regulator is switched on, the RES1 and RES2 outputs (RES2 can only be HIGH when RES1 is HIGH) will go HIGH after a fixed delay time (fixed by an external delay capacitor) to generate a reset to the microprocessor.

Pin RES1 will go HIGH via an internal pull-up resistor of

3.1 kΩ, and is used to initialize the microprocessor. Pin RES2 is used to indicate that the regulator output voltage is within its voltage range. This start-up feature is built-in to secure a smooth start-up of the microprocessor at first connection, without uncontrolled switching of the regulator during the start-up sequence.

TDA3616

The charge of the backup capacitor can be used to supply the regulator and logic circuits for a short period of time whenthesupplyfallsto0 V (the time depends on the value of the storage capacitor). The regulator is switched off at a backup voltage of approximately 2.7 V. From this time onwards, the backup charge will only be used for maintaining reset functions. Due to this, the reset outputs willremainLOWuntiltheoutputoftheregulatoris dropped to 0 V.

All output pins are fully protected. The regulator is protected against load dump and short-circuit (foldback current protection). At load dump, the battery detection circuit will remain operating.

Interfacing with the microprocessor can be accomplished by means of a battery Schmitt trigger and output buffer (simple full/semi on/off logic applications). The battery output will go HIGH when the battery input voltage exceeds the high threshold level.

The timing diagrams are shown in Fig.4.

handbook, full pagewidth

reset delay

battery input

battery output

regulator

reset 2

reset 1

capacitor

18 V

4.75 V

2.4 V

2 V2 V

2.05 V

1.95 V

MGR095

Fig.4 Timing diagrams.

2001 Feb 02 5

Philips Semiconductors Product speciﬁcation

Multiple voltage regulator with battery

TDA3616

detection

LIMITING VALUES

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

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

I(bat)p

I(bat)n

tot

stg

amb

THERMAL CHARACTERISTICS

supply voltage

operating regulator on − 25 V jump start t ≤ 10 minutes − 30 V load dump protection t ≤ 50 ms; t

≥ 2.5 ms − 50 V

reverse polarity voltage non-operating −−18 V positive pulse voltage at battery input VP= 14.4 V; RI=5kΩ− 50 V negative pulse voltage at battery input VP= 14.4 V; RI=10kΩ;

−−100 V

Cl=1nF total power dissipation VP= 12.4 V − 2.5 W storage temperature non-operating −55 +150 °C ambient temperature operating −40 +105 °C junction temperature operating −40 +150 °C

SYMBOL PARAMETER CONDITIONS VALUE UNIT

th(j-p)

thermal resistance from junction to pin/tab

TDA3616T 20 K/W TDA3616SF 12 K/W

th(j-a)

thermal resistance from junction to ambient

TDA3616T 10 cm

2-sided copper

50 K/W

area connected to pins

TDA3616SF in free air 50 K/W

QUALITY SPECIFICATION

Quality specification in accordance with

“SNW-FQ-611E”

2001 Feb 02 6

+ 14 hidden pages