Philips TDA3602-N3 Datasheet

DATA SH EET

Product speciﬁcation File under Integrated Circuits, IC01

July 1994

INTEGRATED CIRCUITS

TDA3602

Multiple output voltage regulator

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

FEATURES

• Two VP state controlled regulators (REG1 and REG2)

• Regulator 3 operates during load dump or thermal

shutdown

• Multi-function control pin

• A back-up circuit for Regulator 3 via a single capacitor

• Supply voltage of −6 V to 50 V (a voltage of −3 V on V

does not discharge capacitor Cbu)

• Low reverse current Regulator 3

• Low quiescent current in coma mode

• HOLD output

• RESET output (LOW at load dump)

• High ripple rejection.

PROTECTIONS

• Foldback current limit protection (Regulators 1 and 2)

• Load dump protection

• Thermal protection

• DC short-circuit safe to ground and V

of all regulator

outputs

• Reverse polarity safe of pin 1 (VP). No high currents are flowing which can damage the IC

• Capable of handling high energy on the regulator outputs.

GENERAL DESCRIPTION

The TDA3602 is a multiple output voltage regulator, intended for use in car radios with or without a microprocessor. It contains two fixed voltage regulators with foldback current protection (Regulators 1 and 2), and one fixed voltage regulator that also operates during load dump and thermal shutdown. This regulator can be used to supply a microprocessor.

A back-up circuit supplies Regulator 3 during a short period after the power is cut off (negative field decay or engine start procedure). A state control pin (pin 4) controls the device, which can be switched through four stages using the information at this pin. The switching levels at this pin contain hysteresis.

RESET and HOLD outputs can be used to interface with a microprocessor. The RESET signal can be used to call up or initialize a microprocessor (power-on reset). The HOLD signal can be used to control the power stages (mute signal in a low end application), or to generate a HOLD interrupt (microprocessor application).

An internal Zener diode on the back-up pin allows this pin to withstand a load dump when supplied by the pin using a 100 Ω series resistor.

The supply pin can withstand load dump pulses and negative supply voltages.

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

QUICK REFERENCE DATA

Note

1. Vbu (pin 8) supplied by VP2 with a 100 Ω series resistor and I

REG3

< 10 mA.

ORDERING INFORMATION

Note

1. SOT110-1; 1996 August 21.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

positive supply voltage

operating 9.2 14.4 18 V Regulator 3 on 6.0 14.4 18 V jump start −−30 V load dump; Regulator 3 on −−50 V operating note 1 6.5 − 30 V load dump; Regulator 3 on note 1 −−50 V

total quiescent current coma mode − 290 −µA

virtual junction temperature −−150 °C

Voltage regulators

output voltage Regulator 1 0.5 mA ≤ IR1≤ 250 mA 8.2 8.5 8.8 V

output voltage Regulator 2 0.5 mA ≤ IR2≤ 140 mA 4.8 5.0 5.2 V

output voltage Regulator 3 0.5 mA ≤ IR3≤ 50 mA 4.8 5 5.2 V

EXTENDED TYPE

NUMBER

PACKAGE

PINS PIN POSITION MATERIAL CODE

TDA3602

(1)

9 SIL plastic SOT110

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

handbook, full pagewidth

REGULATOR 2

SCHMITT 

TRIGGER

MCD346 - 1

SCHMITT 

TRIGGER

PROTECTION

LOADDUMP /

V REVERSE

POLARITY

STATE

CONTROL

CIRCUIT

ground

REGULATOR 1

REGULATOR 3

HOLD CIRCUIT

CONTROL

R1,R2 on

> 2 V

L / H current

reset

V 8.5 V

hold

reset

TDA3602

5 V switched

(back up)

(state control)

Zener

(21 V)

REG1

V 5 V

REG2

V 5 V

REG3

Fig.1 Block diagram.

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

PINNING

SYMBOL PIN DESCRIPTION

1 positive supply voltage REG1 2 Regulator 1 output RESET 3 reset output V

4 state control input HOLD 5 hold output GND 6 ground REG3 7 Regulator 3 output V

8 back-up REG2 9 Regulator 2 output

handbook, halfpage

MCD345

2 3 4

GND

REG1

REG3

REG2

TDA3602

RESET

HOLD

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

This multiple output voltage regulator contains three fixed voltage regulators, numbered 1, 2 and 3. Two of these can be switched between the on and off states using the state control pin (pin 4). The third (Regulator 3), which is continuously in, can be switched by the state control pin between a low and a high current mode.

In addition to Regulators 1 and 2, the device is supplied by an internal switch that is open when the supply voltage falls below the back-up voltage (negative field decay or engine start procedure), or during a load dump. (During this load dump, Regulators 1 and 2 are switched off and RESET is switched LOW). This switched supply voltage (the so-called back-up voltage (Vbu), is available at pin 8. An electrolytic capacitor can be connected to this pin, and the charge on this capacitor can be used to supply the device for a short period after the supply voltage is removed.

Three pins are provided for interfacing with a microprocessor:

• state control pin

• hold output pin

• reset output pin.

When the supply voltage (VP) is connected to the device, Vbu will rise. When Vbu reaches 7.9 V, the device is in the power-on mode. The RESET output goes HIGH and Regulator 3 is switched on. In a microprocessor application, the RESET output can be used to call up the CPU and to initialize the program.

What follows depends on the voltage at the state control pin (V

). In most applications, when the supply voltage is connected, Vsc will rise slowly (e.g. by charging a capacitor).The device will leave the power-on mode and enter the reset mode when Vsc rises above 2.2 V. In both the power-on and reset modes, Regulator 3 will be in the high current mode, Regulators 1 and 2 will be switched off and the RESET output will be HIGH.

The device will enter the wake mode when Vsc reaches 2.8 V. The RESET pin will go LOW and the CPU must be switched to the sleep mode. Regulator 3 is still in the high current mode.

As Vsc continues rising and the voltage reaches 3.6 V, the stabilizer will be switched into the sleep mode. It will be in a coma mode when Vsc is greater than 3.8 V. In this mode, only the relevant circuits remain operating; this is to keep the power consumption as low as possible i.e. typically 290 µA.

If the device is switched on with Vsc already higher than 3.8 V, the device will be switched directly from the power-on mode into the coma mode.

When Vsc is lowered gradually from 3.6 V (or higher) to 2 V, the device will go from sleep to reset again.

Vsc must be lower than 1.1 V to bring the device into the on mode; note that this is not the same as the power-on mode. In this condition, Regulator 3 is in the high current mode, both Regulators 1 and 2 are switched on and the HOLD output will be HIGH (depending on the state of V

and the in-regulation condition of Regulators 1 and 2).

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

When the device is in the on mode, it will switch back to the reset mode when Vsc rises to 2 V, or when the supply voltage drops below 7.3 V.

When V

REG3

drops below 3 V, the device will return to the power off mode, regardless of the condition the device was in.

LIMITING VALUES

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

Note

1. V

(pin 8) supplied by VP2 with a 100 Ω series resistor and I

REG3

< 10 mA.

THERMAL RESISTANCE

CHARACTERISTICS

= 14.4 V; T

amb

= 25 °C; measured in Fig.6; unless otherwise speciﬁed.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

supply voltage

operating − 18 V jump start t ≤ 10 min − 30 V load dump t ≤ 50 ms; t

≥ 2.5 ms − 50 V

Regulator 3 on V

> −3 V; note 1 − 30 V

load dump t ≤50 ms; t

≥ 2.5 ms; note 1 − 50 V

reverse battery voltage −6 − V

stg

storage temperature non-operating −55 +150 °C

virtual junction temperature operating −40 +150 °C

reverse polarity non-operating − 6V

tot

total power dissipation − 15 W

SYMBOL PARAMETER THERMAL RESISTANCE

th j-a

from junction to ambient in free air 50 K/W

th j-c

from junction to case (see Fig.6) 12 K/W

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply

supply voltage

operating 9.2 14.4 18 V Regulator 3 on note 1 6.0 14.4 18 V jump start t ≤ 10 min −− 30 V load dump t ≤ 50 ms; t

≥ 2.5 ms −− 50 V

quiescent current Vsc > 4V; note 2

= 12.4 V − 280 360 µA

= 14.4 V − 290 −µA

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Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

Schmitt triggers

VP2SCHMITT TRIGGER (FOR HOLD AND REGULATORS 1 AND 2) V

thr

rising voltage threshold 7.3 7.6 8.0 V

thf

falling voltage threshold 6.8 7.1 7.5 V

hysteresis − 0.5 − V REGULATOR 1SCHMITT TRIGGER (FOR HOLD) V

thr

rising voltage threshold − VR1 − 0.2 − V V

thf

falling voltage threshold − VR1 − 0.3 − V V

hysteresis − 0.1 − V REGULATOR 2SCHMITT TRIGGER (FOR HOLD) V

thr

rising voltage threshold − VR2 − 0.2 − V V

thf

falling voltage threshold − VR2 − 0.3 − V V

hysteresis − 0.1 − V VBU SCHMITT TRIGGER (REGULATOR 3) V

thr

rising voltage threshold V

7.3 7.9 8.4 V

thf

falling voltage threshold V

REG3

2.5 3 3.5 V

hysteresis − 4.9 − V

State control pin

voltage threshold between note 2 − V

thr1

+ 0.2 − V

sleep and coma V

thr1

voltage threshold wake to 3.35 3.6 3.85 V

sleep V

thf1

voltage threshold sleep to 2.5 2.7 2.9 V

wake V

hy1

hysteresis wake/sleep 0.85 0.92 1.0 V V

thr2

voltage threshold reset to 2.6 2.8 3.0 V

wake V

thf2

] voltage threshold wake to 1.75 1.9 2.05 V

reset V

hy2

hysteresis reset/wake 0.85 0.92 1.0 V V

thr3

voltage threshold on to reset 1.85 2.0 2.15 V V

thf3

voltage threshold reset to on 1.0 1.1 1.2 V V

hy3

hysteresis on/reset 0.85 0.92 1.0 V I

scl

input current

≤ 0.8 V −− −1µA

≥ 4 V −− 1µA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

July 1994 8

Philips Semiconductors Product speciﬁcation

Multiple output voltage regulator TDA3602

Reset output

LOW level output voltage IOL = 0 0 0.2 0.8 V V

HIGH level output voltage 2.0 5.0 5.25 V I

LOW level output current VOL ≤ 0.8 V 0.3 0.8 − mA I

HIGH level output current VOH > 3 V −0.3 −2.0 − mA

Hold output

LOW level output voltage IOL = 0 0 0.2 0.8 V V

HIGH level output voltage 2.0 5.0 5.25 V I

LOW level output current VOL ≤ 0.8 V; note 3 0.3 1.0 − mA I

HIGH level output current VOH > 3 V −1.5 −9.0 − mA

Regulator 1 (I

REG1

= 5 mA unless otherwise speciﬁed)

REG1

output voltage off Vsc > 2.1 V − 1 400 mV V

REG1

output voltage

0.5 V ≤ I

REG1

≤ 250 mA 8.2 8.5 8.8 V

10 V ≤ V

≤ 18 V 8.2 8.5 8.8 V

∆V

REG1

line regulation 10 V ≤ VP ≤ 18 V −− 50 mV ∆V

REGL1

load regulation 0.5 mA ≤ I

REG1

≤ 250 mA −− 50 mV SVRR1 supply voltage ripple rejection f = 200 Hz;2 V (p-p) 60 −−dB V

REGd1

drop-out voltage I

REG1

= 250 mA −− 0.4 V

REGm1

current limit V

REG1

> 7 V; note 4 0.4 − 1.2 A

REGsc1

short-circuit current RL ≤ 0.5 Ω; note 4 − 250 − mA

Regulator 2 (I

REG2

= 10 mA unless otherwise speciﬁed)

REG2

output voltage off Vsc >2.1 V − 1 400 mV

REG2

output voltage

0.5 V ≤ I

REG2

≤ 140 mA 4.8 5.0 5.2 V

8 V ≤ V

≤ 18 V 4.8 5.0 5.2 V

∆V

REG2

line regulation 8 V ≤ VP ≤ 18 V −− 50 mV

∆V

REGL2

load regulation 0.5 mA ≤ I

REG2

≤ 140 mA −− 50 mV SVRR2 supply voltage ripple rejection f = 200 Hz; 2 V (p-p) 60 −−dB V

REGd2

drop-out voltage I

REG2

= 140 mA − 1.2 − V

REGm2

current limit V

REG2

> 4.5 V; note 4 200 − 600 mA

REGsc2

short-circuit current RL ≤ 0.5 Ω; note 4 − 130 − mA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

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