1995 Dec 13

5

Philips Semiconductors

Product specification

Multiple output voltage regulators

TDA3601Q

TDA3601AQ

FUNCTIONAL DESCRIPTION

The TDA3601Q is a multiple output voltage regulator with

six fixed voltage regulators. Three, logical switch

controlled, voltage regulators (numbers 4 to 6) are

available, and one non-switchable voltage regulator

(number 1). In addition, there are two further regulators

(numbers 2 and 3), which are controlled by supply

Regulator 1 is not affected by load dump or thermal

therefore be switched of by an ignition switch, for example.

An internal bandgap voltage reference, which provides a

reference voltage for each independent regulator, is

regulator 1.

Schmitt trigger.

When this voltage drops below 5.95 V typical, the reset

output is disabled, to prevent a microprocessor being

disturbed by a too-low supply voltage. An out-of-regulation

condition is indicated by a logical low and an in-regulation

condition indicated by a logical high.

The ‘Power On’ switch low will disable regulator 2 and 3

outputs. In addition, the logic switch will be disabled, so

that regulators 4 to 6 are switched off. When both

will be high, so that the logic multiplexer and regulators 2

and 3 are enabled. Regulators 4 to 6 can now be selected

by the multiplexer.

Re-triggerable one-shot circuits produce a RESET (open

pulse). RESET will be held in a constant high state when

The TDA3601 has a RESET output, but the TDA3601A

has an inverted RESET output (RESET).

LIMITING VALUES

In accordance with the Absolute maximum System (IEC 134).

Note

1. Regulator 1 operating, 0.5 mA

≤ I

THERMAL CHARACTERISTICS

QUALITY SPECIFICATION

Quality according to UZW-BO/FQ-0601.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

supply voltage

operating

−

18

V

non-operating

−

30

V

load dump protected; during 50 ms;

−

50

V

total power dissipation

−

15

W

storage temperature range

non-operating

−55

150

°C

virtual junction temperature

operating

−40

150

°C

reverse polarity

non-operating

−

6V

SYMBOL

PARAMETER

VALUE

UNIT

thermal resistance from junction to case

8

K/W

thermal resistance from junction to ambient in free air

40

K/W