TDA3682 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

TDA3682

Multiple voltage regulator with power switches

Philips Electronics 

Philips Semiconductors

Multiple voltage regulator with

power switches

Product specification

TDA3682

PINNING

SYMBOL PIN

DESCRIPTION

SW2

1 power control switch 2 (PCON)

output

EN2

2 enable control input 2 for regulator 3

(audio), regulator 4 (AM) and

regulator 5 (FM)

SW1

3 power antenna switch 1 (PANT)

output

EN3

4 enable control input 3 for power

switch 1 (PANT) and power switch 2

(PCON)

REG5

5 regulator 5 (FM) output

VP2

REG4

6 supply voltage 2

7 regulator 4 (AM) output

GND

8 ground

REG3

9 regulator 3 (audio) output

EN1

10 enable control input 1 for regulator 1

(illumination)

REG1

11 regulator 1 (illumination) output

STCP

12 storage capacitor connection for

supply voltage of regulator 2

REG2

13 permanent regulator 2 (BU5V) output

handbook, halfpage

SW2 1

EN2 2

SW1 3

EN3 4

REG5 5

VP2 6

REG4 7

TDA3682

GND 8

REG3 9

EN1 10

REG1 11

STCP 12

REG2 13

MGT169

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

The TDA3682 is a multiple output voltage regulator with

power switches, intended for use in car radios with or

without a microprocessor.

It contains:

• Four switchable regulators and one permanent active

regulator

• Two power switches with loss of ground protection

• Three enable control inputs EN1, EN2 and EN3.

The quiescent current has a very low level of 120 µA

(typical value) with the regulator 2 (BU5V) active.

Because of low voltage operation of the application, low

dropout voltage regulators are used in the TDA3682.

Output selection

Regulator 2 is always active and can not be controlled.

All the other regulators and both power switches can be

controlled by using pins EN1, EN2 and EN3:

• Pin EN1 controls regulator 1 (illumination); see Table 1

• Pin EN2 selects regulator 3, 4 or 5 (audio, AM or FM);

see Table 2

• Pin EN3 selects power switches 1 or 2 (PANT or

PCON); see Table 3.

Pins EN2 and EN3 are three-state level control inputs:

• L means: VEN ≤ 1 V

• M means: 2 V ≤ VEN ≤ 3 V

• H means: VEN ≥ 4 V.

2002 Mar 11

5

Share Link: