TEA1202TS Ver la hoja de datos (PDF) - Philips Electronics

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TEA1202TS

0.95 V starting power unit

Philips Electronics 

Philips Semiconductors

0.95 V starting power unit

6 BLOCK DIAGRAM

Preliminary specification

TEA1202TS

handbook, full pagewidth

LBI2 12

LBI1 13

LBO 14

1

LX1

LX2 20

5

ILIM

TEA1202TS

3 SHDWN2

11

IN2

Vref

LDO2

10 OUT2

9 FB2

LOW BATTERY

DETECTOR

SHDWN0

Vref

P-type POWER FET

LDO1

sense FET

START-UP

CIRCUIT

INTERNAL

SUPPLY

6

OUT1

7

FB1

4

UPOUT/DNIN

8

GND

N-type

POWER

FET

sense

FET

Vref

CURRENT LIMIT

COMPARATOR

TEMPERATURE

PROTECTION

13 MHz

OSCILLATOR

SYNC

GATE

CONTROL LOGIC

AND

MODE GEARBOX

TIME

COUNTER

DIGITAL CONTROLLER

17

18

2 19

GND0

SYNC/PWM SHDWN0 U/D

16

FB0

Vref

REFERENCE 15

VOLTAGE

Vref

MGU062

Fig.1 Block diagram.

2002 Mar 14

6

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