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MGM666

CONTROL LOGIC

AND

MODE GEARBOX

START-UP

CIRCUIT

I/V

CONVERTER

I/V

CONVERTER

INTERNAL

SUPPLY

TIME

COUNTER

BAND GAP

REFERENCE

13 MHz

OSCILLATOR

SYNC

GATE

TEMPERATURE

PROTECTION

DIGITAL CONTROLLER

sense FET

P-type POWER FET

sense

FET

SHDN

GND

SYNC

U/D

N-type

POWER

FET

LX

UPOUT/DNIN

FB

TEA1206T

5

68

1

4

ILIM

2

3

7

CURRENT LIMIT

COMPARATORS

Fig.1 Block diagram.