Rainbow-electronics MAX5079 Manual do Utilizador descarregar pdf (Página 6)

MAX5079

ORing MOSFET Controller with

Ultra-Fast 200ns Turn-Off

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

= +25°C, unless otherwise noted. See the Typical Operating Circuit.)

FAULT CURRENT WAVEFORM

(IN SHORTED TO PGND)

MAX5079 toc13

= 5V, V

BUS

= 5V,

AUXIN

= 5V, C

STH

= 0µF,

STH

= OPEN, R

FTH

= 0,

UVLO = IN

BUS

5V/div

GATE

10V/div

MOSFET REVERSE

CURRENT

10A/div

1µs/div

FAULT CURRENT WAVEFORM

(IN SHORTED TO PGND)

MAX5079 toc12

= 1V, V

BUS

= 1V,

AUXIN

= 5V, C

STH

= 0µF,

STH

= OPEN, R

FTH

= 0,

UVLO = IN

BUS

1V/div

GATE

5V/div

MOSFET REVERSE

CURRENT

10A/div

1µs/div

FAULT CURRENT WAVEFORM

(IN SHORTED TO PGND)

MAX5079 toc10

= 2.75V, V

BUS

= 2.75V,

AUXIN

= 0V, C

STH

= 0µF,

STH

= OPEN, R

FTH

= 0,

UVLO = IN

BUS

2V/div

GATE

5V/div

MOSFET REVERSE

CURRENT

10A/div

1µs/div

FAULT CURRENT WAVEFORM

(IN SHORTED TO PGND)

MAX5079 toc11

= 12V, V

BUS

= 12V,

AUXIN

= 0V, C

STH

= 0µF,

STH

= OPEN, R

FTH

= 0,

UVLO = IN

BUS

10V/div

GATE

20V/div

MOSFET REVERSE

CURRENT

10A/div

400ns/div

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

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