Rainbow-electronics MAX5937 Manual do Utilizador descarregar pdf (Página 6)

MAX5936/MAX5937

-48V Hot-Swap Controllers with V

Step Immunity and No R

SENSE

6 _______________________________________________________________________________________

MAX5936_A SHORT-CIRCUIT EVENT

MAX5936 toc08

400ns/div

GATE

10V/div

OUT

50V/div

10A/div

PGOOD

50V/div

NORMALIZED CIRCUIT-BREAKER

THRESHOLD vs. TEMPERATURE

MAX5936 toc09

TEMPERATURE (°C)

NORMALIZED CIRCUIT-BREAKER THRESHOLD (%)

603510-15

0.6

0.8

1.0

1.2

1.4

1.6

0.4

-40 85

OUT

SLEW RATE

vs. TEMPERATURE

MAX5936 toc10

TEMPERATURE (°C)

SLEW RATE (V/ms)

603510-15

5.5

6.0

6.5

7.0

7.5

8.0

8.5

9.0

9.5

10.0

5.0

-40 85

GATE

= 0, C

LOAD

= 100µF

= 48V

= 72V

= 12V

MAX5936_A INPUT VOLTAGE

STEP EVENT (NO FAULT)

MAX5936 toc11

4ms/div

GATE

10V/div

OUT

50V/div

1A/div

PGOOD

50V/div

LOAD

= 75Ω

MAX5936_A INPUT VOLTAGE

STEP EVENT (FAULT)

MAX5936 toc12

4ms/div

GATE

10V/div

OUT

50V/div

2A/div

PGOOD

50V/div

LOAD

= 75Ω

GATE TO V

CLAMP VOLTAGE

AT POWER OFF

MAX5936 toc13

SINK

(mA)

GATE CLAMPING VOLTAGE (V)

18161412108642

0.5

1.0

1.5

2.0

2.5

3.0

020

= GND = 0V

GATE TO V

CLAMP VOLTAGE

MOSFET FULLY ENHANCED

MAX5936 toc14

SINK

(mA)

GATE CLAMPING VOLTAGE (V)

181612 144 6 8 102

020

= -48V, V

UVLO

= 2V

Typical Operating Characteristics (continued)

= -48V, GND = 0V, V

= GND - V

, all voltages are referenced to V

, T

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 10 11 ... 22 23

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