MAX5913 datasheet(6/20 Pages) MAXIM

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+48V Quad Hot-Swap Controllers For

Power-Over-LAN

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Typical Operating Characteristics (continued)

(VCSP_ = VCC = +48V, VDD = +3.3V, VRLY = +12V, AGND = DGND = 0, RTIM = open, TA = +25°C, unless otherwise specified.)

CURRENT-LIMIT FOLDBACK

(VCC = +72V)

MAX5913/4 toc16

10ms/div

RLYON = VDD, RL = 200

Ω, RRTIM = 40kΩ

A: VON, 5V/div

B: VOUT, 10V/div

C: IOUT, 200mA/div

CURRENT-LIMIT FOLDBACK

(VCC = +57V)

MAX5913/4 toc17

10ms/div

RLYON = VDD, RL = OPEN,

RRTIM = 40k

Ω, CLOAD = 470µF

A: VON, 5V/div

B: VOUT, 10V/div

C. IOUT, 200mA/div

OVERCURRENT DELAY

(EXPANDED TIME SCALE)

MAX5913/4 toc20

1ms/div

RTRYEN = VDD, RLYON = ON = VDD,

DC = DON'T CARE, RRTIM = 2k

Ω, RL = 100Ω

A: VGATE, 20V/div

B: IOUT, 200mA/div

OVERCURRENT DELAY

MAX5913/4 toc19

20ms/div

RTRYEN = VDD, RLYON = ON = VDD, DC = 4%,

RRTIM = 2k

Ω, RL = 100Ω

A: VGATE, 20V/div

B: IOUT, 200mA/div

CURRENT-LIMIT FOLDBACK

(VCC = +72V)

MAX5913/4 toc18

20ms/div

RLYON = VDD, RL = OPEN, RRTIM = 40k

Ω, CLOAD = 470µF

A: VON, 5V/div

B: VOUT, 20V/div

C: IOUT, 200mA/div

SHORT-CIRCUIT RESPONSE

(VCC = +48V)

MAX5913/4 toc21

1ms/div

ON = RLYON = VDD, RL = 1

Ω, RRTIM = 2kΩ

A: IOUT, 200mA/div

B: VGATE, 20V/div

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