+48V, Single-Port Network Power Switch

For Power-Over-LAN

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3

ELECTRICAL CHARACTERISTICS (continued)

= 18.2k

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

1.0

1.4

1.8

POK Output Delay (Note 6)

74

88

102

ms

Zero-Current Detection Threshold

(Note 4)

2.7

3.75

4.8

mV

ZC Output Low Voltage

0.4

V

ZC Output Leakage Current

0.05

1

µA

Zero-Current Detection Delay

300

350

400

ms

Zero-Current Deglitch Time

10

ms

Temperature rising

150

°C

Thermal Shutdown

Hysteresis

30

°C

Shutdown Autorestart Time

LATCH = low (Note 8)

1.60

1.92

2.24

s

UNDERVOLTAGE LOCKOUT

MAX5922A

36

38

40

MAX5922B/

MAX5922C

26

28

30

MAX5922A

4.4

Hysteresis

MAX5922B/C

2.5

V

MAX5922A

1.36

1.38

1.41

Referenced to AGND_S,

MAX5922B/

MAX5922C

1.31

1.33

1.36

V

MAX5922A

160

UVLO Comparator Threshold

Hysteresis

MAX5922B/

MAX5922C

120

mV

UVLO Input Resistance

50

k

Ω

LOGIC SIGNALS

EN, LATCH, DCA, DET_DIS

CLASS, and ZC_EN Input High

Voltage

0.7

×

V

0.3

×

EN, LATCH, DCA, DET_DIS

CLASS, and ZC_EN Input Low

Voltage

0.8

V

EN, LATCH, DCA, DET_DIS

CLASS, and ZC_EN Input Current

-1

+1

µA

EN Low Pulse Width

3µs

FAULT, CL0, CL1 and CL2,

Output Low Voltage

0.4

V

FAULT, CL0, CL1 and CL2,

Output Leakage Current

CLASS = 0V

0.05

1

µA