MAX22245 datasheet(4/22 Pages) MAXIM

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MAX22245/MAX22246

Reinforced, Fast, Low-Power,

Two-Channel Digital Isolators

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Electrical Characteristics

(VDDA - VGNDA = 1.71V to 5.5V, VDDB - VGNDB = 1.71V to 5.5V, CL = 15pF, TA = -40°C to +125°C, unless otherwise noted. Typical

values are at VDDA - VGNDA = 3.3V, VDDB - VGNDB = 3.3V, VGNDA = VGNDB, TA = +25°C, unless otherwise noted.) (Notes 1, 3)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SUPPLY VOLTAGE

Supply Voltage

VDDA

Relative to GNDA

1.71

5.5

VDDB

Relative to GNDB

1.71

5.5

Undervoltage-Lockout

Threshold

VUVLO_

VDD_ rising

1.5

1.6

1.66

Undervoltage-Lockout

Threshold Hysteresis

VUVLO_HYST

MAX22245 SUPPLY CURRENT (Note 2)

Side A Supply Current

IDDA

500kHz square

wave, CL = 0pF

VDDA = 5V

0.31

0.57

VDDA = 3.3V

0.30

0.56

VDDA = 2.5V

0.30

0.56

VDDA = 1.8V

0.29

0.41

50MHz square

wave, CL = 0pF

VDDA = 5V

2.38

3.25

VDDA = 3.3V

2.32

3.18

VDDA = 2.5V

2.29

3.14

VDDA = 1.8V

2.22

2.89

Side B Supply Current

IDDB

500kHz square

wave, CL = 0pF

VDDB = 5V

0.60

1.11

VDDB = 3.3V

0.59

1.10

VDDB = 2.5V

0.59

1.09

VDDB = 1.8V

0.58

1.06

50MHz square

wave, CL = 0pF

VDDB = 5V

3.02

3.80

VDDB = 3.3V

2.12

2.80

VDDB = 2.5V

1.74

2.35

VDDB = 1.8V

1.42

1.95

MAX22246 SUPPLY CURRENT (Note 2)

Side A Supply Current

IDDA

500kHz square

wave, CL = 0pF

VDDA = 5V

0.46

0.84

VDDA = 3.3V

0.45

0.83

VDDA = 2.5V

0.44

0.83

VDDA = 1.8V

0.44

0.74

50MHz square

wave, CL = 0pF

VDDA = 5V

2.65

3.50

VDDA = 3.3V

2.18

2.95

VDDA = 2.5V

1.98

2.72

VDDA = 1.8V

1.80

2.40

Side B Supply Current

IDDB

500kHz square

wave, CL = 0pF

VDDB = 5V

0.46

0.84

VDDB = 3.3V

0.45

0.83

VDDB = 2.5V

0.44

0.83

VDDB = 1.8V

0.44

0.74

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