MAX14821 datasheet(4/29 Pages) MAXIM

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MAX14821

IO-Link Device Transceiver

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC = 18V to 36V, VL = 2.3V to 5.5V, VGND = 0V; all logic inputs at VL or GND; TA = -40NC to +85NC, unless otherwise noted. Typical

values are at VCC = 24V, VL = 3.3V, and TA = +25NC, unless otherwise noted.) (Note 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

V5 Output Voltage Range

No load on V5, 7V P VLDOIN P 36V

4.75

5.00

5.25

V5 Load Regulation

1mA < ILOAD < 10mA, VLDOIN = 7V,

0.1FF bypass capacitor on V5

0.8

1mA < ILOAD < 30mA, VLDOIN = 7V,

0.1FF bypass capacitor on V5, 10W–1FF

compensation network added to V5

0.8

3.3V LDO (LDO33)

LDO33 Output Voltage

VLDO33

No load on LDO33

3.1

3.3

3.5

LDO33 Undervoltage-Lockout

Threshold

VLDO33UVLO VLDO33 falling

2.4

LDO33 Load Regulation

1mA < ILOAD < 20mA, VLDOIN = 7V

0.25

24V INTERFACE

C/Q Driver Output-Voltage High

VOH_C/Q

C/Q high-side enabled, IC/Q = -100mA,

9V P VCC P 36V

VCC -

1.3

VCC –

1.3

C/Q Driver Output-Voltage Low

VOL_C/Q

C/Q low-side enabled, IC/Q = +100mA,

9V P VCC P 36V

1.4

C/Q Driver Source Current Limit

IOH_C/Q

C/Q high-side enabled, VC/Q < (VCC -

3V), 9V P VCC P 36V

+100

+140

+190

C/Q Driver Sink Current Limit

IOL_C/Q

C/Q low-side enabled, VC/Q > 3V,

9V P VCC P 36V

-190

-140

-100

DO Driver Output-Voltage High

VOH_DO

DO high-side enabled, IDO = +100mA,

9V P VCC P 36V

VCC

- 3

VCC -

1.6

DO Driver Output-Voltage Low

VOL_DO

DO low-side enabled, IDO = -100mA,

9V P VCC P 36V

1.6

DO Driver Source Current Limit

IOH_DO

DO high-side enabled, VDO < (VCC - 3V)

+100

+135

+190

DO Driver Sink Current Limit

IOL_DO

DO high-side enabled, VDO > 3V

-190

-135

-100

C/Q, DI Input Voltage Range

VIN

For valid RX, LI

-1.0

VCC +

1.0

C/Q Input Threshold High

VIH_C/Q

C/Q driver disabled

10.5

13.0

C/Q Input Threshold Low

VIL_C/Q

C/Q driver disabled

8.0

11.5

C/Q Input Hysteresis

VHYS_C/Q

C/Q driver disabled

1.0

DI Input Threshold High

VIH_DI

6.8

DI Input Threshold Low

VIL_DI

5.2

6.4

DI Input Hysteresis

VHYS_DI

C/Q Weak Pulldown Current

IPDC/Q

C/Q driver disabled, VC/Q = (VCC - 1V)

100

400

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