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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

DO Weak Pulldown Current

IPDDO

DO driver disabled, VCC = 36V,

VDO = (VCC - 1V)

120

DI Weak Pulldown Current

IPDDI

DI load disabled, VCC = 36V,

VDI = (VCC - 1V)

300

C/Q Input Capacitance

CC/Q

C/Q driver disabled

DO Input Capacitance

CDO

DO driver disabled

DI Input Capacitance

CDI

C/Q, DI CURRENT SINK

C/Q Load Current

ILLM_C/Q

C/Q load enabled

(C/QLoad = 1)

0V P VC/Q P 5V

5V P VC/Q

6.6

DI Load Current

ILLM_DI

DI load enabled

(DiLoad = 1)

0V P VDI P 5V

9V P VDI

7.5

LOGIC INPUTS (TXC, TXQ, TXEN, LO, CS, SDI, SCLK)

Logic-Input Voltage Low

VIL

0.3 x

Logic -Input Voltage High

VIH

0.7 x

Logic-Input Leakage Current

ILEAK

Logic input = GND or VL

-1

Logic-Input Capacitance

CIN

LOGIC OUTPUTS (RX, WU, LI, UV, SDO, IRQ)

Logic-Output Voltage Low

VOL

IOUT = -5mA

0.4

Logic-Output Voltage High

VOHRX,

VOHWU, VOHLI,

VOHSDO,

VOHIRQ,

IOUT = 5mA (Note 3)

VL -

0.6

SDO Leakage Current

ILK_SDO

SDO disabled, SDO = GND or VL

-1

THERMAL SHUTDOWN

Thermal Warning Threshold

Die temperature rising, OTemp bit is set

+115

Thermal Warning Threshold

Hysteresis

Die temperature falling, OTemp bit is

cleared

Thermal Shutdown Threshold

Die temperature rising

+150

Thermal Shutdown Hysteresis

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