6.4 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

VCC

Supply voltage

3

5.5

V

VIO

I/O supply voltage

1.65

VCC

V

VI

Input voltage at any bus terminal (separately or common mode)(1)

–7

12

V

VIH

High-level input voltage (D, DE, RE, TERM_TX, TERM_RX, SLR, H/F inputs)

0.7*VIO

VIO

V

VIL

Low-level input voltage (D, DE, RE, TERM_TX, TERM_RX, SLR, H/F inputs)

0

0.3*VIO

V

IO

Output current, driver

–60

60

mA

IOR

Output current, receiver

VIO = 1.8 V or 2.5 V

–4

4

mA

IOR

Output current, receiver

VIO = 3.3 V or 5 V

–8

8

mA

RL

Differential load resistance

54

60

Ω

1/tUI

Signaling rate

SLR = VIO

500

kbps

SLR = GND or floating

20

Mbps

TA ((2))

Operating ambient temperature

-40

125

°C

TJ (2)

Junction temperature

-40

150

°C

(1)

The algebraic convention, in which the least positive (most negative) limit is designated as minimum is used in this data sheet.

(2)

Operation is specified for internal (junction) temperatures up to 150°C. Self-heating due to internal power dissipation should be

considered for each application. Maximum junction temperature is internally limited by the thermal shut-down (TSD) circuit which

disables the driver and receiver when the junction temperature reaches typical 170°C.

6.5 Thermal Information

THERMAL METRIC(1)

THVD1424

UNIT

RGT (QFN)

16 PINS

RθJA

Junction-to-ambient thermal resistance

46.1

°C/W

RθJC(top)

Junction-to-case (top) thermal resistance

50.9

°C/W

RθJB

Junction-to-board thermal resistance

20.6

°C/W

ψJT

Junction-to-top characterization parameter

1.1

°C/W

ψJB

Junction-to-board characterization parameter

20.6

°C/W

RθJC(bot)

Junction-to-case (bottom) thermal resistance

6.9

°C/W

(1)

For more information about traditional and new thermal metrics, see the yes application report.

6.6 Power Dissipation

PARAMETER

TEST CONDITIONS

Typical

Max

UNIT

PD

Driver and receiver enabled, external

loopback by A connected to Y, B

connected to Z

VIO = VCC = 5.5 V, TA = 125 °C,

D = square wave 50% duty

Unterminated, TERM_TX = L,

TERM_RX = L

SLR = H

500 kbps

185

210

mW

SLR = L

20Mbps

310

340

TERM_RX = H, With 120 Ω load

between A/B inputs

SLR = H

500 kbps

316

360

mW

SLR = L

20Mbps

396

430

TERM_TX = TERM_RX = H; With 120

Ω between Y/Z outputs and A/B

inputs, CL = 50 pF (driver)

SLR = H

500 kbps

407

470

mW

SLR = L

20Mbps

476

510

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THVD1424

SLLSFQ4A – SEPTEMBER 2022 – REVISED MARCH 2023

Copyright © 2023 Texas Instruments Incorporated

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