MAX13442EASA datasheet(2/18 Pages) MAXIM

Part #	MAX13442EASA

Description	±15kV ESD-Protected, ±80V Fault-Protected, Fail-Safe RS-485/J1708 Transceivers

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Manufacturer	MAXIM [Maxim Integrated Products]

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±15kV ESD-Protected, ±80V Fault-Protected,

Fail-Safe RS-485/J1708 Transceivers

2

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

(Voltages referenced to GND.)

VCC ........................................................................................+7V

RE, DE, DE, DI, TXD ...................................-0.3V to (VCC + 0.3V)

A, B (Note 1) (MAX13442E/MAX13444E) ............................±80V

A, B (Note 1) (MAX13443E) .................................................±60V

RO ..............................................................-0.3V to (VCC + 0.3V)

Short-Circuit Duration (RO, A, B) ...............................Continuous

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW

Operating Temperature Range .........................-40°C to +125°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature ......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

DC ELECTRICAL CHARACTERISTICS

(VCC = +4.75V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DRIVER

Figure 1, RL = 100

Ω

2VCC

Differential Driver Output

VOD

Figure 1, RL = 54

Ω

1.5

VCC

V

Change in Magnitude of

Differential Output Voltage

ΔVOD

Figure 1, RL = 100

Ω or 54Ω (Note 2)

0.2

V

Driver Common-Mode

Output Voltage

VOC

Figure 1, RL = 100

Ω or 54Ω

VCC / 2

3

V

Change in Magnitude of

Common-Mode Voltage

ΔVOC

Figure 1, RL = 100

Ω or 54Ω (Note 2)

(MAX13442E/MAX13443E)

0.2

V

DRIVER LOGIC

Driver-Input High Voltage

VDIH

2V

Driver-Input Low Voltage

VDIL

0.8

V

Driver-Input Current

IDIN

±2µA

0

≤ VOUT ≤ +12V

+350

Driver Short-Circuit Output Current

(Note 3)

IOSD

-7V

≤ VOUT ≤ VCC

-350

mA

(VCC - 1V)

≤ VOUT ≤ +12V (Note 3)

+25

Driver Short-Circuit Foldback

Output Current

IOSDF

-7V

≤ VOUT ≤ +1V (Note 3)

-25

mA

VOUT

≥ +20V, RL = 100Ω

+6

Driver-Limit Short-Circuit Foldback

Output Current

IOSDL

VOUT

≤ -15V, RL = 100Ω

-6

mA

RECEIVER

VCC = GND, VA, B = 12V

250

VA, B = -7V

-150

µA

Input Current

IA,B

A, B

receive

mode

VA, B =

±80V

±6mA

Receiver-Differential Threshold

Voltage

VTH

-7V

≤ VCM ≤ +12V

-200

-50

mV

Receiver-Input Hysteresis

ΔVTH

25

mV

Note 1: During normal operation, a termination resistor must be connected between A and B in order to guarantee overvoltage pro-

tection up to the absolute maximum rating of this device. When not in operation, these devices can withstand fault voltages

up to the maximum rating without a termination resistor and will not be damaged.

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