MAX3443E datasheet(2/15 Pages) MAXIM

Part #	MAX3443E

Description	±60V Fault-Protected, 10Mbps, Fail-Safe RS-485 Transceiver with 짹15kV ESD Protection

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Manufacturer	MAXIM [Maxim Integrated Products]

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±60V Fault-Protected, 10Mbps, Fail-Safe

RS-485 Transceiver with ±15kV ESD Protection

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.

All Voltages Referenced with Respect to GND

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

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

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

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

Continuous Power Dissipation (TA = +70°C)

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

8-Pin PDIP (derate 9.09mW/°C above +70°C).............727mW

Operating Temperature Ranges

MAX3443EC_ _ ..................................................0°C to +70°C

MAX3443EE_ _ ...............................................-40°C to +85°C

MAX3443EA_ _ .............................................-40°C to +125°C

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

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

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 = 50

Ω

2.0

VCC

Differential Driver Output

VOD

Figure 1, RL = 27

Ω

1.5

VCC

V

Change in Magnitude of

Differential Output Voltage

∆VOD

Figure 1, RL = 50

Ω or 27Ω (Note 2)

0.2

V

Driver Common-Mode Output

Voltage

VOC

Figure 1, RL = 50

Ω or 27Ω

VCC / 2

3

V

Change In Magnitude of

Common-Mode Voltage

∆VOC

Figure 1, RL = 50

Ω or 27Ω (Note 2)

0.2

V

DRIVER LOGIC

Driver Input High Voltage

VDIH

2.0

V

Driver Input Low Voltage

VDIL

0.8

V

Driver Input Current

IDIN

±2µA

Driver Output Fault Current

IOFC

VA, B =

±60V, RL = 54Ω±6mA

Driver Short-Circuit Output

Current

IOSD

-7V

≤ VOUT ≤ +12V

(Note 3)

±350

mA

Driver Short-Circuit Foldback

Output Current

IOSDF

-7V

≤ VOUT ≤ +12V

(Note 3)

±25

mA

RECEIVER

DE = GND, VCC = GND,

VA, B = +12V

250

VA, B = -7V

-150

µA

Input Current

IA,B

A, B

VA, B =

±60V

±6

mA

Receiver Differential Threshold

Voltage

VTH

-7V

≤ VCM ≤ +12V

-200

-50

mV

Receiver Input Hysteresis

∆VTH

25

mV

Note 1: A, B must be terminated with 54

Ω or 100Ω to guarantee ±60V fault protection.

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