MAX3293 datasheet(2/11 Pages) MAXIM

2 / 11 page

20Mbps, +3.3V, SOT23 RS-485/

RS-422 Transmitters

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VCC = +3.3V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +3.3V and TA = +25°C.) (Notes 1, 2)

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 to GND, unless otherwise noted.)

Supply Voltage (VCC).............................................................+6V

DE, DI .......................................................................-0.3V to +6V

Y, Z .........................................................................-7V to +12.5V

Maximum Continuous Power Dissipation (TA = +70°C)

SOT23 (derate 8.2mW/°C above +70°C) .................654.1mW

Operating Temperature Ranges

MAX32_ _AUT...............................................-40°C to +125°C

Storage Temperature Range .............................-65°C to +160°C

Junction Temperature .....................................................+160°C

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

Soldering Temperature (reflow) .......................................+260°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

POWER SUPPLY

Supply Voltage

VCC

3.135

3.300

3.465

Supply Current in Normal

Operation

No load, DI = VCC or GND, DE = VCC

5mA

Supply Current in Shutdown Mode

ISHDN

No load, DE = GND

µA

DRIVER

R = 50

Ω (RS-422),

≤ +85°C

2.0

VCC

Differential Driver Output

VOD

Figure 1, DE = VCC,

DI = GND or VCC

R = 27

Ω (RS-485),

≤ +85°C

1.5

VCC

Change in Magnitude of

Differential Output Voltage

ΔVOD

Figure 1, R = 27

Ω or 50Ω,

DE = VCC (Note 3)

0.2

Driver Common-Mode Output

Voltage

VOC

Figure 1, R = 27

Ω or 50Ω,

DE = VCC, DI = VCC or GND

-1

Change in Magnitude of Common-

Mode Voltage

ΔVOC

Figure 1, R = 27

Ω or 50Ω (Note 3)

0.2

DRIVER LOGIC

Input High Voltage

VIH

DE, DI

2.0

Input Low Voltage

VIL

DE, DI

0.8

Input Current

IIN

DE, DI

-2

µA

VIN = +12V

-20

+20

Output Leakage

Y, Z

DE = GND,

VCC = GND or

+3.3V

VIN = -7V

-20

+20

µA

(VCC - 1V)

≤ VOUT ≤ +12V, output high

+25

Driver Short-Circuit Foldback

Output Current

IOSFD

-7V

≤ VOUT ≤ 1V, output high

-25

≤ VOUT ≤ +12V, output low

-250

Driver Short-Circuit

Output Current

IOSD

-7V

≤ VOUT ≤ VCC, output high

+250

Thermal-Shutdown Threshold

TTS

160

°C

Thermal-Shutdown Hysteresis

TTSH

°C

ESD Protection

Y, Z

Human Body Model

±9

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