±15kV ESD-Protected, ±60V Fault-Protected,

10Mbps, Fail-Safe RS-485/J1708 Transceivers

_______________________________________________________________________________________

3

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

RECEIVER LOGIC

Output High Voltage

V

Output Low Voltage

0.4

V

Three-State Output Current at

Receiver

0

±1µA

Receiver Input Resistance

-7V

48

k

Ω

Receiver Output Short-Circuit

Current

0

±95

mA

CONTROL

Control Input High Voltage

DE, DE, RE, DE/RE

2

V

Input Current Latch During First

Rising Edge

DE, DE/RE, RE

90

µA

SUPPLY CURRENT

RE = GND),

MAX3444E (DE = RE = GND)

30

Normal Operation

No load,

or GND

RE = GND)

10

mA

MAX3443E)

20

(MAX3442E/MAX3443E)

10

100

Supply Current in Shutdown Mode

10

µA

Supply Current with Output

Shorted to

±60V

DE = GND, RE = GND, no load

output in three-state (MAX3443E)

±15

mA

DC ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Overvoltage Protection

Ω±60

V

ESD Protection

A, B

Human Body Model

±15

kV

FAULT DETECTION

Receiver Differential Threshold

270

450

mV

Receiver Differential Threshold

-450

-270

mV

Fault-Detection Common-Mode

Input Voltage Positive

12

V

Fault-Detection Common-Mode

Input Voltage Negative

-7

V

PROTECTION SPECIFICATIONS