RS-485 Transceivers with Low-Voltage

Logic Interface

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3

DC ELECTRICAL CHARACTERISTICS (continued)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

125

Output Leakage Current

(Y and Z)

DE = GND,

-100

µA

0

+250

Driver Short-Circuit Output

Current (Note 5)

-7V

-250

mA

15

Driver Short-Circuit Output

Foldback Current (Note 5)

-7V

-15

mA

Thermal Shutdown Threshold

+150

°C

Thermal Shutdown Hysteresis

15

°C

RECEIVER

125

Input Current (A and B)

DE = GND,

-100

µA

Receiver Differential Threshold

Voltage

-7V

-200

-50

mV

Receiver Input Hysteresis

15

mV

Receiver Input Resistance

-7V

96

k

Ω

LOGIC INTERFACE

Input High Logic Level

(DI, DE, RE)

2/3 x

V

Input Low Logic Level

(DI, DE, RE)

1/3 x

V

±1

µA

Input Impedance on First

Transition

110

k

Ω

Output High Logic Level (RO)

V

Output Low Logic Level (RO)

0.4

V

Receiver Three-State Output

Current (RO)

0

-1

0.01

+1

µA

Receiver Output Short-Circuit

Current (RO)

0

-110

+110

mA

ESD PROTECTION

IEC 61000-4-2 Air Gap Discharge

±15

IEC 61000-4-2 Contact Discharge

±10

A, B, Y, Z to GND

Human Body Model

±30

kV

All Other Pins

(Except A, B, Y, and Z)

Human Body Model

±2

kV