SN65LBC180, SN75LBC180

LOW-POWER DIFFERENTIAL LINE DRIVER AND RECEIVER PAIRS

SLLS174B – FEBRUARY 1994 – REVISED JANUARY 2000

2

POST OFFICE BOX 655303

description (continued)

The devices also provide positive and negative output-current limiting and thermal shutdown for protection from

line fault conditions. The line driver shuts down at a junction temperature of approximately 172

°C.

The SN65LBC180 and SN75LBC180 are available in the 14-pin dual-in-line and small-outline packages. The

SN75LBC180 is characterized for operation over the commercial temperature range of 0

°C to 70°C. The

SN65LBC180 is characterized over the industrial temperature range of – 40

°C to 85°C.

schematics of inputs and outputs

RECEIVER A INPUT

EQUIVALENT OF D, DE, AND RE INPUTS

RECEIVER B INPUT

DRIVER OUTPUT

TYPICAL OF RECEIVER OUTPUT

Output

VCC

VCC

100 k

Ω

NOM

3 k

Ω

NOM

Input

18 k

Ω

NOM

1.1 k

Ω

NOM

1.1 k

Ω

NOM

3 k

Ω

NOM

18 k

Ω

NOM

100 k

Ω

NOM

Input

VCC

Input

VCC

22 k

Ω

VCC

A Output

12 k

Ω

12 k

Ω