SN65176B datasheet(3/21 Pages) TI

3 / 21 page

SN65176B, SN75176B

DIFFERENTIAL BUS TRANSCEIVERS

SLLS101D – JULY 1985 – REVISED APRIL 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

schematics of inputs and outputs

Output

Ω

NOM

TYPICAL OF RECEIVER OUTPUT

Input/Output

Port

960

Ω

NOM

16.8 k

Ω

NOM

TYPICAL OF A AND B I/O PORTS

Driver input: R(eq) = 3 kΩ NOM

Enable inputs: R(eq )= 8 kΩ NOM

R(eq) = Equivalent Resistor

R(eq)

VCC

EQUIVALENT OF EACH INPUT

VCC

Input

960

Ω

NOM

VCC

GND

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage, VCC (see Note 1)

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range at any bus terminal

–10 V to 15 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Enable input voltage, VI

5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

θJA (see Notes 2 and 3): D package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

P package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

PS package

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating virtual junction temperature, TJ

150

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, Tstg

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† 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 under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. All voltage values, except differential input/output bus voltage, are with respect to network ground terminal.

2. Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable

ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.

3. The package thermal impedance is calculated in accordance with JESD 51-7.

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