SN55LBC176, SN65LBC176, SN65LBC176Q, SN75LBC176

DIFFERENTIAL BUS TRANSCEIVERS

SLLS067G − AUGUST 1990 − REVISED APRIL 2006

9

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

−IOH

+IOL

VOL

VID

VOH

51

Ω

CL = 15 pF

(see Note B)

Output

1.5 V

0 V

TEST CIRCUIT

VOLTAGE WAVEFORMS

1.5 V

3 V

0 V

Input

Output

1.3 V

VOH

VOL

tPHL

tPLH

Generator

(see Note A)

1.5 V

1.3 V

NOTES: A. The input pulse is supplied by a generator having the following characteristics: PRR

≤ 1 MHz, 50% duty cycle, tr ≤ 6 ns, tf ≤ 6 ns,

ZO =50 Ω.

B. CL includes probe and jig capacitance.

Figure 7. Receiver Test Circuit and Voltage Waveforms

THERMAL CHARACTERISTICS − D PACKAGE

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Junction−to−ambient thermal reisistance,

θJA†

Low-K board, no air flow

199.4

Junction−to−ambient thermal reisistance,

θJA†

High-K board, no air flow

119

°C/W

Junction−to−board thermal reisistance,

θJB

High-K board, no air flow

67

°C/W

Junction−to−case thermal reisistance,

θJC

46.6

Average power dissipation, P(AVG)

RL = 54 Ω, input to D is 10 Mbps 50% duty

cycle square wave, VCC = 5.25 V,

TJ = 130 °C.

330

mW

Thermal shutdown junction temperature, TSD

165

°C

† See TI application note literature number SZZA003, Package Thermal Characterization Methodologies, for an explanation of this parameter.