TPIC2802

OCTAL INTELLIGENT-POWER SWITCH

WITH SERIAL INPUT

SLIS013 – APRIL 1992

2–7

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

tw(RST)

RST

10%

tsu1

tsu2

tw(SCLKH)

tw(SCLKL)

tr

tf

SIOE

SCLK

tsu3

Valid

Don’t Care

th

Don’t Care

Don’t Care

Valid

SI

VIH

VIL

VIH

VIL

VIH

VIL

VIH

VIL

10%

10%

10%

10%

10%

90%

90%

10%

90%

10%

10%

90%

90%

90%

10%

Figure 1. Input Timing Waveforms

5 V

TPIC2802

Under

Test

GND

SO

SIOE

2.5 V

RL = 1 kΩ

Output

CL = 20 pF

(see Note A)

10 ns

90%

90%

10%

10%

2.5 V

2.5 V

10 ns

ten

tdis

50%

ten

tdis

50%

50%

50%

5 V

0 V

2.5 V

VOL

VOH

SIOE

Input

SO

Output

Waveform 1

(see Note B)

SO

Output

Waveform 2

(see Note B)

10

VCC

9

8

Input

5

TEST CIRCUIT

FOR ENABLE AND DISABLE TIMES

VOLTAGE WAVEFORMS

2.5 V

2.5 V

NOTES: A. CL includes probe and jig capacitance.

B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control when SIOE

is high. Waveform 2 is for an output with internal conditions such that the low-to-high transition of SIOE causes the output to switch

from off to on.

Figure 2. Test Circuit and Voltage Waveforms for Enable and Disable Times