VCC = 5 V, IC(on) = 2 mA, RL = 100 Ω, See Figure 1

µs

TIL920, TIL921, TIL922, TIL920A, TIL921A, TIL922A

TIL920B, TIL921B, TIL922B

SINGLE/DUAL/QUAD CHANNEL OPTOCOUPLERS

SOOS032−D3908, FEBRUARY 1992

POST OFFICE BOX 655303

3

PARAMETER†

TEST CONDITIONS

TYP

UNIT

tr

Rise time

6

tf

Fall time

6

† These parameters apply to either direction of the input current.

PARAMETER MEASUREMENT INFORMATION

Adjust amplitude of input pulse for IC(on) = 2 mA

Input

(see Note A)

Output

(see Note B)

RL = 100 Ω

47

Ω

VCC = 5 V

+

−

90%

10%

Output

Input

tf

tr

0

0

tr

tf

90%

10%

90%

10%

90%

10%

TEST CIRCUIT

VOLTAGE WAVEFORMS

NOTES: A. The input waveform is supplied by a generator with the following characteristics: Zo = 50 Ω, tr ≤ 15 ns, duty cycle = 1%.

B. The output waveform is monitored on an oscilloscope with the following characteristics: tr ≤ 12 ns, Ri ≥ 1 MΩ, Ci ≤ 20 pF.

Figure 1. Switching Times

TYPICAL CHARACTERISTICS

0

0

0.4

0.8

40

80

INPUT CURRENT

vs

INPUT VOLTAGE

100

1.2

1.6

60

20

VF − Input Voltage − V

TA = 25°C

−20

−40

−60

−80

− 100

−1.6 −1.2

− 0.8

− 0.4

Figure 2