Hi-Reliability Optically Coupled Isolator

3C91C, 3C92C (TX), 3N243, 3N244, 3N245

(TX), 3N262

© TT electronics plc

General Note

TT Electronics reserves the right to make changes in product specification without

notice or liability. All information is subject to TT Electronics’ own data and is

considered accurate at time of going to print.

TT Electronics | OPTEK Technology

2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200

www.ttelectronics.com | sensors@ttelectronics.com

Rev B 02/2020 Page 5

Electrical Specifications

Electrical Characteristics (TA = 25° C unless otherwise noted)

SYMBOL

PARAMETER

MIN

TYP

MAX

UNITS

TEST CONDITIONS

Coupled

CIO

Input-to-Output Capacitance

3C91C, 3C92C (TX)

3N243, 3N244, 3N245 (TX)

3N262

-

-

-

2

-

-

2.5

5.0

5.0

pF

f = 1 MHz

VIO = 0 V, f = 1.00 MHz

(1)

VIO = 0 V, f = 1.00 MHz

(1)

IIO

Leakage Input -to-Output

3N243, 3N244, 3N245 (TX)

3N262

-

-

-

-

100

10

nA

VIO = ± 1.00 kVDC

(1)

VIO = ± 1.00 kVDC

(1)

RIO

Isolation Resistance

3C91C, 3C92C (TX)

10

9

-

-

Ω

VIO = +1 kV

tr

Output Rise Time

3N243, 3N244, 3N245 (TX)

3N262

-

-

-

-

10

20

µs

VCC = 10.0 V, IF = 10.0 mA, RL = 100 Ω

(2)

VCC = 10.0 V, IF = 5.0 mA, RL = 100 Ω

(2)

tf

Output Fall Time

3N243, 3N244, 3N245 (TX)

3N262

-

-

-

-

10

10

µs

VCC = 10.0 V, IF = 10.0 mA, RL = 100 Ω

(2)

VCC = 10.0 V, IF = 5.0 mA, RL = 100 Ω

(2)

VF vs IF vs TA

0.50

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

1.50

0

10

20

30

40

50

IF (mA)

-55

-35

-15

+5

+25

+45

+65

+85

+105

+125

+135

IC(ON) vs IF vs TA

0.0

0.5

1.0

1.5

2.0

2.5

0

10

20

30

40

50

IF (mA)

-55

-35

-15

+5

+25

+45

+65

+85

+105

+125

+135

Notes:

1. Measured with input leads shorted together and output leads shorted together.

2. The input waveform is supplied by a generator with the following characteristics: ZOUT = 50 Ω, tr ≤ 15 ns, duty cycle ~ 1%, pulse width ~ 100 ms.