6N139TVM 查看數據表（PDF） - Fairchild Semiconductor

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6N139TVM

Low Input Current High Gain Split Darlington Optocouplers

Fairchild Semiconductor 

Electrical Characteristics (Continued) TA = 25°C unless otherwise specified)

Current Limiting Resistor Calculations

R1 (Non-Invert) = VDD1 – VDF – VOL1

IF

R1 (Invert) = VDD1 – VOH1 – VDF

IF

R2 = VDD2 = VOLX (@ IL – I2)

IL

Where:

VDD1 = Input Supply Voltage

VDD2 = Output Supply Voltage

VDF = Diode Forward Voltage

VOL1 = Logic “0” Voltage of Driver

VOH1 = Logic “1” Voltage of Driver

IF = Diode Forward Current

VOLX = Saturation Voltage of

Output Transistor

IL = Load Current Through

Resistor R2

I2 = Input Current of Output Gate

OUTPUT

INPUT

R1 (V)

CMOS

@ 5V

CMOS

@ 10V

74XX

74LXX

74SXX

74LSXX

74HXX

R2 (V) R2 (V) R2 (V) R2 (V) R2 (V)

CMOS NON-INV. 2000 1000 2200 750 1000 1000

@ 5V

INV.

510

CMOS NON-INV. 5100

@ 10V INV. 4700

74XX NON-INV. 2200

INV. 180

74LXX NON-INV. 1800

INV. 100

74SXX NON-INV. 2000

INV. 360

74LSXX NON-INV. 2000

INV. 180

74HXX NON-INV. 2000

INV. 180

R2 (V)

1000

R2 (V)

560

Fig. 1 Resistor Values for Logic Interface

VDD1

VDD2

VDD2

1

2

3

IN

R1

4

8

7

R2

6

5

1

IN

2

OUT

3

R1

4

8

7

R2

6

OUT

5

Fig. 2 Non-Inverting Logic Interface

Fig. 3 Inverting Logic Interface

©2009 Fairchild Semiconductor Corporation

6N138M, 6N139M, HCPL2730M, HCPL2731M Rev. 1.0.2

6

www.fairchildsemi.com

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