HCPL-2730SDV 查看數據表（PDF） - Fairchild Semiconductor
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HCPL-2730SDV Datasheet PDF : 15 Pages
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Electrical Characteristics (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
OUTPUT
INPUT
R1 (V)
CMOS
@ 5V
CMOS
@ 10 V
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
R2 (V)
1000
R2 (V)
560
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
CMOS NON-INV. 5100
@ 10 V 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
IL - Load Current Through
Resistor R2
I2 - Input Current of Output Gate
INV. 180
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
6
Single-Channel: 6N138, 6N139 Dual-Channel: HCPL-2730, HCPL-2731 Rev. 1.0.2
www.fairchildsemi.com
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