Table
| Item | Symbol | Conditions | Min. | Std. | Max. |
|
|
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|
|
|
|
LED (input) | Forward voltage | VF | IF=10 mA | 1.0 V | 1.2 V | 1.6 V |
| Reverse current | IR | VR=5 V | | | 10 ∝A |
Photo- | Dark current | ICEO | IF=0 mA, VCE=10 V | | | 200 nA |
transistor |
|
|
|
|
|
|
(output) |
|
|
|
|
|
|
Transfer | Photoelectric current | IC | IF=10 mA, VCE=5 V | 150 ∝A | | 600 ∝A |
characteristics | Leak current | ILEAK | IF=10 mA, VCE=5 V | | | ∝ |
|
|
| 1 A | |||
| Collector saturation | VCE(sat) | IF=10 mA, IC=5 ∝A | | | 0.5V |
| voltage |
|
|
|
|
|
| Response time | tr | IC=1mA, VCC=5 V | | 5∝s | |
| (at rise) |
| RL=100Ω |
|
|
|
| Response time | tf | | 5∝s | | |
| (at fall) |
|
|
|
|
|
3.7.2Sample External Circuit
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| LTP F Series |
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| |||
Vdd (5 V) | Vdd (5 V) | ||||||
|
| 47 kΩ |
|
| 220 Ω | ||
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| |||
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|
| |||
74HC04 |
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|
| PS | ||
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| |||||
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| |||
To CPU port |
|
| VPS | ||||
|
| 0.1 ∝F |
|
| GND | ||
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| ||||
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| ||||
GND |
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| |||||
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| |||
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| ∗The PS signal is high when there is no paper. | ||
Figure