Allicdata Part #: | HCPL-7721#300-ND |
Manufacturer Part#: |
HCPL-7721#300 |
Price: | $ 2.65 |
Product Category: | Isolators |
Manufacturer: | Broadcom Limited |
Short Description: | OPTOISO 3.75KV PUSH PULL 8DIP GW |
More Detail: | Logic Output Optoisolator 25MBd Push-Pull, Totem P... |
DataSheet: | HCPL-7721#300 Datasheet/PDF |
Quantity: | 1000 |
900 +: | $ 2.41315 |
Series: | -- |
Packaging: | Tube |
Part Status: | Active |
Number of Channels: | 1 |
Inputs - Side 1/Side 2: | 1/0 |
Voltage - Isolation: | 3750Vrms |
Common Mode Transient Immunity (Min): | 10kV/µs |
Input Type: | Logic |
Output Type: | Push-Pull, Totem Pole |
Current - Output / Channel: | 10mA |
Data Rate: | 25MBd |
Propagation Delay tpLH / tpHL (Max): | 40ns, 40ns |
Rise / Fall Time (Typ): | 9ns, 8ns |
Voltage - Forward (Vf) (Typ): | -- |
Current - DC Forward (If) (Max): | -- |
Voltage - Supply: | 4.5 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 8-SMD, Gull Wing |
Supplier Device Package: | 8-DIP Gull Wing |
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HCPL-7721#300 Optoisolators - Logic Output
The HCPL-7721#300 optoisolator is a logic output optoisolator specifically designed for applications where performance must be compact enough to meet the stringent space requirements of modern high-speed electronic systems. It is a very versatile optoisolator, providing a wide range of features including an advance sense pin to detecting the timing and accuracy of the drive opto device, very low power consumption, sensing head drive actuation, and oscillation capability. The chip has three pins: the driver opto device, the sense pin, and the logic output pin.
Application Field:
The major application field of the HCPL-7721#300 optoisolator is mainly in high speed systems, particularly those that require both high frequency and high voltage isolations. It is used for various isolation and sensing applications, such as digital signal transmission, work safety systems and protection of equipment that, due to its environment requirements, requires high-speed operation and low power consumption.
The HCPL-7721#300 is also very useful for applications needing a reliable signal transfer between circuits when a significant current load could be present on the signals lines, such as in applications with lots of analog signals. Its logic output pin also makes it useful in applications need precise control and timing.
Working Principle:
The HCPL-7721#300 optoisolator is based on a circuit employing two optocouplers. First, a light-emitting diode is used to transmit a signal from the driver opto device to the sense pin. This transfers the signal to the receiver opto device, and the logic output pin drives a logic circuit to complete the signal transmission. This two-stage optocoupler ensures that the receiver opto device receives the signal at an initial transient voltage level far below that of the source, minimizing any disruption due to current loads.
The chip also has an advance sense pin to detect the timing and accuracy of the drive opto device. The signal from the sense pin is integrated within the optocoupler, providing increased accuracy with very high frequency orientated signal flows. This allows the receiver opto device to detect the angular disturbance of the drive opto device in order to generate a precisely timed output.
The HCPL-7721#300 also features a low power consumption of 2.5mA, as well as sensing head drive actuation and oscillation capability for increased signal accuracy. The sensing head produces a short circuit between the driver opto device and the sense pin, enabling very small frequency signals to be detected and ensuring a very precise and accurate signal output.
Conclusion:
The HCPL-7721#300 optoisolator is a logic output optoisolator specifically designed for applications with demanding requirements of high speed and low power consumption. With features such as an advance sense pin, very low power consumption, and oscillation capability, it can be used in a wide variety of applications, such as digital signal transmission, work safety systems, or protection of equipment in difficult environments.
The specific data is subject to PDF, and the above content is for reference
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