TLP2745(TP,E Isolators |
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Allicdata Part #: | TLP2745(TPETR-ND |
Manufacturer Part#: |
TLP2745(TP,E |
Price: | $ 0.29 |
Product Category: | Isolators |
Manufacturer: | Toshiba Semiconductor and Storage |
Short Description: | OPTOISO 5KV PUSH PULL SO6L |
More Detail: | Logic Output Optoisolator Push-Pull, Totem Pole 5... |
DataSheet: | TLP2745(TP,E Datasheet/PDF |
Quantity: | 22495 |
1500 +: | $ 0.26292 |
3000 +: | $ 0.24978 |
7500 +: | $ 0.24414 |
10500 +: | $ 0.23475 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Number of Channels: | 1 |
Inputs - Side 1/Side 2: | 1/0 |
Voltage - Isolation: | 5000Vrms |
Common Mode Transient Immunity (Min): | 30kV/µs |
Input Type: | DC |
Output Type: | Push-Pull, Totem Pole |
Current - Output / Channel: | 50mA |
Data Rate: | -- |
Propagation Delay tpLH / tpHL (Max): | 120ns, 120ns |
Rise / Fall Time (Typ): | 3ns, 3ns |
Voltage - Forward (Vf) (Typ): | 1.55V |
Current - DC Forward (If) (Max): | 15mA |
Voltage - Supply: | 4.5 V ~ 30 V |
Operating Temperature: | -40°C ~ 110°C |
Mounting Type: | Surface Mount |
Package / Case: | 6-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 6-SO |
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Optoisolators are electronic components that are used to provide electrical insulation between two circuits. The TLP2745 is a type of optoisolator that combines logic output with an insulated transistor. This device is specifically designed for use in Telecommunication (TP), Energy (E) and other related applications. In this article, we will look at the application field of TLP2745, its working principle, and various design considerations.
The TLP2745 is an especially useful option when used in Telecommunication and Energy applications. It provides a fast switching time (90 nsec max) and features minimal power consumption (max 0.4 W). The logic output allows for high signal integrity for data transmission between circuits. Furthermore, the device offers high voltage isolation (1500 Vrms) up to 500 kHz and high temperature operation (-40°C to 85°C). The transmission of digital signals safely, coupled with a wide variety of operating conditions makes the TLP2745 attractive for TP,E telecommunication systems.
The TLP2745 employs opto-coupling to pass the information between two separate circuits without any direct electrical connection. A LED emits light when driven by the input voltage and optically couples to a phototransistor switch. The LED transmits digital signals via light across a gap to the phototransistor.
When the LED is ON, the collector-emitter junction of the phototransistor is enable and the output turns ON, connecting an external resister load and providing the logic output. The insulation gate is utilized to isolate the safety sensitive signal, ensuring the two circuits remain completely disconnected. In the reverse scenario, the transistor is OFF and no signal conduction takes place resulting in an OFF state.
The TLP2745 designs considers various design considerations, such as fast switching time, minimal power consumption, high voltage isolation, and temperature operation. The circuit design includes the additional component isolation resistors (R is) to minimize the current paths and hence noise immunity, while limiting the LED current flow. Furthermore, the recommended physical layout of the device ensures proper grounding and low noise conditions. Additionally, enough dissipation must be kept in mind when considering the ambient temperature.
In summary, the TLP2745, an optoisolator with a logic output, is particularly suitable for TP,E applications. It features an insulated transistor that effectively provide electrical insulation between two circuits and a logic output for high signal integrity. The device offers fast switching speeds, minimal power consumption and high voltage isolation and temperature range. The design must consider various design considerations, such as isolation resistors, physical layout, and dissipation, to ensure proper functioning.
The specific data is subject to PDF, and the above content is for reference
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