| Allicdata Part #: | PS9905-NR-AX-ND |
| Manufacturer Part#: |
PS9905-NR-AX |
| Price: | $ 0.00 |
| Product Category: | Isolators |
| Manufacturer: | CEL |
| Short Description: | OPTOISO 7.5KV GATE DRIVER 8LSDIP |
| More Detail: | 2.6A Gate Driver Optical Coupling 7500Vrms 1 Chann... |
| DataSheet: |  PS9905-NR-AX Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Current - Output High, Low: | 2A, 2A |
| Approvals: | CSA, SEMKO, UL |
| Supplier Device Package: | 8-LSDIP |
| Package / Case: | 8-SOIC (0.543", 13.80mm Width) |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 110°C |
| Voltage - Supply: | 15 V ~ 30 V |
| Current - DC Forward (If) (Max): | 25mA |
| Voltage - Forward (Vf) (Typ): | 1.56V |
| Current - Peak Output: | 2.6A |
| Series: | -- |
| Rise / Fall Time (Typ): | 60ns, 60ns |
| Pulse Width Distortion (Max): | 75ns |
| Propagation Delay tpLH / tpHL (Max): | 160ns, 160ns |
| Common Mode Transient Immunity (Min): | 25kV/µs |
| Voltage - Isolation: | 7500Vrms |
| Number of Channels: | 1 |
| Technology: | Optical Coupling |
| Part Status: | Obsolete |
| Packaging: | Tube |
Description
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PS9905-NR-AX application field and working principle
The PS9905-NR-AX isolators are a type of gate driver, which are designed to improve electrical isolation between logic and power controllers, prevent disruptive current issues, and eliminate crosstalk between voltage domains.These isolators use an anodeconjugated transistor structure to electrically isolate the signals from the power source, allowing the logic circuit to control the gate voltage of the power device without generating disruptive noise on the logic side. This ensures reliable communication between the power circuit and the logic circuit, and helps to eliminate crosstalk.The working principle of the PS9905-NR-AX isolators is based on a classic opto-isolator system. When the input logic signal is applied, it triggers a voltage-controlled optocoupler. This optocoupler is followed by a transistor switch, which amplifies the input signal and triggers the breakdown voltage of the isolator. This triggers a voltage-controlled isolator (VCI), which is a high-voltage, low-impedance transistor. The VCI then drives a power transistor, which is used to drive the logic-controlled gate voltage of the power device. This isolator can be configured to provide both high and low-side gate drive.This type of isolator not only provides a reliable isolation between the power controller and the logic circuit, but also protects both parties from short-circuiting. Furthermore, it eliminates the need for an additional speed loop, to ensure that the circuit functions reliably. The isolation enables the power circuit to be controlled separately from the logic circuit, while also avoiding additional noise issues.The PS9905-NR-AX isolator is highly efficient, and can support frequencies of up to 100MHz. Additionally, it allows for a minimum input voltage of 2V and is able to handle up to 5A of gate current. This makes it ideal for applications such as server power management, LED drivers, and motor controllers.In conclusion, the PS9905-NR-AX isolator is an excellent choice for applications which require a reliable electrical isolation between the logic and power controllers. It is highly efficient, and the opto-coupler based design allows for a minimum input voltage of 2V, a maximum frequency of 100MHz and up to 5A of gate current. This enables the circuit to operate reliably, and ensures that the logic and power controllers are protected from short-circuits and crosstalk.
The specific data is subject to PDF, and the above content is for reference
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