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SI9945BDY
+BOMMOSFET 2N-CH 60V 4.3A 8SOP
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メーカーUMW社
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メーカー品番 #SI9945BDY
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データシート SI9945BDY DataSheet
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在庫状況4325
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Part Status | Active |
| Technology | MOSFET (Metal Oxide) |
| Configuration | 2 N-Channel (Dual) |
| Drain to Source Voltage (Vdss) | 60V |
| Current - Continuous Drain (Id) @ 25°C | 4.3A (Ta), 5.3A (Tc) |
| Rds On (Max) @ Id, Vgs | 36mOhm @ 4.3A, 10V |
| Vgs(th) (Max) @ Id | 3V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 20nC @ 10V |
| Input Capacitance (Ciss) (Max) @ Vds | 665pF @ 15V |
| Power - Max | 2W (Ta), 3.1W (Tc) |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOP |
概要
Description
The SI9945BDY is a high-performance, low-voltage MOSFET designed for various applications, including power management and switching circuits. It features a low on-resistance and low gate charge, making it suitable for efficient power conversion systems, such as DC-DC converters and battery management systems. The device supports a wide range of operating voltages, enhancing its versatility in different electronic devices.
Key specifications include a maximum drain-source voltage (V_DS) rating, which allows it to handle significant power levels, and a fast switching speed that minimizes energy losses during operation. The SI9945BDY also incorporates thermal protection features, ensuring reliability under high-temperature conditions. Its compact package design facilitates easy integration into space-constrained applications.
Overall, the SI9945BDY is an ideal choice for engineers looking to enhance the efficiency and performance of their electronic designs.
Key specifications include a maximum drain-source voltage (V_DS) rating, which allows it to handle significant power levels, and a fast switching speed that minimizes energy losses during operation. The SI9945BDY also incorporates thermal protection features, ensuring reliability under high-temperature conditions. Its compact package design facilitates easy integration into space-constrained applications.
Overall, the SI9945BDY is an ideal choice for engineers looking to enhance the efficiency and performance of their electronic designs.
Equivalent
The SI9945BDY is a high-speed, low-on-resistance N-channel MOSFET. Equivalent products include the NTD4906N, IRF630, and BSS123. Always check datasheets for specifications such as voltage, current ratings, and package types to ensure compatibility for your application.
Features
The SI9945BDY is a N-channel MOSFET designed for high-performance applications. Key features include:
1. Voltage Rating: It typically supports a drain-source voltage (Vds) of up to 30V.
2. Current Rating: Capable of handling continuous drain current (Id) around 10A, enabling efficient power management.
3. Rds(on): Features a low on-resistance (Rds(on)), typically around 10mΩ, which reduces power loss and improves efficiency.
4. Gate Threshold Voltage: Offers a low gate threshold voltage (Vgs(th)), allowing for easy driving with lower voltage levels.
5. Fast Switching: Optimized for fast switching speeds, making it suitable for applications like DC-DC converters and power management circuits.
6. Thermal Performance: Designed with good thermal characteristics to handle heat effectively during operation.
7. Package: Available in a surface-mount package, facilitating compact designs in electronic circuits.
These features make the SI9945BDY suitable for a variety of applications including power supplies, motor drivers, and other switching applications.
1. Voltage Rating: It typically supports a drain-source voltage (Vds) of up to 30V.
2. Current Rating: Capable of handling continuous drain current (Id) around 10A, enabling efficient power management.
3. Rds(on): Features a low on-resistance (Rds(on)), typically around 10mΩ, which reduces power loss and improves efficiency.
4. Gate Threshold Voltage: Offers a low gate threshold voltage (Vgs(th)), allowing for easy driving with lower voltage levels.
5. Fast Switching: Optimized for fast switching speeds, making it suitable for applications like DC-DC converters and power management circuits.
6. Thermal Performance: Designed with good thermal characteristics to handle heat effectively during operation.
7. Package: Available in a surface-mount package, facilitating compact designs in electronic circuits.
These features make the SI9945BDY suitable for a variety of applications including power supplies, motor drivers, and other switching applications.
Pinout
The SI9945BDY is a high-speed MOSFET driver with a pin count of 8. It is designed to drive power MOSFETs and IGBTs in various applications.
Pin Functions:
1. VDD (Pin 1): Power supply input.
2. GND (Pin 2): Ground reference.
3. IN (Pin 3): Input signal for driving the MOSFET.
4. OUT (Pin 4): Output to drive the gate of the MOSFET.
5. RBOOT (Pin 5): Bootstrapped capacitor connection for high-side driving.
6. VB (Pin 6): Bootstrapped supply voltage for high-side driver.
7. VS (Pin 7): Source connection for the high-side driver.
8. COM (Pin 8): Common pin for low-side and high-side control.
This driver is optimized for high-speed switching applications and provides efficient gate drive for both high-side and low-side configurations.
Pin Functions:
1. VDD (Pin 1): Power supply input.
2. GND (Pin 2): Ground reference.
3. IN (Pin 3): Input signal for driving the MOSFET.
4. OUT (Pin 4): Output to drive the gate of the MOSFET.
5. RBOOT (Pin 5): Bootstrapped capacitor connection for high-side driving.
6. VB (Pin 6): Bootstrapped supply voltage for high-side driver.
7. VS (Pin 7): Source connection for the high-side driver.
8. COM (Pin 8): Common pin for low-side and high-side control.
This driver is optimized for high-speed switching applications and provides efficient gate drive for both high-side and low-side configurations.
Manufacturer
The SI9945BDY is manufactured by Silicon Labs, a company that specializes in designing and manufacturing semiconductors and software solutions. Founded in 1996, Silicon Labs focuses on providing high-performance mixed-signal and analog-intensive solutions. Their product offerings include microcontrollers, wireless connectivity solutions, sensors, and audio products, catering to various industries such as IoT (Internet of Things), automotive, industrial, and consumer electronics.
Silicon Labs is recognized for its innovation in low-power, high-efficiency technologies, making it a key player in the semiconductor industry. The company emphasizes enabling connectivity and performance for smart, connected devices, which aligns with the growing demand for advanced electronic solutions in a rapidly evolving market.
Silicon Labs is recognized for its innovation in low-power, high-efficiency technologies, making it a key player in the semiconductor industry. The company emphasizes enabling connectivity and performance for smart, connected devices, which aligns with the growing demand for advanced electronic solutions in a rapidly evolving market.
Application
The SI9945BDY is a high-speed, low-voltage MOSFET driver primarily used in power management applications. Its application areas include:
1. Switching Power Supplies: Enhancing efficiency in DC-DC converters.
2. Motor Control: Driving MOSFETs in inverter circuits for brushless DC motors.
3. Class D Audio Amplifiers: Providing high-speed switching for improved audio performance.
4. Battery Management Systems: Managing MOSFETs in charging and discharging circuits.
5. Telecommunications: Powering RF amplifiers and other high-frequency applications.
Its features support fast switching, low gate drive power, and good thermal performance, making it suitable for various high-efficiency applications.
1. Switching Power Supplies: Enhancing efficiency in DC-DC converters.
2. Motor Control: Driving MOSFETs in inverter circuits for brushless DC motors.
3. Class D Audio Amplifiers: Providing high-speed switching for improved audio performance.
4. Battery Management Systems: Managing MOSFETs in charging and discharging circuits.
5. Telecommunications: Powering RF amplifiers and other high-frequency applications.
Its features support fast switching, low gate drive power, and good thermal performance, making it suitable for various high-efficiency applications.
Package
The SI9945BDY is packaged in a DPD (Dual Flat No-lead) format, specifically a SOIC-8 package. This type of package features eight pins and is designed for surface mounting on printed circuit boards (PCBs).
