Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR) |
| Part Status | Obsolete |
| Applications | Secondary-Side Controller, Synchronous Rectifier |
| Voltage - Supply | 35V |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
The NCP4308DMTTWG is a high-performance secondary-side synchronous rectification (SR) controller, designed for use in switch-mode power supplies. It is particularly suitable for flyback converters, which are commonly used in applications like adapters, chargers, and consumer electronics. The device aims to improve power efficiency by replacing traditional diode rectifiers with a MOSFET to minimize conduction losses.
Key features of the NCP4308DMTTWG include adaptive gate drive, which optimizes the timing for turning the MOSFET on and off, Zero Voltage Switching (ZVS) for reducing switching losses, and a wide range of operating frequencies. It also features protection mechanisms like over-current and over-voltage protection to enhance reliability and safety. The controller is packaged in a compact DFN or SOIC package, facilitating its use in space-constrained designs.
Overall, the NCP4308DMTTWG helps improve the efficiency and performance of power supply systems, aligning with industry trends towards smaller and more energy-efficient electronic devices.
Key features of the NCP4308DMTTWG include adaptive gate drive, which optimizes the timing for turning the MOSFET on and off, Zero Voltage Switching (ZVS) for reducing switching losses, and a wide range of operating frequencies. It also features protection mechanisms like over-current and over-voltage protection to enhance reliability and safety. The controller is packaged in a compact DFN or SOIC package, facilitating its use in space-constrained designs.
Overall, the NCP4308DMTTWG helps improve the efficiency and performance of power supply systems, aligning with industry trends towards smaller and more energy-efficient electronic devices.
Equivalent
The NCP4308DMTTWG is a secondary-side synchronous rectifier controller from ON Semiconductor. Equivalent products include:
1. UCC24610 by Texas Instruments: A synchronous rectifier controller for flyback and LLC resonant converters.
2. FAN6204 by Fairchild (now ON Semiconductor): A synchronous rectification controller for flyback converters.
3. SRK2000 by STMicroelectronics: A controller for secondary-side synchronous rectification in flyback converters.
Always verify compatibility in terms of specifications and application requirements.
1. UCC24610 by Texas Instruments: A synchronous rectifier controller for flyback and LLC resonant converters.
2. FAN6204 by Fairchild (now ON Semiconductor): A synchronous rectification controller for flyback converters.
3. SRK2000 by STMicroelectronics: A controller for secondary-side synchronous rectification in flyback converters.
Always verify compatibility in terms of specifications and application requirements.
Features
The NCP4308DMTTWG is a high-performance secondary-side synchronous rectification (SR) controller specifically designed for switch-mode power supplies. Key features include:
1. Synchronous Rectification: Enhances efficiency by allowing the replacement of diodes with low-resistance MOSFETs.
2. Wide Supply Voltage Range: Operates effectively over a broad range of supply voltages.
3. Adaptive Gate Drive: Adjusts the drive strength for optimal performance across various load conditions.
4. Light Load Operation: Features to improve efficiency at light loads, reducing power consumption in standby or low-power modes.
5. Protection Features: Includes mechanisms such as over-temperature protection and under-voltage lockout to ensure device reliability and safety.
6. Timing Control: Offers precise control over the switching times to enhance efficiency and minimize losses.
7. Compatibility: Designed to be compatible with various power supply topologies, including flyback converters.
These features make the NCP4308DMTTWG ideal for applications requiring efficient power conversion, such as adapters, chargers, and other consumer electronics.
1. Synchronous Rectification: Enhances efficiency by allowing the replacement of diodes with low-resistance MOSFETs.
2. Wide Supply Voltage Range: Operates effectively over a broad range of supply voltages.
3. Adaptive Gate Drive: Adjusts the drive strength for optimal performance across various load conditions.
4. Light Load Operation: Features to improve efficiency at light loads, reducing power consumption in standby or low-power modes.
5. Protection Features: Includes mechanisms such as over-temperature protection and under-voltage lockout to ensure device reliability and safety.
6. Timing Control: Offers precise control over the switching times to enhance efficiency and minimize losses.
7. Compatibility: Designed to be compatible with various power supply topologies, including flyback converters.
These features make the NCP4308DMTTWG ideal for applications requiring efficient power conversion, such as adapters, chargers, and other consumer electronics.
Pinout
The NCP4308DMTTWG is a synchronous rectifier controller designed to improve the efficiency of switched-mode power supplies. It comes in a small package with specific pin count and functions:
- Pin Count: The NCP4308DMTTWG is typically available in a 6-pin package.
- Pin Functions:
1. GND: Ground reference for the device.
2. DRV: Gate driver output to control the external MOSFET.
3. VCC: Supply voltage for the internal circuitry of the controller.
4. VSNS: Voltage sense pin for detecting the voltage across the synchronous MOSFET.
5. CSNS: Current sense input to monitor the current flow and provide overcurrent protection.
6. ZCD: Zero crossing detection input to optimize the timing of the MOSFET switching.
This device is used primarily in applications where improved efficiency and reliability of power supplies are critical.
- Pin Count: The NCP4308DMTTWG is typically available in a 6-pin package.
- Pin Functions:
1. GND: Ground reference for the device.
2. DRV: Gate driver output to control the external MOSFET.
3. VCC: Supply voltage for the internal circuitry of the controller.
4. VSNS: Voltage sense pin for detecting the voltage across the synchronous MOSFET.
5. CSNS: Current sense input to monitor the current flow and provide overcurrent protection.
6. ZCD: Zero crossing detection input to optimize the timing of the MOSFET switching.
This device is used primarily in applications where improved efficiency and reliability of power supplies are critical.
Manufacturer
The NCP4308DMTTWG is manufactured by onsemi, formerly known as ON Semiconductor. onsemi is a semiconductor company that designs, manufactures, and sells a wide range of semiconductor components used in various electronic devices and systems. The company focuses on providing energy-efficient solutions for automotive, industrial, cloud, and IoT applications. Their product portfolio includes power management, analog, sensors, logic, timing, connectivity, discrete, and custom devices. onsemi is known for its commitment to innovation and sustainability, aiming to deliver products that help reduce energy consumption and environmental impact.
Application
The NCP4308DMTTWG is a synchronous rectifier controller used in power conversion applications to improve efficiency. Its primary application areas include switch-mode power supplies (SMPS), adapters, and chargers for consumer electronics. It is also used in telecom and datacom power systems to enhance energy efficiency by reducing losses in the rectification stage. Additionally, the NCP4308DMTTWG can be employed in industrial power supplies where efficiency and thermal management are critical. The device's ability to optimize rectification in high-frequency applications makes it suitable for modern electronic devices requiring compact and efficient power solutions.
Package
The NCP4308DMTTWG is a controller from ON Semiconductor, packaged in a TSSOP-14 (Thin Shrink Small Outline Package with 14 pins).
