規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Output Isolation | Isolated |
| Internal Switch(s) | No |
| Topology | Flyback |
| Voltage - Start Up | 17 V |
| Voltage - Supply (Vcc/Vdd) | 9V ~ 28V |
| Frequency - Switching | 360kHz |
| Fault Protection | Current Limiting, Over Load, Over Power, Over Temperature, Over Voltage, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Supplier Device Package | 9-SOIC |
概述
Description
The NCP1340B8D1R2G is a highly efficient, compact, and robust PWM controller designed by ON Semiconductor for offline power supply applications. It integrates a range of features suitable for optimizing the performance of power converters. This controller is particularly effective in improving efficiency through its quasi-resonant mode operation, which reduces switching losses.
Key features of the NCP1340 include valley-lockout switching, frequency foldback, and skip-cycle functionality, all contributing to low standby power consumption and high efficiency across varying loads. The device is equipped with a robust protection suite, including overvoltage, overcurrent, and thermal shutdown protections, enhancing system reliability.
Its wide operating frequency range allows for design flexibility, making it suitable for applications such as adapters, televisions, and other consumer electronics. The NCP1340 also supports a wide input voltage range, enhancing its adaptability to different global power standards. Overall, the NCP1340B8D1R2G is ideal for designers seeking to achieve a balance between performance, efficiency, and safety in power supply applications.
Key features of the NCP1340 include valley-lockout switching, frequency foldback, and skip-cycle functionality, all contributing to low standby power consumption and high efficiency across varying loads. The device is equipped with a robust protection suite, including overvoltage, overcurrent, and thermal shutdown protections, enhancing system reliability.
Its wide operating frequency range allows for design flexibility, making it suitable for applications such as adapters, televisions, and other consumer electronics. The NCP1340 also supports a wide input voltage range, enhancing its adaptability to different global power standards. Overall, the NCP1340B8D1R2G is ideal for designers seeking to achieve a balance between performance, efficiency, and safety in power supply applications.
Equivalent
The NCP1340B8D1R2G is a high-performance PWM controller by ON Semiconductor. Equivalent products include:
1. UCC28710 by Texas Instruments: An off-line flyback switcher with CV/CC regulation.
2. NCP12510 by ON Semiconductor: A fixed-frequency PWM controller.
3. LNK304PN by Power Integrations: A low-power off-line switcher for isolated flyback applications.
These alternatives may vary slightly in specifications, so a detailed comparison is recommended based on your application needs.
1. UCC28710 by Texas Instruments: An off-line flyback switcher with CV/CC regulation.
2. NCP12510 by ON Semiconductor: A fixed-frequency PWM controller.
3. LNK304PN by Power Integrations: A low-power off-line switcher for isolated flyback applications.
These alternatives may vary slightly in specifications, so a detailed comparison is recommended based on your application needs.
Features
The NCP1340B8D1R2G is a highly efficient, quasi-resonant flyback controller designed for use in power converters. Key features include:
1. Quasi-Resonant Operation: Enhances efficiency by minimizing switching losses during high-frequency operation.
2. Wide Input Voltage Range: Supports a broad range of input voltages, suitable for different power supply designs.
3. Integrated Protections: Offers overvoltage, overcurrent, and overtemperature protections to enhance system reliability.
4. Low Standby Power: Incorporates features to reduce power consumption during no-load or light-load conditions, achieving low standby power.
5. Adjustable Valley Switching: Allows optimization of switching frequency to reduce EMI and enhance efficiency.
6. Frequency Foldback: Reduces switching frequency under light-load conditions to maintain efficiency and reduce power loss.
7. Eco Mode: Provides improved light-load efficiency by entering deep frequency foldback.
8. Soft Start: Gradually ramps up the power output during startup to prevent stress on components.
9. Burst Mode Operation: Enhances efficiency during low power conditions.
These features make the NCP1340B8D1R2G suitable for applications requiring efficient, reliable power conversion with minimal standby power consumption.
1. Quasi-Resonant Operation: Enhances efficiency by minimizing switching losses during high-frequency operation.
2. Wide Input Voltage Range: Supports a broad range of input voltages, suitable for different power supply designs.
3. Integrated Protections: Offers overvoltage, overcurrent, and overtemperature protections to enhance system reliability.
4. Low Standby Power: Incorporates features to reduce power consumption during no-load or light-load conditions, achieving low standby power.
5. Adjustable Valley Switching: Allows optimization of switching frequency to reduce EMI and enhance efficiency.
6. Frequency Foldback: Reduces switching frequency under light-load conditions to maintain efficiency and reduce power loss.
7. Eco Mode: Provides improved light-load efficiency by entering deep frequency foldback.
8. Soft Start: Gradually ramps up the power output during startup to prevent stress on components.
9. Burst Mode Operation: Enhances efficiency during low power conditions.
These features make the NCP1340B8D1R2G suitable for applications requiring efficient, reliable power conversion with minimal standby power consumption.
Pinout
The NCP1340B8D1R2G is a high-performance flyback controller IC designed by ON Semiconductor, and it typically comes in an 8-pin SOIC package. The main functions of this controller include regulating power in isolated flyback converters, making it suitable for use in power adapters, chargers, and offline power supplies.
Here is a brief overview of its pin functions:
1. VCC: Power supply input for the IC.
2. FB: The feedback pin is used for voltage regulation and loop compensation.
3. CS: Current sense input used for peak current mode control.
4. GND: Ground reference for the IC.
5. DRV: The drive output is connected to the gate of an external MOSFET.
6. HV: High voltage startup input, used for initial power-up.
7. FLT: Fault pin, used for protection features like overvoltage and overcurrent.
8. Skip/Latch: Configures the skip/latch mode for low power consumption during no-load conditions.
These features make the NCP1340 series ideal for applications requiring high efficiency and advanced protection mechanisms.
Here is a brief overview of its pin functions:
1. VCC: Power supply input for the IC.
2. FB: The feedback pin is used for voltage regulation and loop compensation.
3. CS: Current sense input used for peak current mode control.
4. GND: Ground reference for the IC.
5. DRV: The drive output is connected to the gate of an external MOSFET.
6. HV: High voltage startup input, used for initial power-up.
7. FLT: Fault pin, used for protection features like overvoltage and overcurrent.
8. Skip/Latch: Configures the skip/latch mode for low power consumption during no-load conditions.
These features make the NCP1340 series ideal for applications requiring high efficiency and advanced protection mechanisms.
Manufacturer
The NCP1340B8D1R2G is manufactured by ON Semiconductor. ON Semiconductor, now known as onsemi, is a company that specializes in the design and manufacture of semiconductor components. It provides a wide range of products including power and signal management, logic, discrete, and custom devices to help its customers solve their unique design challenges in automotive, communications, computing, consumer, industrial, medical, and military/aerospace applications. The company is known for its focus on energy-efficient innovations and solutions.
Application
The NCP1340B8D1R2G is a high-performance, quasi-resonant flyback controller designed for use in various power supply applications. It is commonly used in areas such as:
1. AC-DC Adapters: For consumer electronics, providing efficient power conversion.
2. LED Drivers: Ensuring precise and efficient power management for LED lighting solutions.
3. Battery Chargers: Ideal for applications requiring controlled charging and power management.
4. Industrial Power Supplies: Used in systems demanding high reliability and efficiency.
5. Appliances: Integrated into household and commercial appliances for efficient power handling.
Its design supports enhanced efficiency and reduced electromagnetic interference, suitable for cost-sensitive applications.
1. AC-DC Adapters: For consumer electronics, providing efficient power conversion.
2. LED Drivers: Ensuring precise and efficient power management for LED lighting solutions.
3. Battery Chargers: Ideal for applications requiring controlled charging and power management.
4. Industrial Power Supplies: Used in systems demanding high reliability and efficiency.
5. Appliances: Integrated into household and commercial appliances for efficient power handling.
Its design supports enhanced efficiency and reduced electromagnetic interference, suitable for cost-sensitive applications.
Package
The NCP1340B8D1R2G is typically available in an SOIC-8 (Small Outline Integrated Circuit, 8-pin) package. This package type is commonly used for surface-mount applications, offering a compact footprint for efficient space utilization on printed circuit boards.