Overview
The NCP1077BBP100G is a highly integrated, fixed-frequency current-mode controller from ON Semiconductor. This component is part of the NCP107x series, designed for robust and highly efficient power supplies. It combines a 700 V MOSFET with advanced control features, making it suitable for a wide range of AC/DC converter applications. The device is available in a PDIP-7 package and offers various protection mechanisms and efficiency-enhancing features.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| MOSFET Voltage Rating | 700 | V |
| RDS(ON) | 4.8 | Ω |
| Peak Current (IPK) | 800 | mA |
| Operating Frequency | 65, 100, 130 kHz | kHz |
| VCC Start-Up Voltage | 8.0 - 8.9 | V |
| VCC Minimum Voltage | 6.5 - 7.3 | V |
| VCC Off Voltage (UVLO) | 6.1 - 6.9 | V |
| Soft-Start Duration | 10 | ms |
| Propagation Delay | 100 | ns |
Key Features
- Built-in 700 V MOSFET: With a low RDS(ON) of 4.8 Ω, ensuring high efficiency and reliability.
- Current-Mode Fixed Frequency Operation: Available frequencies include 65 kHz, 100 kHz, and 130 kHz.
- Large Creepage Distance: Between high-voltage pins, enhancing safety and reliability.
- Advanced Protection Mechanisms: Including overvoltage protection with auto-recovery, short-circuit protection, and brown-out detection.
- Frequency Foldback and Skip Mode: For improved efficiency at light loads and reduced standby power consumption.
- Dynamic Self-Supply (DSS): Eliminates the need for an auxiliary winding, reducing component count and improving efficiency.
- Soft-Start and Frequency Jittering: Reduces electromagnetic interference (EMI) and ensures smooth startup.
Applications
- AC/DC Power Supplies: Suitable for a variety of power supply applications, including adapters, open-frame power supplies, and more.
- Consumer Electronics: Ideal for use in consumer electronics such as chargers, set-top boxes, and other household appliances.
- Industrial Power Supplies: Can be used in industrial settings where high reliability and efficiency are crucial.
- Medical Devices: Meets the stringent requirements of medical devices with its robust protection features and high efficiency.
Q & A
- What is the voltage rating of the MOSFET in the NCP1077BBP100G?
The MOSFET in the NCP1077BBP100G has a voltage rating of 700 V.
- What are the available operating frequencies for the NCP1077BBP100G?
The NCP1077BBP100G operates at frequencies of 65 kHz, 100 kHz, and 130 kHz.
- What is the peak current capability of the NCP1077BBP100G?
The peak current capability of the NCP1077BBP100G is 800 mA.
- Does the NCP1077BBP100G have built-in overvoltage protection?
- How does the NCP1077BBP100G manage standby power consumption?
The device enters frequency foldback and skip mode to reduce standby power consumption, and the connection of an auxiliary winding can further reduce input power consumption below 50 mW at high line.
- What is the purpose of the dynamic self-supply (DSS) feature in the NCP1077BBP100G?
The DSS feature eliminates the need for an auxiliary winding, improving efficiency and reducing component count.
- Does the NCP1077BBP100G support soft-start and frequency jittering?
- What is the typical soft-start duration for the NCP1077BBP100G?
The soft-start duration is typically 10 ms.
- What are some common applications for the NCP1077BBP100G?
The NCP1077BBP100G is suitable for AC/DC power supplies, consumer electronics, industrial power supplies, and medical devices.
- What package type is the NCP1077BBP100G available in?
The NCP1077BBP100G is available in a PDIP-7 package.
