NCP1256BSN100T1G

NCP1256BSN100T1G Product Details

Product Overview

The NCP1256BSN100T1G is a highly integrated, current-mode Pulse-Width Modulation (PWM) controller from ON Semiconductor, designed for high-performance offline power supply applications. This IC combines various features such as frequency foldback, soft-start, and high-voltage startup to optimize efficiency across different load conditions. It is particularly suitable for low standby power designs, offering excellent efficiency over a wide range of output loads. The NCP1256BSN100T1G operates with fixed frequency and supports quasi-resonant flyback topologies, ensuring reduced electromagnetic interference (EMI).

Key Features and Advantages

• Current-Mode Control: Ensures fast and precise response to line and load variations, improving overall system stability.

• Frequency Foldback: Reduces switching frequency at light load conditions, optimizing power efficiency.

• Soft-Start Function: Limits inrush current during startup, increasing power supply reliability.

• Low Standby Power: Minimizes power consumption in standby mode, making it ideal for energy-conscious applications.

• High-Voltage Startup Circuit: Eliminates the need for external components, reducing overall system cost and complexity.

• Quasi-Resonant Operation: Lowers switching losses and improves EMI performance in flyback topologies.

Product Specifications

Applications

The NCP1256BSN100T1G is suitable for a wide range of power supply applications, providing optimal efficiency and reliability. Some examples include:

• Power Adapters: Used in compact AC-DC adapters for smartphones, laptops, and tablets, reducing standby power consumption.

• LED Drivers: Supports efficient power conversion for LED lighting systems, optimizing energy usage.

• Consumer Electronics: Ideal for use in home appliances such as TVs, audio systems, and gaming consoles, where low standby power is critical.

• Industrial Power Supplies: Employed in high-efficiency industrial equipment requiring stable and reliable power delivery.

Usage Scenarios

The NCP1256BSN100T1G excels in applications where energy efficiency and system stability are paramount. Specific usage scenarios include:

• AC-DC Power Supplies: Helps meet stringent energy efficiency standards by reducing power consumption in standby and light load conditions.

• LED Lighting Systems: Ensures efficient energy conversion and stable power delivery for high-brightness LED lighting systems in both commercial and residential applications.

• Industrial Equipment: Enhances power management in industrial control systems by providing reliable performance under variable load conditions.

• Consumer Electronics: Delivers precise power management for consumer devices, reducing energy waste in idle or standby modes.

Shipping Methods

Common international shipping methods for electronic components like the NCP1256BSN100T1G include:

• DHL Express: Known for its speed and reliability, with delivery in 1-3 business days. Ideal for urgent shipments and time-sensitive projects.

• FedEx International Priority: Offers similar service levels as DHL, with fast delivery and comprehensive tracking. It’s often preferred for its strong global network and customer service.

• UPS Worldwide Express: Provides fast shipping services with strong coverage in Europe and North America. UPS is often selected for critical shipments requiring precise tracking and shorter delivery windows.

• TNT Express: Offers more affordable rates for less time-sensitive shipments, especially within Europe and the Asia-Pacific region, but typically has longer delivery times compared to DHL or FedEx.

Frequently Asked Questions (FAQ)

Q1: What is the typical standby power consumption of the NCP1256BSN100T1G?
A1: The NCP1256BSN100T1G consumes less than 30 mW in standby mode, making it ideal for applications requiring low standby power.

Q2: Can this IC be used in quasi-resonant topologies?
A2: Yes, the NCP1256BSN100T1G supports quasi-resonant flyback topologies, improving efficiency and reducing EMI.

Q3: What is the maximum switching frequency of this device?
A3: The NCP1256BSN100T1G operates with a fixed switching frequency of 100 kHz.

Q4: What package type is available for this component?
A4: The NCP1256BSN100T1G comes in an 8-pin SOIC package, suitable for surface mounting.