NCP1256ASN65T1G

The NCP1256ASN65T1G is a fixed-frequency current-mode controller designed for switch-mode power supplies, particularly flyback converters. Manufactured by ON Semiconductor, it is known for its high efficiency and low standby power consumption, making it ideal for applications like adapters and chargers.
Key features include:
1. Frequency Modulation: It operates at a fixed frequency, which enhances noise performance and eases EMI filtering.
2. Current-Mode Control: This allows for simplified loop compensation and improved transient response.
3. Low Standby Power: The device enters a skip-cycle mode during light load conditions to reduce power consumption.
4. Protections: It includes features such as overvoltage protection, overcurrent protection, and thermal shutdown to ensure reliable operation.
5. Soft-Start: This feature limits inrush current during startup, protecting the system components.
The NCP1256 is suitable for a variety of AC-DC power supplies where efficiency, compact design, and cost-effectiveness are crucial.

The NCP1256ASN65T1G is a switch-mode power supply controller designed for use in AC-DC adapters, offline battery chargers, and other power supply applications. Key features include:
1. Frequency Jittering: Reduces EMI emissions, facilitating compliance with regulatory standards.
2. Skip Mode: Provides improved light-load efficiency by reducing switching losses.
3. Cycle-by-Cycle Current Limiting: Protects the power supply from overcurrent conditions, enhancing reliability.
4. Adjustable Overpower Protection (OPP): Allows customization of power limits for specific applications.
5. Internal Soft-Start: Minimizes inrush current during startup, enhancing system stability.
6. Low Standby Power: Contributes to energy efficiency, meeting stringent power consumption regulations.
7. Latch-Off Functionality: Protects against over-temperature and overvoltage conditions by shutting down the system.
8. Wide Operating Range: Supports a broad input voltage range, making it versatile for various applications.
These features make the NCP1256ASN65T1G suitable for energy-efficient power solutions in consumer electronics and industrial applications.

The NCP1256ASN65T1G is typically available in an SOIC-8 package type. This is a Surface-Mount Device (SMD) package, commonly used for integrated circuits, offering compactness and ease of assembly in electronic devices.

The NCP1256ASN65T1G is a fixed-frequency current-mode PWM controller designed for flyback converters. It typically comes in an 8-pin SOIC package. Here is a brief overview of its pin functions:
1. Pin 1 (VCC): Power supply pin for the controller.
2. Pin 2 (FB): Feedback input pin used to regulate the output voltage.
3. Pin 3 (CS): Current sense input pin for monitoring the current through the power switch.
4. Pin 4 (GND): Ground pin, the return path for the controller.
5. Pin 5 (DRV): Drive output pin used to control the gate of the power MOSFET.
6. Pin 6 (OCP): Overcurrent protection input pin, used for sensing an overcurrent condition.
7. Pin 7 (VCC): Another power supply pin; this might be a duplication in some documentation or serve a specific circuitry requirement.
8. Pin 8 (NC): No connect pin or may serve specific internal functions depending on the variant or application circuit.
The NCP1256 is utilized in applications like adapters, offline battery chargers, and other power supplies, providing features such as high efficiency and protection mechanisms.

The NCP1256ASN65T1G is manufactured by ON Semiconductor, which is now known as onsemi. Onsemi is a leading semiconductor supplier that focuses on intelligent power and sensing technologies. The company provides a broad range of semiconductor solutions, including power management, analog, sensor, logic, timing, and connectivity products. Onsemi serves various markets such as automotive, industrial, communications, computing, and consumer electronics. The company is known for its efforts in advancing energy-efficient innovations, aiming to create sustainable technologies that contribute to a better and more connected world.

The NCP1256ASN65T1G is a PWM current-mode controller commonly used in applications requiring efficient power conversion. Its primary areas of application include switched-mode power supplies (SMPS), AC-DC adapters, and any systems requiring high-efficiency and compact power supply solutions. It's suitable for power converters in consumer electronics, industrial equipment, and telecom power systems. Its design facilitates reduced standby power consumption, making it ideal for energy-efficient products.

The NCP1256ASN65T1G is a PWM controller for flyback converters. Equivalent products include:
1. UCC28740 by Texas Instruments: A flyback controller for high-efficiency designs.
2. LNK3204 by Power Integrations: Part of the LinkSwitch-TN family for low power, non-isolated applications.
3. TEA1733 by NXP Semiconductors: A green chip for power supply applications.
4. ICE3AR1065JZ by Infineon Technologies: A member of the CoolSET family, integrating a controller and a MOSFET.
Always verify specifications to ensure compatibility.