The NCP1249CD65R2G is an integrated circuit (IC) component developed by ON Semiconductor. It is a controller for switching power supplies, designed for applications that require high efficiency with minimal external components. This IC provides a variety of features that contribute to the efficient and reliable operation of power supply systems.
Key features of the NCP1249CD65R2G include:
1. Green Mode Operation: The IC employs Green Mode control, which significantly reduces power consumption in standby mode. This feature is particularly helpful for meeting strict energy efficiency requirements.
2. Advanced Protection Mechanisms: The NCP1249CD65R2G incorporates various protection functions, such as thermal shutdown, short-circuit protection (SCP), and overvoltage protection (OVP). These protections enhance the system's reliability and safeguard the components from damage.
3. Frequency Jittering: To minimize electromagnetic interference (EMI) and improve system performance, the IC utilizes frequency jittering. This feature helps spread the noise spectrum, reducing the likelihood of interference with other nearby electronic devices.
4. Soft Start Capability: The NCP1249CD65R2G offers a soft start function that prevents excessive input current during startup. Soft start gradually increases the power supply output, minimizing stress on the system and ensuring a controlled and reliable power-up sequence.
5. Adjustable Output Voltage: With a feedback pin, the IC allows for adjustable output voltage
