onsemi PMIC - PMIC - AC DC Converters, Offline Switchers - NCP1200P100 NCP1200P100

The NCP1200P100 is a PWM current-mode controller designed for low-power offline switch-mode power supplies. It operates at a fixed frequency of 100 kHz and is available in an 8-pin PDIP package. This controller allows for the creation of compact AC-DC converters with minimal external components, making it suitable for applications such as wall adapters and offline battery chargers. Key features include no need for an auxiliary winding, integrated output short-circuit protection, and extremely low no-load standby power consumption. The device supports current-mode control with skip-cycle capability, which enhances efficiency at light loads by automatically entering a low-power mode when output demand decreases. It also includes built-in temperature shutdown and frequency jittering to reduce electromagnetic interference (EMI). The NCP1200P100 is RoHS compliant and is designed to drive low gate-charge switching devices like MOSFETs or IGBTs, ensuring low operating power. It is particularly useful for applications requiring reliable performance with low acoustic noise generation.