onsemi 7-Pin SOIC Current Mode Flyback PWM Controller 20V 107kHz NCP1271D100R2G

onsemi NCP1271D100R2G is a 7-Pin SOIC surface mount PWM controller featuring current mode control and flyback topology designed for power management in electronic components and industrial applications. It operates at a fixed frequency of 107 kHz and supports an output voltage up to 20V with an output current capability of 500mA, making it ideal for AC-DC off-line controllers and secondary side power supply synchronous rectification.

This PWM controller is optimized for efficiency, with a low start-up supply current of 4.1mA and a low running supply current of 2.3mA, which contributes to reduced power consumption in power management circuits. The controller supports a maximum duty cycle of 85%, which allows flexibility in switching power supply designs and maintains stable operation within thermal and electrical limits.

With operational temperatures ranging from -40°C to 150°C, the NCP1271D100R2G is well suited for demanding industrial environments and applications requiring robust, reliable control solutions. It is RoHS compliant, ensuring it meets environmental regulations for hazardous substances.

The device’s compact 7-pin SOIC package with dimensions 5mm in length, 4mm in width, and 1.5mm in height enables easy integration into printed circuit boards while minimizing space usage. As part of the NCP12XX series from onsemi, this PWM controller is specifically designed for power supply applications including flyback and forward converter topologies used in industrial power management, manufacturing systems, and electronic instrumentation.

Maximum switching frequency: 107 kHz. Start-up supply current: 4.1 mA. Supply current: 2.3 mA. Output voltage: 20 V. Output current: 500 mA. 7-pin Surface Mount SOIC package. Maximum duty cycle: 85% suitable for power supply efficiency.

Operating temperature: -40°C to 150°C. RoHS compliant for environmental safety. Compact dimensions: 5 x 4 x 1.5 mm.

This PWM controller is widely used in industrial power management circuits including HVAC controls, manufacturing equipment, and laboratory instruments where precise and efficient power regulation is critical. Explore additional related power management ICs and PWM Controllers on EnvMart for comprehensive solutions to your power control needs.