NCP1566MNTXG

The ON Semiconductor NCP1566MNTXG is a highly integrated dual-mode active-clamp PWM controller designed for high-density, high-performance isolated DC-DC converters. It can be configured for voltage mode control with input voltage feed-forward or peak current mode control, also with input voltage feedforward. The controller integrates essential control and protection functions, including a 120-V high-voltage startup circuit, line undervoltage lockout, cycle-by-cycle current limiting, and programmable overtemperature protection.

Key features include adjustable adaptive overlap time for improved efficiency, programmable maximum duty ratio clamp, and programmable soft-start. The device operates within a Vcc range of 6.5 V to 20 V and supports frequencies from 100 kHz to 1 MHz. It offers main switch drive capability of -2 A / 3 A and active clamp switch drive capability of -2 A / 1 A.

The NCP1566MNTXG is housed in a 24-QFN (4x4) package with a surface mount type. Its operating temperature range is -40°C to 150°C (TJ). This controller is suitable for applications in telecom and datacom industries, including server power supplies and automotive applications.

This device supports voltage mode control and peak current mode control, line feedforward, and adaptive overlap time control for improved efficiency. It also includes features like overvoltage protection, overcurrent protection based on average current, and short circuit protection. The FLT/SD pin is used for fault reporting and shutdown input, and a dedicated synchronization pin eases operations when associating bricks together.