NCP1076DIPGEVB: 20W High Voltage Switching Regulator for Offline SMPS Evaluation Board

The NCP1076DIPGEVB is designed for quick evaluation of the NCP1076. The NCP1076/NCP1077 products integrate a fixed frequency current mode controller and a 700 V MOSFET. Available in PDIP-7 or SOT-223 packages, the NCP1076/7 features a high level of integration including soft-start, frequency jittering, short-circuit protection, cycle skipping, maximum peak current set point, slope compensation, and dynamic self-powering (no auxiliary winding required). Unlike other monolithic solutions, the NCP1076/7 is intrinsically quiet: during rated load operation, the part switches at one of the available frequencies (65, 100, or 130 kHz). When output power demand decreases, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When power demand decreases further, it enters skip mode, reducing standby power consumption to no-load conditions. Protection features include: timer to detect overload or short-circuit events, overvoltage protection with automatic recovery, and AC input line voltage sensing. To improve standby performance, the connection of the auxiliary winding stops the DSS operation and helps reduce the input power consumption to less than 50 mW at the high voltage line. For more information, see the datasheet.

The NCP1076DIPGEVB is designed to quickly evaluate the NCP1076. The NCP1076 / NCP1077 products integrate a fixed frequency current mode controller with a 700 V MOSFET. Available in a PDIP-7 or SOT-223 package, the NCP1076/7 offer a high level of integration, including soft-start, frequency-jittering, short-circuit protection, skip-cycle, a maximum peak current set point, ramp compensation, and a Dynamic Self-Supply (eliminating the need for an auxiliary winding). Unlike other monolithic solutions, the NCP1076/7 is quiet by nature: during nominal load operation, the part switches at one of the available frequencies (65, 100 or 130 kHz). When the output power demand diminishes, the IC automatically enters frequency foldback mode and provides excellent efficiency at light loads. When the power demand further reduces, it enters into a skip mode to reduce the standby consumption down to a no load condition.Protection features include: a timer to detect an overload or a short-circuit event, Overvoltage Protection with auto-recovery and AC input line voltage detection.For improved standby performance, the connection of an auxiliary winding stops the DSS operation and helps to reduce input power consumption below 50 mW at high line.For more information please see the datasheet.