Power chip

The NCP1079A and NCP1079B products integrate a fixed frequency current mode controller with 700 V MOSFETs. It uses two different pin outputs of the very common PDIP™7 encapsulation, which provides a high degree of integration, including soft start, frequency dithering, short circuit protection, cycle skipping, maximum peak current set point, slope compensation and dynamic self-power supply ( No auxiliary winding required). Unlike other monolithic solutions, the NCP1079A and NCP1079B are noiseless: during normal load operation, the part switches at a usable frequency (65 or 100 kHz). When the demand for output power disappears, the IC will automatically enter frequency foldback mode, providing excellent energy efficiency at light loads. When power demand decreases further, it enters skip mode, reducing standby power consumption to no-load conditions. Protection features include: timers to detect overload or short circuit events, overvoltage protection with automatic recovery. Input line voltage detection prevents severe runaway under low input voltage conditions (undervoltage) as well as over high input lines (AC line overvoltage protection). This also enables the overpower protection to compensate for any internal delays at high input voltage conditions, optimizing the maximum output current capability. To improve standby performance, connecting an auxiliary winding stops DSS operation, helping to reduce input power consumption on the high line to less than 50 mW.

800mA lithium battery charging IC

The MC34152/MC33152 are dual non-inverting high-speed drivers designed for applications requiring low-current digital signals to drive large capacitive loads at high slew rates. These devices feature low input current making them compatible with CMOS/LSTTL logic, input hysteresis for fast output switching independent of input transition time, and two high current totem-pole outputs ideal for driving power MOSFETs. An undervoltage lockout with hysteresis is also included to prevent incorrect system operation at low supply voltages. Typical applications include switching power supplies, DC-DC converters, capacitive charge pump doublers/inverters, and motor controllers. This device features dual-row plug-in and surface mount encapsulation.

Wide input voltage: 2.7V~5.5V \n, Maximum load current: 1.5A (800mA\n for output voltage of 2.5V or 3.3V, fixed output voltage: 1.0V~3.3V (factory setting

AC-DC module, input range: 85~265VAC/120~370VDC, single output: 5V/1000mA