NTE7126

NTE7125 & NTE7126 Integrated Circuit Switching Regulator Description: The NTE7125 and NTE7126 are integrated circuits in a 12–Lead SIP type package incorporating all the power switching, amplifier, error detection, and overcurrent protection circuits required in a self– extcitation type semi–regulated off–line switching regulator. As a result, these devices can be used in the design of switching power supplies with a minimal number of external components. Furthermore, the adoption of MOSFET power switching elements supports a higher oscillation frequency than possible with bi–polar transistors. This allows smaller pulse transformers and capacitors to be used, making it possible to construct miniature power supply systems. Features: D Power MOSFET Devices D Ideal for Semi–Regulated Control Switching Supplies D Error Detection Circuit On–Chip (40.5V ±0.5V Set Refernce Voltage) D Overcurrent Protection Circuit On–Chip D Higher Oscillation Frequency allows the use of Smaller Pulse Transformers D IMST Substrate acts as an Electromagnetic Shield, makinf Low–Noise Designs Possible Applications: D CRT/CTV Power Supplies D Office Automation Equipment Power Supplies Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Operating Substrate Temperature (Recommended value is +105°C), TCmax . . . . . . . . . . . . +115°C AC Input Voltage, VAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140Vrms OPerating Tem...