Transcription of LTC3721-1 - Push-Pull PWM Controller
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LTC3721-1 - Push-Pull PWM Controller
LTC3721-11sn37211 37211fsAPPLICATIO SUFEATURESTYPICAL APPLICATIOUDESCRIPTIOUThe LTC 3721-1 Push-Pull PWM Controller provides all ofthe control and protection functions necessary for com-pact and highly efficient, isolated power converters. Highintegration minimizes external component count, whilepreserving design robust Push-Pull output stages switch at half theoscillator frequency. Dead-time is independently pro-grammed with an external resistor. A UVLO program inputprovides precise system turn-on and turn off voltages. TheLTC3721-1 features peak current mode control with pro-grammable slope compensation and leading LTC3721-1 features extremely low operating andstart-up currents and reliable short-circuit andovertemperature protection. The LTC3721-1 is offered in16-pin SSOP and (4mm 4mm) QFN packages. Telecommunications, Infrastructure Power Systems Distributed Power Architectures Server Power Supplies High Density Power Modules, LTC and LT are registered trademarks of Linear Technology Corporation.
Pulse Width Modulator ROS Ramp Offset Voltage Measured on COMP, CS = 0V 0.65 V IRMP Ramp Discharge Current CS = 1V, COMP = 0V, CT = 4V 50 mA ISLP Slope Compensation Current Measured on CS, CT = 1V 30 µA CT = 2.25V 68 µA DCMAX Maximum Duty Cycle COMP = 4.5V 47 48.2 50 % DCMIN Minimum Duty Cycle COMP = 0V 0% DTADJ Dead-Time …
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