厂商:Freescale
类别:16位单片机
厂商:Linear
类别:开关稳压器
厂商:Panasonic
类别:高频设备
类别:压力传感器
类别:PhotoMOS(MOSFET输出光电耦合器)
厂商:
类别:积层式贴片电感
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特点Drives External Power MOSFETSupply Voltage Range: 4.5V to 20VFlyback Voltage Limited Only by External ComponentsSenses Output Voltage Directly from Primary Side Winding—No Optoisolator RequiredModerate Accuracy Regulation Without User TrimsRegulation Maintained Well into Discontinuous ModeSwitching Frequency from 50kHz to 250kHz with External CapacitorAvailable in 16-Pin GN and SO PackagesOptional Load CompensationOptional Undervoltage Lockout External I SENSE Resistor Shutdown Feature Reduces I Q to 50μA Typ 典型应用描述The LT?1737 is a monolithic switching regulator controller specifically designed for the isolated flyback topology. It drives the gate of an external MOSFET and is generally powered from a DC supply voltage. Output voltage feedback information may be supplied by a variety of methods including a third transformer winding, the primary winding or even direct DC feedback (see Applications Information). Its gate drive capability coupled with a suitable external MOSFET and other power path components can deliver load power up to tens of Watts.The LT1737 has a number of features not found on other isolated flyback controller ICs presently available. By utilizing current mode switching techniques, it provides excellent AC and DC line regulation. Its unique control circuitry can maintain regulation well into discontinuous mode in most applications. Optional load compensation circuitry allows for improved load regulation. An optional undervoltage lockout pin halts operation when the application input voltage is too low. An optional external capacitor implements a soft-start function.