LM5032高电压双路交错电流模式控制器

　　描述

　　The LM5032 dual current mode PWM controller contains all the features needed to control either two independent forward dc/dc converters or a single high current converter comprised of two interleaved power stages. The two controller channels operate 180° out of phase thereby reducing input ripple current. The LM5032 includes a startup regulator that operates over a wide input range up to 100 V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5-A peak sink current. The adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line undervoltage lockout, cycle-by-cycle current limit, hiccup mode fault operation with adjustable response time, PWM slope compensation, soft-start, and a 2-MHz capable oscillator with synchronization capability.

　　For all available packages, see the orderable addendum at the end of the datasheet.

　　特性

　　Two Independent PWM Current Mode Controllers

　　Integrated High-Voltage Startup Regulator

　　Compound 2.5-A Main Output Gate Drivers

　　Single Resistor Oscillator Setting to 2 MHz

　　Synchronizable Oscillator

　　Programmable Maximum Duty Cycle

　　Maximum Duty Cycle Fold-Back at High-Line Voltage

　　Adjustable Timer for Hiccup Mode Current Limiting

　　Integrated Slope Compensation

　　Adjustable Line Undervoltage Lockout

　　Independently Adjustable Soft-Start (Each Regulator)

　　Direct Interface with Opto-Coupler Transistor

　　Thermal Shutdown

　　TSSOP 16-Pin Package

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