LM5032

www.DataSheet4U.com LM5032 High Voltage Dual Interleaved Current Mode Controller March 2005 LM5032 High Voltage Dual Interleaved Current Mode Controller General Description 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 100V and compound (bipolar + CMOS) gate drivers that provide a robust 2.5A peak sink current. The adjustable maximum PWM duty cycle reduce stress on the primary side MOSFET switches. Additional features include programmable line under-voltage 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. Features n n n n n n n n n n n n n Two independent PWM current mode controllers Integrated high voltage startup regulator Compound 2.5A 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 under-voltage lockout Independently adjustable soft-start (each regulator) Direct ...