LM5032 - National Semiconductor

LM5032 High Voltage Dual Interleaved Current Mode Controller

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.

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 limi.