The LM5020MM-2/NOPB is a high voltage Pulse-Width-Modulation Controller (PWM) contains all of the features needed to implement single ended primary power converter topologies. Output voltage regulation is based on current-mode control, which eases the design of loop compensation while providing inherent line feed-forward. The LM5020 includes a high-voltage start-up regulator that operates over a wide input range up to 100V. The PWM controller is designed for high speed capability including an oscillator frequency range to 1MHz and total propagation delays less than 100ns. Additional features include an error amplifier, precision reference, line under-voltage lockout, cycle-by-cycle current limit, slope compensation, soft start, oscillator synchronization capability and thermal shutdown.
Internal start-up bias regulator
Error amplifier
Precision voltage reference
Programmable soft-start
1A Peak gate driver
Programmable line under voltage lockout (UVLO) with the adjustable hysteresis
Cycle-by-cycle over-current protection
Programmable oscillator frequency with synchronization capability
Current sense leading edge blanking
Thermal shutdown protection
Current protection slope compensation
Green product and no Sb/Br
Device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
