The LM5020MM-1 is a high voltage Pulse Width Modulation (PWM) Controller 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
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