LM5030 Datasheet | National Semiconductor

Description The LM5030 High Voltage PWM controller contains all of the features needed to implement Push-Pull and Bridge topologies, using current-mode control in a small 10 pin package. This device provides two alternating gate driver outputs. The LM5030 includes a high-voltage start-up regulator that operates over a wide input range of 14V to 100V. Additional features include: error amplifier, precision reference, dual mode current limit, slope pensation, softstart, sync capability and thermal shutdown. This high speed IC has total propagation delays less than 100ns and a 1MHz capable single resistor adjustable oscillator. Package: MSOP-10 (Contact factory for thermally enhanced LLP availability). Features n n n n n n n n n n n Internal High Voltage Start-up Regulator Single Resistor Oscillator Setting Synchronizable Error Amplifier Precision Reference Adjustable Softstart Dual Mode Over-Current Protection Slope pensation Direct Optocoupler Interface 1.5A Peak Gate Drivers Thermal Shutdown Applications n Telemunication Power Converters n Industrial Power Converters n +42V Automotive Systems Connection Diagram Top View 10-Lead MSOP Ordering Information Order Number LM5030MM LM5030MMX Package Marking S73B S73B NSC Package Drawing MUB10A MUB10A Supplies As 1000 Units on Tape and Reel 3500 Units on Tape and Reel © 2003 National Semiconductor Corporation DS200581 .national. Block Diagram FIGURE 1. .national. Pin Description Pin Name VIN VFB P Vcc Pin Number 1 2 3 4 Description Source Input Voltage Application Information Input to start-up regulator. Input range 14 to 100 Volts. Inverting input to the error amplifier The non-inverting input is internally connected to a 1.25 Volt reference. Output to the error amplifier Output from the internal high voltage series pass regulator. The regulation setpoint is 7.7 Volts. Output of the PWM controller Output of the PWM controller Return Current sense input There is an...