LM5033 Datasheet | National Semiconductor

LM5033 100V Push-Pull Voltage Mode PWM Controller April 2004 LM5033 100V Push-Pull Voltage Mode PWM Controller General Description The LM5033 High Voltage PWM controller contains all the Features needed to implement Push-Pull, Half-Bridge, and Full-Bridge topologies. Applications include closed loop voltage mode converters with a highly regulated output voltage, or an open loop "DC transformer" such as an Intermediate Bus Converter (IBC) with an efficiency > 95%. The small 10 pin LLP-10 package with exposed pad provides for efficient thermal management. Two alternating gate driver outputs with a guaranteed deadtime are provided. The LM5033 includes a start-up regulator that operates over a wide input range of 15V to 100V. Additional Features include: precision voltage reference output, current limit detection, remote shutdown, softstart, sync capability and thermal shutdown. This high speed IC has total propagation delays less than 100 ns and a 1MHz capable oscillator. Features n n n n n n n n n Internal high voltage (100V) start-up regulator Single resistor oscillator setting Synchronizable Precision reference output Adjustable soft-start Over-current protection Direct optocoupler interface 1.5A peak gate drivers Thermal Shutdown Applications n n n n Intermediate DC/DC Bus Converter Telemunication Power Converters Industrial Power Converters +42V Automotive Systems Package n LLP-10 Connection Diagram 10 -Lead Plastic, Dual, LLP Ordering Information Order Number LM5033SD LM5033SDX Package Type LLP-10 (4 x 4 mm) LLP-10 (4 x 4 mm) NSC Package Drawing SDC10A SDC10A Supplied As 1000 Units on Tape and Reel 4500 Units on Tape and Reel © 2004 National Semiconductor Corporation DS200354 .national. Pin Description PIN 1 2 3 NAME Vin REF P Input Voltage 2.5V precision reference output PWM Input DESCRIPTION APPLICATION INFORMATION Input to the start-up regulator. Input range is 15V to 90V, with transient capability to 100V . Sink...