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LM5033 Datasheet PDF


Part Number LM5033
Manufacturer National Semiconductor
Title 100V Push-Pull Voltage Mode PWM Controller
Description The LM5033 High Voltage PWM controller contains all the features needed to implement Push-Pull, Half-Bridge, and Full-Bridge topologies. Applicati...
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 pack...

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Datasheet LM5033 PDF File








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LM5032 : 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 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 limit, hiccup mode fault operation.

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LM5035B : The LM5035B Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5035B is a functional variant of the LM5035A half-bridge PWM controller. The LM5035B provides higher maximum duty cycle and higher start-up regulator output current than the LM5035A or LM5035. Also, the Synchronous Rectifier drive outputs of the LM5035B are held low in shutdown modes. The LM5035, LM5035A, and LM5035B include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An in.

LM5035B : The LM5035B Half-Bridge Controller/Gate Driver contains all of the features necessary to implement half-bridge topology power converters using voltage mode control with line voltage feed-forward. The LM5035B is a functional variant of the LM5035A halfbridge PWM controller. The LM5035B provides higher maximum duty cycle and higher start-up regulator output current than the LM5035A or LM5035. Also, the Synchronous Rectifier drive outputs of the LM5035B are held low in shutdown modes. The LM5035, LM5035A, and LM5035B include a floating high-side gate driver, which is capable of operating with supply voltages up to 105V. Both the high-side and low-side gate drivers are capable of 2A peak. An int.

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LM5036 : The LM5036 PWM controller, with integrated auxiliary bias supply, offers high power density for industrial isolated power applications. It contains all the features necessary to implement half-bridge power converters, using voltage-mode control, with input voltage feedforward. This controller is intended to operate on the primary side of an isolated converter with DC input voltage up to 100 V. The controller includes features that improve power density and reliability while reducing system cost: • An integrated fly-buck converter as auxiliary bias supply. Provides bias power for both primary and secondary circuits, with a minimum of external components. • Fully regulated pre-bias start-up. .




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