LM5037数据手册开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS规格书PDF

描述 Description

The LM5037 PWM controller contains all the features necessary to implementbalanced double-ended power converter topologies, such as push-pull, half-bridgeand full-bridge. These double-ended topologies allow for higher efficiencies andgreater power densities compared to common single-ended topologies such as theflyback and forward. The device can be configured for either voltage mode orcurrent mode control with minimum external components. Two alternating gatedrive outputs are provided, each capable of 1.2-A peak output current. Thedevice can be configured to operate directly from the input voltage rail over awide range of 13 V to 100 V. Additional features include programmable maximum duty cycle limit, lineundervoltage lockout, cycle-by-cycle current limit and a hiccup mode faultprotection with adjustable timeout delay, soft-start and a 2 MHz capableoscillator with synchronization capability, precision reference and thermalshutdown.For all available packages, see the orderable addendum at the end

特性 Features

·High-Voltage (100-V) Start-up Regulator ·Alternating Outputs for Double-Ended Topologies ·Current-mode or Feed-forward Voltage-mode Control ·Programmable Maximum Duty Cycle Limit ·2% Feedback Reference Accuracy ·High Gain-bandwidth Error Amplifier ·Programmable Line Undervoltage Lockout (UVLO) with AdjustableHysteresis ·Versatile Dual Mode Overcurrent Protection with Hiccup Delay Timer ·Programmable Soft-start Time ·Precision 5-V Reference Output ·Current Sense Leading Edge Blanking ·Resistor Programmed 2-MHz Capable Oscillator ·Oscillator Synchronization Capability with Low-Frequency LockoutProtection