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LM5046
SNVS703H – FEBRUARY 2011 – REVISED NOVEMBER 2014
LM5046 Phase-Shifted Full-Bridge PWM Controller With Integrated MOSFET Drivers
1 Features
•1 Highest Integration Controller for Small Form Factor, High-Density Power Converters
• High-Voltage Start-Up Regulator • Intelligent Sync Rectifier Start-Up Allows Linear
Turn-on into Prebiased Loads • Synchronous Rectifiers Disabled in UVLO Mode
and Hiccup Mode • Two Independent, Programmable Dead-Time
Adjustments to Enable Zero-Volt Switching • Four High-Current 2-A Bridge Gate Drivers • Wide-Bandwidth Opto-Coupler Interface • Configurable for Either Current Mode or Voltage
Mode Control • Dual-Mode Overcurrent Protection • Resistor Programmed 2-MHz Osci