LM5035 Datasheet | National Semiconductor

Description The LM5035 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 floating high-side gate driver 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 internal high voltage startup regulator is included, along with programmable line undervoltage lockout (UVLO) and overvoltage protection (OVP). The oscillator is programmed with a single resistor to frequencies up to 2MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-bycycle current limit and adjustable hiccup mode overload protection. Features n 105V / 2A Half-Bridge Gate Drivers n Synchronous Rectifier Control Outputs with Programmable Delays n High Voltage (105V) Start-up Regulator n Voltage mode Control with Line Feed-Forward and Volt - Second Limiting n Resistor Programmed, 2MHz Capable Oscillator n Patent Pending Oscillator Synchronization n Programmable Line Under-Voltage Lockout n Line Over-Voltage Protection n Internal Thermal Shutdown Protection n Adjustable Soft-Start n Versatile Dual Mode Over-Current Protection with Hiccup Delay Timer n Cycle-by-Cycle Over-Current Protection n Direct Opto-coupler Interface n 5V Reference Output .. Simplified Application Diagram Packages n TSSOP-20EP (Thermally enhanced) n LLP-24 (4mm x 5mm) © 2006 National Semiconductor Corporation DS201775 .national. Data Sheet 4 U . . .. 4U. .. Connection Diagrams Top View 20-Lead TSSOP EP Top View .. LLP-24 Package .national. Data Sheet 4 U . . .. 4U. .. Ordering Information Order Number LM5035MH LM5035MHX LM5035SQ LM5035SQX Package Type TSSOP-20EP TSSOP-20EP LLP-24 LLP-24 NSC Package Drawing MXA20A MXA20A SQA24B SQA24B Supplied As 73 Units per Rail 2500 Units on Tape and Reel...