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LM5039

Texas Instruments
Part Number LM5039
Manufacturer Texas Instruments
Description Half-Bridge PWM Controller
Published Apr 14, 2020
Detailed Description LM5039 www.ti.com SNVS621D – FEBRUARY 2010 – REVISED MARCH 2013 LM5039 Half-Bridge PWM Controller with Average Curren...
Datasheet PDF File LM5039 PDF File

LM5039
LM5039

Overview
LM5039 www.
ti.
com SNVS621D – FEBRUARY 2010 – REVISED MARCH 2013 LM5039 Half-Bridge PWM Controller with Average Current Limit Check for Samples: LM5039 FEATURES 1 •2 105V / 2A Half-Bridge Gate Drivers • Synchronous Rectifier Control Outputs with Programmable Delays • High Voltage (105V) Start-up Regulator • Voltage-mode Control with Line Feed-Forward and Volt • Second Limiting • Programmable Average Current Limit Balances the Half-Bridge Capacitor Divider Voltage in an Overload Condition • Programmable Hiccup Mode Timer Reduces Power Dissipation During a Continuous Overload Event • Adjustable Peak Cycle-by-Cycle Over Current Protection • Resistor Programmed, 2MHz Capable Oscillator • Patented Oscillator Synchronization • Programmable Line Under-Voltage Lockout • Internal Thermal Shutdown Protection • Adjustable Soft-Start • Direct Opto-Coupler Interface • 5V Reference Output DESCRIPTION The LM5039 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 LM5039 is a functional variant of the LM5035B halfbridge PWM controller, featuring average current limit during an overload event to balance the center-point of the half-bridge capacitor divider.
The floating highside 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).
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 provides peak cycle-by-cycle and average current limit.
Other features include adjustable hiccup mode overload protection, soft-start, revision reference, and thermal shutdown.
PACKAGES • HTSSOP-20 (Thermally enhanced) • WQFN-24 (4mm x 5mm) 1 Please be aware tha...


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