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 half-bridge PWM controller, featuring average current limit during an overload event to balance the center-point of the half-bridge capacitor divider. 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). 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.

• 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

Packages

• HTSSOP-20 (Thermally enhanced)
• WQFN-24 (4mm x 5mm)

All trademarks are the property of their respective owners.

• Topology
• Half-Bridge,
• Duty cycle (Max) (%)
• 50
• Supply voltage (Max) (V)
• 15
• UVLO thresholds on/off (V)
• Programmable/1.25V
• Features
• Current Limiting, HV Start-up, Multi-topology, Synchronization Pin
• Operating temperature range (C)
• -40 to 125
• Rating
• Catalog
• Frequency (Max) (kHz)
• 2000
• Gate drive (Typ) (A)
• 2

LM5039的完整型号有：LM5039MH/NOPB、LM5039MHX/NOPB、LM5039SQ/NOPB、LM5039SQX/NOPB，以下是这些产品的关键参数及官网采购报价：

LM5039MH/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：73个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5039MH/NOPB的批量USD价格：1.94（1000+）

LM5039MHX/NOPB，工作温度：-40 to 125，封装：HTSSOP (PWP)-20，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5039MHX/NOPB的批量USD价格：1.617（1000+）

LM5039SQ/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：1000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5039SQ/NOPB的批量USD价格：1.94（1000+）

LM5039SQX/NOPB，工作温度：-40 to 125，封装：WQFN (NHZ)-24，包装数量MPQ：4500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SN，TI官网LM5039SQX/NOPB的批量USD价格：1.617（1000+）

LM5039EVAL — 用于 LM5039 的评估板

The LM5039 evaluation board is designed to provide the design engineer with a fully functional power converter based on the half-bridge topology to evaluate the LM5039 controller. The LM5039 is a functional variant of the LM5035B controller, featuring an average current limit during an overload (...)

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