LM5035 Texas instruments

LM5035

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LM5035

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Описание

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 feedforward. The floating high-side gate driver is capable of operating with supply voltages up to 105 V. Both the high-side and low-side gate drivers are capable of 2-A peak. An internal high voltage start-up 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 2 MHz. The oscillator can also be synchronized to an external clock. A current sense input and a programmable timer provide cycle-by-cycle current limit and adjustable hiccup mode overload protection.

105-V, 2-A Half-Bridge Gate Drivers
Synchronous Rectifier-Control Outputs With
Programmable Delays
High-Voltage (105-V) Start-up Regulator
Voltage Mode Control With Line Feedforward and
Volt-Second Limiting
Resistor Programmed, 2-MHz Capable Oscillator
Patent Pending Oscillator Synchronization
Programmable Line Undervoltage Lockout
Line Overvoltage Protection
Internal Thermal Shutdown Protection
Adjustable Soft-Start
Versatile Dual Mode Overcurrent Protection With
Hiccup Delay Timer
Cycle-by-Cycle Overcurrent Protection
Direct Optocoupler Interface
5-V Reference Output

Topology	Half bridge
Control mode	Feedforward
Duty cycle (max) (%)	50
Switching frequency (max) (kHz)	2000
Features	Current limiting, High-voltage startup, Multi-topology, Pre-bias startup, Synchronization pin
UVLO thresholds on/off (V)	Programmable/1.25V
Operating temperature range (°C)	-40 to 125
Rating	Catalog
Gate drive (typ) (A)	2
Vin (max) (V)	15