LM5109BSD - Texas Instruments

Manufacturer Part Number

LM5109BSD

Manufacturer

Texas Instruments

Introduction

The LM5109BSD is a high voltage gate driver designed for driving N-Channel MOSFETs in a half-bridge configuration.

Product Features and Performance

High voltage operation capability

Dual independent drivers

Fast rise and fall times (15ns typical)

Robust 1A peak output source/sink current

Integrated bootstrap diode

Product Advantages

Capable of driving high side N-Channel MOSFET at voltage up to 108V

Efficient power management for half-bridge configurations

Suitable for high frequency switching applications

Key Technical Parameters

Driven Configuration: Half-Bridge

Channel Type: Independent

Number of Drivers: 2

Gate Type: N-Channel MOSFET

Voltage - Supply: 8V ~ 14V

Logic Voltage - VIL, VIH: 0.8V, 2.2V

Current - Peak Output (Source, Sink): 1A, 1A

Input Type: Non-Inverting

High Side Voltage - Max (Bootstrap): 108V

Rise / Fall Time (Typ): 15ns

Operating Temperature: -40°C ~ 125°C (TJ)

Quality and Safety Features

Built to withstand high voltage and temperature ranges

Surface mount design meets industry standards for quality and reliability

Compatibility

The gate driver is compatible with surface mount technology and specifically designed for N-Channel MOSFETs.

Application Areas

Switch mode power supplies

Motor controllers

Power inverters

High frequency switching power circuits

Product Lifecycle

The product status is obsolete, suggesting limited availability and the potential need for customers to look for replacements or upgrades.

Several Key Reasons to Choose This Product

Optimized for high side N-Channel MOSFET control with integrated bootstrap diode

Reliable power management for demanding applications due to robust peak output current and high voltage rating

Fast switching performance with 15ns rise/fall time catering to efficiency requirements

Adaptability to harsh environments with a wide operating temperature range

Suitable for compact designs with its 8-WDFN Exposed Pad package