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LTC4440A-5 Series

High Speed, High Voltage, High Side Gate Driver

Manufacturer: Analog Devices

Catalog

High Speed, High Voltage, High Side Gate Driver

Key Features

• Wide Operating VINRange: Up to 60V
• Rugged Architecture Tolerant of 80V VINTransients
• Powerful 1.85Ω Driver Pull-Down (with 6V Supply)
• Powerful 1.1A Peak Current Driver Pull-Up (with 6V Supply)
• 7ns Fall Time Driving 1000pF Load
• 10ns Rise Time Driving 1000pF Load
• Drives Standard Threshold MOSFETs
• TTL/CMOS Compatible Inputs with Hysteresis
• Input Thresholds are Independent of Supply
• Undervoltage Lockout
• Low Profile (1mm) SOT-23 (ThinSOT™) and Thermally Enhanced 8-Pin MSOP Packages

Description

AI
The LTC4440A-5 is a high frequency high side N-channel MOSFET gate driver that is designed to operate in applications with VINvoltages up to 80V. The LTC4440A-5 can also withstand and continue to function during 100V VINtransients. The powerful driver capability reduces switching losses in MOSFETs with high gate capacitances. The LTC4440A-5’s pull-up has a peak output current of 1.1A and its pull-down has an output impedance of 1.85Ω.The LTC4440A-5 features supply independent TTL/CMOS compatible input thresholds with 350mV of hysteresis. The input logic signal is internally level-shifted to the bootstrapped supply, which may function at up to 95V above ground.The LTC4440A-5 is optimized for driving (5V) logic level FETs and contains an undervoltage lockout circuit that disables the external MOSFET when activated.The LTC4440A-5 is available in the thermally enhanced 8-lead MSOP package.ParameterLTC4440A-5LTC4440-5LTC4440Max Operating TS80V60V80VAbssolute Max TS100V80V100VMOSFET Gate Drive4V to 15V4V to 15V8V to 15VVCCUV+3.23.26.3VCCUV–3.04V3.04V6.0VApplicationsAutomotive Power SystemsTelecommunications Power SystemsDistributed Power ArchitecturesServer Power SuppliesHigh Density Power ModulesGeneral Purpose Low or High Side Driver