LTC4441 - N-Channel MOSFET Gate Driver

The LTC®4441/LTC4441-1 is an N-channel MOSFET gate driver that can supply up to 6A of peak output current. The chip is designed to operate with a supply voltage of up to 25V and has an adjustable linear regulator for the gate drive. The gate drive voltage can be programmed between 5V and 8V.

The LTC4441/LTC4441-1 features a logic threshold driver input. This input can be driven below ground or above the driver supply. A dual function control input is provided to disable the driver or to force the chip into shutdown mode with <12µA of supply current. Undervoltage lockout and overtemperature protection circuits will disable the driver output when activated. The LTC4441 also comes with an open-drain output that provides adjustable leading edge blanking to prevent ringing when sensing the source current of the power MOSFETs.

The LTC4441 is available in a thermally enhanced 10-lead MSOP package. The LTC4441-1 is the SO-8 version without the blanking function.

Protected by U.S. Patents including 6677210.

Features
  • 6A Peak Output Current
  • Wide VIN Supply Range: 5V to 25V
  • Adjustable Gate Drive Voltage: 5V to 8V
  • Logic Input can be Driven Below Ground
  • 30ns Propagation Delay
  • Supply Independent CMOS/TTL Input Thresholds
  • Undervoltage Lockout
  • Low Shutdown Current: <12µA
  • Overtemperature Protection
  • Adjustable Blanking Time for MOSFET’s Current Sense Signal (LTC4441)
  • Available in SO-8 and 10-Lead MSOP (Exposed Pad) Packages
Typical Application
LTC4441 Typical Application
LTC4441 Typical Application
Applications
  • Power Supplies
  • Motor/Relay Control
  • Line Drivers
  • Charge Pumps
Packaging
LTC4441 Package Drawing
LTC4441 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC4441EMSE#PBFMS-10EE$2.14$1.80
LTC4441EMSE#TRPBFMS-10EE$1.86
LTC4441ES8-1#PBFSO-8E$2.02$1.70
LTC4441ES8-1#TRPBFSO-8E$1.76
LTC4441IMSE#PBFMS-10EI$2.50$2.10
LTC4441IMSE#TRPBFMS-10EI$2.16
LTC4441IS8-1#PBFSO-8I$2.38$2.00
LTC4441IS8-1#TRPBFSO-8I$2.06
LTC4441MPMSEMS-10EMP$7.79$5.45
LTC4441MPMSE#PBFMS-10EMP$7.79$5.45
LTC4441MPMSE#TRMS-10EMP$5.51
LTC4441MPMSE#TRPBFMS-10EMP$5.51
Demo Boards
Part NumberDescriptionPrice
DC835ALTC4441EMSE Demo Board | 6A N-Channel MOSFET Driver$100.00
Datasheet
Reliability Data
Press Release
CAD Symbol
LTspice
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