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LTC4449IDCB Analog Devices Inc.
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
View All Product from Analog Devices Inc.The LTC4449IDCB is a high frequency gate driver that is designed to drive two N-Channel MOSFETs in a synchronous DC/DC converter. The powerful rail-to-rail driver capability reduces switching losses in MOSFETs with high gate capacitance.
The LTC4449IDCB features a separate supply for the input logic to match the signal swing of the controller IC. If the input signal is not being driven, the LTC4449IDCB activates a shutdown mode that turns off both external MOSFETs. The input logic signal is internally level-shifted to the bootstrapped supply, which functions at up to 42V above ground.
The LTC4449IDCB contains undervoltage lockout circuits on both the driver and logic supplies that turn off the external MOSFETs when an undervoltage condition is present. An adaptive shoot-through protection feature is also built-in to prevent the power loss resulting from MOSFET cross-conduction current.
The LTC4449IDCB is available in the 2mm × 3mm DFN package.
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TYPE | DESCRIPTION | Select all |
---|---|---|
Voltage - Supply | 4V ~ 6.5V | |
Logic Voltage - VIL, VIH | 3V, 6.5V | |
Current - Peak Output (Source, Sink) | 3.2A, 4.5A | |
Input Type | Non-Inverting | |
Package | Tube | |
High Side Voltage - Max (Bootstrap) | 42 V | |
Product Status | Obsolete | |
Rise / Fall Time (Typ) | 8ns, 7ns | |
Programmable | Not Verified | |
Operating Temperature | -40°C ~ 125°C (TJ) | |
Driven Configuration | Half-Bridge | |
Mounting Type | Surface Mount | |
Channel Type | Synchronous | |
Package / Case | 8-WFDFN Exposed Pad | |
Number of Drivers | 2 | |
Supplier Device Package | 8-DFN (2x3) | |
Gate Type | N-Channel MOSFET |
Analog Devices Inc.
Analog Devices (NASDAQ: ADI) leads in crafting high-performance analog, mixed-signal, and digital signal processing integrated circuits. For decades, they've tackled signal processing challenges across global electronics. With over 100,000 clients, their products convert real-world phenomena into electrical signals. Merged with Maxim Integrated, they offer top-tier mixed-signal and power management technologies, solving complex problems from DC to 100 GHz and sensor to cloud.
View All Product from Analog Devices Inc.IC GATE DRVR HALF-BRIDGE 8DFN
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IC GATE DRVR HIGH-SIDE 8MSOP
ISO 1/2 BRIDGE DRV W/DEADTIME UV
IC GATE DRVR HALF-BRIDGE 16DIP
IC GATE DRVR LOW-SIDE 8SOIC
IC GATE DRVR LOW-SIDE 8MINISOIC
IC GATE DRVR HIGH-SIDE 20DIP
IC GATE DRVR HIGH-SIDE 10MSOP
FAST 150V PROTECTED HI SIDE NMOS