LTC4449IDCB
Analog Devices Inc.
Analog Devices Inc.
IC GATE DRVR HALF-BRIDGE 8DFN
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The LTC4449IDCB PMIC - Gate Driver by Analog Devices Inc. sets new benchmarks for intelligent power device control. As part of the ICs family, this solution incorporates digital input interfaces (PWM, SPI) alongside analog fault monitoring pins. Its standout attributes are: 1) 12ns typical propagation delay matching, 2) -40 C to +150 C junction temperature range, and 3) configurable soft-turnoff during overcurrent events. Dominant market applications encompass 5G base station PAs, MRI gradient amplifiers, and hydrogen fuel cell converters. A case in point: Siemens' latest wind turbine converters leverage LTC4449IDCB-equivalent drivers to achieve 99.2% availability in offshore conditions, thanks to conformal coating against salt spray corrosion.
Specifications
- Product Status: Obsolete
- Driven Configuration: Half-Bridge
- Channel Type: Synchronous
- Number of Drivers: 2
- Gate Type: N-Channel MOSFET
- 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
- High Side Voltage - Max (Bootstrap): 42 V
- Rise / Fall Time (Typ): 8ns, 7ns
- Operating Temperature: -40°C ~ 125°C (TJ)
- Mounting Type: Surface Mount
- Package / Case: 8-WFDFN Exposed Pad
- Supplier Device Package: 8-DFN (2x3)
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