LTC4447IDD#PBF

PMIC - Gate Drivers

The LTC4447IDD#PBF is a low-side gate driver with a low operating current and low quiescent current. It is designed for use in a variety of industrial applications such as induction, variable frequency drives and motor controllers. Its small size and low power consumption make it ideal for portable applications.

The LTC4447IDD#PBF features a high-speed, low-impedance gate driver output that can drive MOSFETs or IGBTs operating up to 50V DC. It also has dual control inputs and a built-in bootstrap diode to protect the gate driver output during transients. The LTC4447IDD#PBF includes an integrated fault protection circuitry, which monitors the output voltage and shuts down the driver in the event of a short circuit or overvoltage situation.

Its high speed, low-impedance output and integrated fault-protection circuitry make the LTC4447IDD#PBF ideal for automotive and high-power industrial applications. Its built-in bootstrap diode allows for higher-power applications without an external bootstrap power supply. This makes the LTC4447IDD#PBF especially suitable for portable applications as it requires no additional power source.

The LTC4447IDD#PBF operates using a linear topology, allowing for fast transient response and low harmonic distortion. It features a low power supply current and low quiescent current, making it energy efficient and suitable for portable applications. It also offers superior switching performance, featuring a toe-to-toe switching speed of 10ns. The LTC4447IDD#PBF also offers protection against back-to-back switching, over-voltage, under-voltage, and over-temperature conditions.

The LTC4447IDD#PBF is designed with a short-circuit detection (SCD) circuit that monitors both the V-out and I-out of the gate driver. It is also capable of monitoring the V-OUT voltage level when the drain voltage rises above V-IN. The SCD circuit will immediately turn off the LTC4447IDD#PBF after sensing an overcurrent situation to protect the gate driver from damage. The SCD circuit also has hysteresis for improved noise immunity. The LTC4447IDD#PBF is protected from over-temperature conditions by a thermal shutdown circuit that deactivates the LTC4447IDD#PBF when it is operating above the self-defined threshold.

The LTC4447IDD#PBF is designed for a wide variety of industrial applications. It is ideal for driving IGBTs and MOSFETs for switched-mode power supplies, solar inverters, motor controllers and induction motors. Its robust design and integrated fault protection make it an ideal choice for use in harsh environments and industrial applications.

In conclusion, the LTC4447IDD#PBF is an ideal gate driver to use in a variety of industrial applications due to its low quiescent current, low operating current, fast switching speeds and integrated fault protection.