LM5101ASDX-1/NOPB

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The LM5101ASDX-1/NOPB is an integrated gate driver solution specifically designed for power management application. It provides low-side, high-side and bootstrap dual field-effect transistor (FET) drive capabilities and is suitable for circuit protection, voltage monitoring, current control and switch mode power supply (SMPS) systems.

It is an integrated dual high-and low-side gate driver for two N-channel MOSFETs. This device is fitted with a enable and accurate current sense circuitry and is capable of regulating the output current of a single stage power conversion circuit. The built-in overvoltage protection limits the output voltage when switching off the load current.

The LM5101ASDX-1/NOPB has an integrated load line control and load modulation feature. This feature ensures tight load line regulation and smooth transition in the load current. It also reduces the output power ripple, enabling higher efficiency and lower power dissipation.

In terms of its electrical features, the LM5101ASDX-1/NOPB features a logic function block that includes an enable input and a reset output, which can be used to shut off both the high-side and low-side FETs. The device also includes a fault protection circuit, which detects overcurrent and overvoltage conditions and will shut off the device automatically in such instances.

The LM5101ASDX-1/NOPB is specifically designed for PMIC - Gate Drivers applications. The device’s low-side and high-side drive capabilities make it ideal for high-voltage power supplies such as those used in servers, routers, and industrial and telecommunication applications.

It is also suitable for a wide range of other applications including switch mode power supplies (SMPS), point-of-load (POL) converters, motor control, DC-DC converter, power amplifiers, lighting ballasts and power management systems. Additionally, the low operating current of the LM5101ASDX-1/NOPB makes it suitable for battery-powered applications.

The working principle of LM5101ASDX-1/NOPB is quite simple. When an enable signal is sent to the device, the low-side FET and the high-side FET will be activated at the same time and the output current will be controlled by an external resistor together with the built-in current sensing circuitry. The load line control feature built-in the device dynamically adjusts the voltage at the gate of the two FETs to maintain a tight output voltage regulation.

Also, the intelligent fault protection pin will send a reset signal to the logic block if either overvoltage or overcurrent conditions occur. The reset signal will be then sent to the logic block and the device will shut off until both conditions are cleared.

The high-performance LM5101ASDX-1/NOPB provides a wide range of features and performance, including efficient high and low side gate drive capability, intelligent fault protection, load line control and load modulation as well as an adjustable voltage rail stopper.

To sum up, the LM5101ASDX-1/NOPB is an integrated gate driver solution specifically designed for power management application, including PMIC - Gate Drivers. The device provides a wide range of features, such as low-side, high-side and bootstrap dual FET drive capabilities, current sensing circuitry, overvoltage protection, load line control and load modulation. Additionally, the device is fitted with an enable and reset logic function block and an adjustable voltage rail stopper to ensure efficient operation.

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