L9347LF-TR

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The L9346LF-TR is a power management integrated circuit (PMIC) with special features optimized for power distribution, load drivers and temperature sensing applications. It is highly integrated, low power and cost-effective, and its internal current-measuring and temperature-sensing features yield improved system performance through various power distributions and performance measurements.

The main features of the L9346LF-TR PMIC are as follows.

• Integrated temperature sensor and current measuring block.
• High frequency PWM for power distribution.
• Supports two PWM loads.
• Configurable soft-start and over-current protection.
• Configurable power-good output.
• Current or voltage monitoring of the power rails.

The L9346LF-TR PMIC is designed to provide intelligent power distribution and control solutions. This PMIC supports a wide variety of platforms as well as many different power distribution solutions. The on-chip temperature sensors, current-measuring blocks and fast PWM switching circuits, as well as configurable soft-start, provide users with a comprehensive solution for the power supply and distribution requirements of the system.

The working principle of the L9346LF-TR PMIC consists mainly of two parts: the measurement block and the PWM control block. The measurement block consists of a temperature sensor and a current-measuring resistor. The integrated temperature sensor measures the temperature of the environment and can be used for thermal control. The current-measuring resistor measures the current of the power rails, and when the current exceeds the defined limit, the device will generate an over-current protection signal.

The PWM control block produces a high frequency PWM signal based on the temperature or current measurement results. This PWM signal is used to regulate the power distribution and enable/disable the load. The PWM frequency and duty cycle are adjustable, which can be used to optimize the EMI performance of the system. The PWM control block also includes a configurable soft-start and over-current protection functional blocks, which allow users to quickly adapt to power supply and load conditions. The configurable power-good output can be used to indicate the status of the power supply, and the current or voltage monitoring of the power rails also ensure the stability of the system.

In summary, the L9346LF-TR PMIC is designed to provide a comprehensive solution for power supply and distribution requirements. It integrates temperature sensor, current-measuring block, and high frequency PWM for power distribution. Various adjustable functions, such as configurable soft-start, over-current protection and power-good output, and current/voltage monitoring, allow users to quickly adapt to different power supply and load conditions. This PMIC has a wide range of applications, such as industrial, automotive, and consumer electronics, and can be used to provide reliable and efficient power solutions.

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