VN920DB5TR-E

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VN920DB5TR-E, developed by Everlight Electronics, is an integrated power management module (PMIC) that supports efficient power and thermal operation in applications such as industrial, automotive, communications and computing systems. The module offer a high degree of integration and high performance, minimizing system cost and complexity.

The VN920DB5TR-E is part of the PMIC family of Power Distribution Switches, Load Drivers, and is suitable for multiple voltage applications. It has two output pin sets, each with up to twelve output voltage ranges and two input pin sets at 5 / 1.8V. It also includes an Emergency Shutdown pin and a Current Detection Interrupt pin for automatic system shutdown independent of the microcontroller.

The module features a power management unit (PMU), which is responsible for all instructions generated from the main processor and the sub-processor, and enables seamless power sequencing, voltage and current regulation, temperature control, and communication. The PMU also provides thermal regulation, allowing the system to adjust power consumption to maintain optimal temperature control.

The VN920DB5TR-E provides an on-board power source selection feature, which allows the user to select either a single or multiple power sources for different applications. It also includes a programmable watchdog timer and an external input/output (I/O) interface for communication with external devices and sensors.

The module further includes an active load management system (ALMS) and load balancing system (LBS). The ALMS prevents current abnormal conditions that can cause system damage or instability, while the LBS ensures stable current distribution in the system, thereby reducing power consumption.

The VN920DB5TR-E also offers a watchdog timer (WDT) to monitor system performance and detect errors in operation. It also supports communication protocols including serial peripheral interface (SPI), I2C and communication bridge device interface (CBI).

In terms of working principle, the VN920DB5TR-E operates by taking power from various sources and distributing it to various sub-systems, such as memory, processor, display, and other peripherals. The PMU is responsible for monitoring and controlling the power supply, as well as for informing the main processor and sub-processor of the system’s power requirements. The module also provides active power management and thermal regulation, ensuring the power supply is used in an optimal manner.

The VN920DB5TR-E is an ideal solution for applications with complex power requirements, such as automotive and industrial automation. It is capable of managing multiple independent power sources and provides a high degree of flexibility in power distribution. The integrated PMU ensures efficient power and thermal management, reducing system cost and complexity.

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