BD49L55G-TL Integrated Circuits (ICs)

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PMIC – Supervisors is a specialized integrated circuit designed to monitor and control various operating parameters of embedded systems. They provide important functions such as fault protection and system voltage monitoring.

The BD49L55G-TL is a low-power PMIC – Supervisors designed with advanced functions to provide additional protection for embedded systems from power supply damage. The BD49L55G-TL is an ultra-low-power system supervisor offering a wide operating range with adjustable threshold settings. It is a low-power device that can operate with very low current consumption, allowing for accurate system voltage monitoring. The BD49L55G-TL is optimized for embedded system applications that demand ultra-low-power consumption.

Application Field

The BD49L55G-TL is well suited for two-pin low-voltage reset (LVR) applications. It provides a versatile reset function with integrated power-on reset (POR) and excessive voltage reset (EVR) timing signals. The adjustable reset threshold voltage makes it ideal for a wide variety of applications. It has features such as low-voltage detect (LVD) and low-voltage warning (LVW) for power-fail applications. The BD49L55G-TL is an ideal supervisor for embedded systems used in portable, battery-powered applications.

Working Principle

The working principle of the BD49L55G-TL is to monitor and control operating parameters of the embedded system. The primary function of the device is to protect the system from power supply damage by monitoring the VCC pins of the system. It uses an adjustable reset threshold to monitor VCC and will reset the system upon detection of a voltage droop or excessive overvoltage levels.

The device features a wide input voltage range and adjustable reset thresholds along with ultra-low power consumption. The reset timing signals can be programmed and adjusted to meet the specific needs of the application. It provides flexibility in configuring the reset timing and can be used for applications which require either a fixed or an adjustable reset timeout. Additionally, the LVW output can be used to trigger an external event or enable an additional system feature.

The device also features an enable input and active-high reset output for further protection. The enable pin can be used to interact with the system, preventing it from issuing a reset if the system is not ready to be reset. The active-high reset output can be directly connected to the reset lines of compatible logic ICs for easy system integration.

The BD49L55G-TL is an extremely power-efficient device that grants robust, low-loss protection to the system. It provides excellent accuracy, reliability and protection to embedded systems that require low-voltage, low-power monitoring.

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