BD49L39G-TL Integrated Circuits (ICs)

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PMIC - Supervisors: BD49L39G-TL Application Field and Working Principle

The BD49L39G-TL is a system reset controller, which belongs to the power management integrated circuit, also known as PMIC, family of supervisors. This supervisor circuit\'s main purpose is to provide system reset control to all types of power supplies, whether they are ACDC or DCDC based.

The BD49L39G-TL supervisor is primarily used in consumer electronics products such as smart TVs, set-top boxes, and home theater receivers. It is also used in the automotive and industrial sectors. The BD49L39G-TL provides reliable and configurable system reset control function and is optimized for processing video signals.

Working Principle and Features

The working principle of the BD49L39G-TL is quite simple; when a power supply experiences an overvoltage, undervoltage, or an unexpected voltage change, it signals the reset controller and triggers a system reset. The BD49L39G-TL is capable of detecting voltage changes from 1.5V to 46V and responding quickly with a reset signal.

The BD49L39G-TL has a fixed reset time of 37.5 us. The reset signal is active-low and the threshold voltage can be configured to anywhere between 1.55V and 6.5V. The supervisor also has an active-low output signal which can be used to indicate a fault or power supply failure.

The BD49L39G-TL supervisor also has a Power-On-Reset circuit which can be used to detect low-power events such as BrownOut (low voltage) or lack of power. It has an integrated voltage reference and temperature compensation with a tight 0.5% voltage regulation accuracy over an operating temperature range of -40°C to +105°C.

Competition and Future Outlook

The BD49L39G-TL is currently competing with a few similar supervisors from other vendors such as the APX803 from TE Connectivity, the CAD3601 from cree, and the SX5220 from ST Microelectronics. The BD49L39G-TL is a great option for system reset control due to its low cost and compact size.

In the near future, power management integrated circuit companies will continue to innovate and develop more efficient and cost-effective supervisors for more applications. With the current level of advancement in technology, power consumption and heat dissipation are still a concern for many systems designers and PMIC suppliers.

It is expected that in the coming years, power management integrated circuit companies will continue to develop more efficient applications and products to reduce power consumption and increase performance. It is also expected that the cost of these power management integrated circuits will continue to go down, making them more affordable and accessible to a wider range of users.

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