BD49L49G-TL Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuit) is an integrated circuit designed to manage the power supply and control power levels for various electronic circuits. Its main purpose is to optimize performance, reduce power consumption and control power in the most efficient way possible. Over time, PMICs have evolved from simple voltage regulators to complex integrated chips that contain their own internal power management features. Among them, supervisors, such as BD49L49G-TL, have become an essential part for modern electronic products.

BD49L49G-TL is a family of high-reliability supervisors manufactured by Renesas. It features robust performance and stability across a wide range of operating conditions. It is a reliable supervisor solution that offers outstanding system performance, heightened system security, and enhanced system reliability. The package size of the product is only 0.55mm x 0.55mm and it offers –1.8V to 3.6V Vdd supply voltage range. The BD49L49G-TL also provides a short circuit current limit (IAS = 800mA) and a temperature range of -40℃~ 85℃ which makes it suitable for use in commercial and industrial applications.

In terms of application fields, the BD49L49G-TL is typically used for mobile applications such as smartphones, laptops and tablets. It is ideal for safeguarding embedded controllers against excessive current or voltage levels, providing noise / interference protection, and ensuring device security. It can also be used in automotive, health care and medical, home audio equipment, industrial control, and an assortment of other applications.

In terms of working principles, the BD49L49G-TL monitors and tracks up to 6 different power supplies. It includes two self-timed delay parameters (Td and Td2) which are set through performance testing. The first delay parameter Td ensures that the output will be in high state when Vdd reaches the preset voltage value. The second delay parameter Td2 sets the minimum interval time needed to reset the output. This allows for faster device start-up and reduces power consumption. Furthermore, the monitor/supervisor provides an adjustable low battery threshold (Vtr) and a battery detect output (BVDD) that allows for complete system monitoring of the battery voltage. When Vtr is exceeded, BVDD will be activated, thus alerting the system of low battery voltage conditions.

The BD49L49G-TL is also equipped with a number of other features to ensure system security and reliability. It includes an integrated timer which measures the time needed to reset the outputs by counting the oscillator cycles. It also has a detection output (DOUT) which indicates when one of the monitored input voltages exceeds the upper threshold. In addition, it also includes a reset output (RSTOUT) and two status outputs (STA1, STA2) to indicate when the monitoring parameters are out of range.

All of the abovementioned features make the BD49L49G-TL a reliable solution for powering and monitoring various embedded applications. Its small package size and wide operating temperature range make it ideal for use in portable and automotive devices, home audio equipment, medical instruments, industrial controllers and many other applications.

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