MIC803-26D4VC3-TR

PMIC (Power Management ICs) supervisors are vital components for steady power on modern electronic systems. They usually take the form of a single IC device or chip and provide a stable power source to the electronics that drives them.

MIC803-26D4VC3-TR, a contemporary PMIC supervisor, is designed to provide a reliable, smooth and constant power to applications such as automotive, industrial, and medical electronics. The supervisor offers a variety of features and functions, including an adjustable comparator threshold to detect undervoltage (UV), brownout (BO), overvoltage (OV) conditions, and a reset output that can be used to inform the system of errors or irregularities during its operation.

The IC operates optimally in temperatures ranging between -40 and +85°C. It is offered in a TQFN-10 package that has a standard layout of 5mm×5mm. Alternative e-packs include Micro-8 (1.4mm×1.4mm) and Slim-3 (3mm×2.1mm).

Working principle

Simply put, the MIC803-26D4VC3-TR supervisor is designed to monitor and guard the power supply of the system it is connected to. When a voltage drops below the adjustable UV threshold, a reset output is generated, signaling that the power supply has been depleted and needs to be reset. When the reset output is activated, the reset pin can be used to restore the system back to its normal performance.

The supervisor works with a power supply between 2.25V and 5.5V and the adjustable voltage thresholds can range between 0 and VDD (Voltage Derating Device). The monitoring voltage levels are adjustable and can be set manually, while the reset output can be matched with the system\'s requirements. The IC features advanced features such as a watchdog timer and various configurable time periods. The time periods are the time to trigger, enable watch dog, manual reset input filter and selectable reset output asserting time.

Application field

The MIC803-26D4VC3-TR supervisor is suitable for a variety of low-power wide variety applications. Typical applications are automotive, consumer, and industrial systems. Automotive applications include control and monitoring of battery voltages, while consumer applications can include microprocessors, digital cameras, and personal multimedia players. Industrial applications are mostly in the industrial and medical field, where high reliability and accuracy is always required.

The supervisor can be used in a variety of regulated (line-powered) and unregulated power supplies. Line-powered applications include charging systems, power converters, and motor control, while unregulated power supplies include solar cells, fuel cells, and batteries. For example, in automotive applications, the MIC803-26D4VC3-TR supervisor can be used in combination with a battery charging system to provide a safe power source and monitor the battery voltage during charging and discharge cycles.

In conclusion, the MIC803-26D4VC3-TR is an excellent choice for a variety of applications in industrial, automotive, and consumer electronics. The adjustable features make it the ideal choice for any power management application, ensuring a constant and reliable source of power to the system.