S-80860CLUA-B7LT2U

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Power management integrated circuits (PMICs) are a generic term used to describe a wide range of integrated circuits that are used to manage power. This can include anything from taking a limited amount of power and delivering it to an ever-bigger line, to monitoring power and making sure it remains stable and safe. PMICs are critical components in many electronic designs due to their ability to manage and deliver power efficiently. Thus, PMICs are indispensable for the proliferation of portable, mobile and Internet-of-Things (IoT) electronics.

As a subcategory of PMICs, Supervisors are special purpose devices that monitor an input for certain conditions such as overvoltage, undervoltage, and reverse current, and take actions like resetting microcontrollers and remote systems as a consequence. Supervisors are used to ensure a system is operating correctly, and they protect sensitive components from damage.

The S-80860CLUA-B7LT2U is a microprocessor supervisory circuit made by Seiko Instruments Inc. This device includes undervoltage (UV) lockout, overvoltage (OV) lockout, manual reset, active-high reset output, active-high OV lockout indication output, reset cycle control input, and a wide range of supply voltage. The S-80860CLUA-B7LT2U is ideal for a wide range of applications, including embedded systems, microprocessor-based systems, and power management.

Application Field

The S-80860CLUA-B7LT2U is designed for embedded systems, microprocessor-based systems, and power management applications. It features low power consumption, a wide operating temperature (-40 to +125 °C) range, and can be used in a wide range of supply voltage from 1.64V to 5.5V. It is widely used in consumer electronics, automotive, industrial control, telecommunications, and medical devices.

Working Principle

The supervisor is capable of detecting abnormalities in the supply voltage and will take action to reset the microcontroller and remote systems. When the supply voltage drops below a predetermined level, the supervisor interrupts the power to the system and initiates the reset sequence. This ensures that all components in the system are shut down safely and reduces the risk of damage to sensitive components. If conditions become normal again, the supervisory circuit will restore power to the system and allow it to continue operation. The S-80860CLUA-B7LT2U also provides an active-high OV lockout indication output. When the supply voltage exceeds the upper threshold, the OV lockout output will be activated, allowing an external warning to be triggered.

The S-80860CLUA-B7LT2U features a manual reset input, allowing the user to manually reset the device. This can be used to reset the supervisor when necessary, as well as to test its functionality. The device also has a reset cycle control input, which allows the user to configure the reset cycle time.

Conclusion

The S-80860CLUA-B7LT2U is a versatile and feature-rich supervisor that is ideal for embedded systems, microprocessor-based systems, and power management applications. It is capable of monitoring input voltages and taking action if they exceed predefined thresholds, safeguarding against unexpected power fluctuations. Furthermore, the manual reset input and reset cycle control input give users the flexibility to configure the supervisor as they see fit.

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