MIC6315-30D3UY-TR Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	3V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-143
Base Part Number:	MIC6315

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MIC6315-30D3UY-TR: Supervisors Application Field and Working Principle

Microchip Technology Incorporated is offering the MIC6315-30D3UY-TR supervisor IC, a single channel monitoring supervisor for power up, reset and power normal conditions. In the absence of a valid power supply, the MIC6315-30D3UY-TR can detect this condition and actively guide the system through a power-on sequence. This supervisors application field includes computer systems, embedded industrial control systems, telecom systems, power supplies and medical equipment.

Overview

The MIC6315-30D3UY-TR is a single-channel Low-Dropout (LDO) supervisor that provides a single feedback digital output indicator reflecting the state of the power supply. The MIC6315-30D3UY-TR\'s monitoring window is programmable, allowing for both undervoltage (UV) and overvoltage (OV) fault thresholds to be adjusted over a wide range. Its fast response mode allows the MIC6315-30D3UY-TR to respond to voltage transients, preventing the system from entering an unexpected condition. The output of the MIC6315-30D3UY-TR can be used to control power resource switch, power staging devices, and reset generation, depending on the application.

Features

The MIC6315-30D3UY-TR supervisor IC has many features that make it ideal for a variety of applications. It is available in a 3-by-2 mm HVQFN surface-mount package, which allows for a tightly-packed PCB form factor. It also has low quiescent current, allowing longer battery life in portable systems. Additionally, the MIC6315-30D3UY-TR features 8-pin programmable thresholds, allowing the user to adjust the thresholds to suit the application. Finally, its 1.8V to 5.5V operating voltage range makes it suitable for both power-managed, battery-powered and DC flyback/bucked applications.

General Application Field

The MIC6315-30D3UY-TR is suitable for general-purpose systems or embedded industrial control systems that require monitoring of the power supply for both UV and OV conditions. This supervisor is also well-suited for telecom systems, power supplies and medical equipment, as the adjustable thresholds and fast response time make it capable of reacting swiftly to a wide range of conditions.

Working Principle

The MIC6315-30D3UY-TR has two operating modes: reference mode and monitoring mode. In reference mode, the IC will monitor the power supply and decide if there is an overvoltage or undervoltage condition. If there is, the output signal is driven either low (OV) or high (UV) depending on the fault state.If the power supply is within the valid range, the IC enters the monitoring mode. In this mode, the supervisor IC will constantly monitor the supply voltage and if the supply drops below a user-programmable threshold, the output signal is driven low. The user-programmable thresholds for both overvoltage and undervoltage conditions can be adjusted over a wide range. In addition, the fast response mode allows the IC to respond quickly to changes in the supply voltage.

Conclusion

The MIC6315-30D3UY-TR supervisor IC is a highly versatile and robust supervisor IC, suitable for a wide variety of applications. Its adjustable thresholds and fast response time make it ideal for monitoring power supplies for both UV and OV conditions in computer systems, embedded industrial control systems, telecom systems, power supplies and medical equipment. Additionally, its 3-by-2 mm HVQFN package allows for a tightly-packed PCB form factor, while its low quiescent current ensures longer battery life in portable systems. With its versatility and application field, the MIC6315-30D3UY-TR is an ideal choice for various supervision applications.

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