MIC3808YM

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision, Adjustable Threshold
• Package: SOIC-8
• Essence: Monitors and controls the voltage levels in electronic systems to ensure proper operation and prevent damage.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage: 1.6V to 5.5V
• Threshold Voltage Range: 0.4V to 4.9V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)

Pin Configuration

The MIC3808YM has a standard SOIC-8 pin configuration:

```

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| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output (Active Low) --| THRESHOLD |-- Pin 3: Threshold Input --| SENSE IN |-- Pin 4: Sense Input --| | --| | --| | --| | |___________| ```

Functional Features

• Precision Monitoring: The MIC3808YM provides accurate voltage monitoring with an adjustable threshold, ensuring reliable system operation.
• Reset Output: The active-low reset output signal is triggered when the monitored voltage falls below the set threshold, indicating a power failure or abnormal condition.
• Adjustable Threshold: The threshold voltage can be easily adjusted using an external resistor, allowing customization for different applications.
• Low Power Consumption: With a quiescent current of only 10µA, the MIC3808YM minimizes power consumption, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - High precision voltage monitoring - Adjustable threshold for customization - Low power consumption - Compact SOIC-8 package

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Single-channel voltage monitoring

Working Principles

The MIC3808YM operates by comparing the voltage at the SENSE IN pin with the threshold voltage set at the THRESHOLD pin. When the monitored voltage falls below the threshold, the RESET OUT pin is pulled low, indicating a power failure or abnormal condition. The threshold voltage can be adjusted using an external resistor connected to the THRESHOLD pin.

Detailed Application Field Plans

The MIC3808YM is widely used in various electronic systems where precise voltage monitoring is crucial. Some application fields include:

1. Power Supply Monitoring: Ensures stable operation of power supplies by detecting undervoltage conditions and triggering appropriate actions.
2. Battery-Powered Devices: Protects batteries from over-discharge by initiating shutdown or warning signals when the battery voltage drops below a certain level.
3. Industrial Control Systems: Monitors critical voltages in industrial control systems to prevent damage and ensure reliable operation.
4. Automotive Electronics: Used in automotive applications to monitor voltage levels and trigger actions such as engine shutdown or warning indicators in case of power supply issues.

Detailed and Complete Alternative Models

1. MIC803: Similar voltage supervisor IC with fixed threshold options and different package options.
2. MAX823: Voltage supervisor IC with adjustable threshold and additional features like manual reset input.
3. TL7705: Precision voltage supervisor IC with adjustable threshold and wide operating temperature range.

These alternative models offer similar functionality to the MIC3808YM and can be considered based on specific requirements and preferences.

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