MIC3808BMM

Product Overview

Category

MIC3808BMM belongs to the category of integrated circuits (ICs).

Use

The MIC3808BMM is commonly used as a voltage supervisor or monitor in various electronic systems.

Characteristics

• Voltage supervisor with adjustable threshold
• Low supply current
• Wide operating voltage range
• Small package size (MM)
• High accuracy

Package

MIC3808BMM is available in a miniature 8-pin MSOP (MM) package.

Essence

The essence of MIC3808BMM lies in its ability to monitor and control voltage levels in electronic systems, ensuring proper functioning and preventing damage due to overvoltage or undervoltage conditions.

Packaging/Quantity

MIC3808BMM is typically packaged in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Adjustable Threshold Voltage Range: 0.4V to 5.0V
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

MIC3808BMM features an 8-pin configuration as follows:

```

---

| | --| VDD GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output (RESET OUT) --| THRESHOLD |-- Pin 3: Threshold Voltage Input (THRESHOLD) --| MR/ |-- Pin 4: Manual Reset Input (MR/) --| RESET |-- Pin 5: Reset Input (RESET) --| VDD |-- Pin 6: Power Supply (VDD) --| NC |-- Pin 7: No Connection (NC) --| NC |-- Pin 8: No Connection (NC) |___________|

```

Functional Features

• Adjustable threshold voltage allows customization for specific applications.
• Reset output provides a signal indicating when the monitored voltage is within the desired range.
• Manual reset input enables external control over the reset function.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages

• Wide operating voltage range makes it suitable for various electronic systems.
• Small package size saves board space.
• High accuracy ensures reliable voltage monitoring.

Disadvantages

• Limited number of pins may restrict its use in complex systems requiring more inputs/outputs.
• Lack of built-in hysteresis may result in oscillations near the threshold voltage.

Working Principles

MIC3808BMM operates by comparing the input voltage at the THRESHOLD pin with an internally generated reference voltage. When the input voltage falls below the threshold, the RESET OUT pin goes low, indicating a reset condition. Conversely, when the input voltage rises above the threshold, the RESET OUT pin goes high, signaling that the voltage is within the desired range.

Detailed Application Field Plans

MIC3808BMM finds applications in various fields, including but not limited to: 1. Power supply monitoring in industrial equipment 2. Battery voltage monitoring in portable devices 3. Overvoltage protection in automotive systems 4. Undervoltage detection in communication systems 5. Voltage supervision in medical devices

Detailed and Complete Alternative Models

Some alternative models to MIC3808BMM include: 1. MAX809: Voltage supervisors with adjustable threshold from Maxim Integrated. 2. TL7705: Supply voltage supervisors with fixed threshold from Texas Instruments. 3. ADM6315: Microprocessor supervisory circuits with adjustable threshold from Analog Devices. 4. TPS3839: Ultra-low-power voltage supervisors with fixed threshold from Texas Instruments. 5. LTC2937: Adjustable overvoltage and undervoltage supervisors from Linear Technology.

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

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