MC34164D-3R2G

Product Overview

Category

MC34164D-3R2G belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and controlling the voltage levels in electronic circuits.

Characteristics

• Voltage range: 1.0V to 40V
• Low quiescent current: 10µA (typical)
• Adjustable reset threshold voltage
• Power-on reset delay time: 100ms (typical)
• Open-drain output
• Wide operating temperature range: -40°C to +125°C
• Small package size: SOT-23-3

Package

MC34164D-3R2G is available in a small SOT-23-3 package.

Essence

The essence of MC34164D-3R2G lies in its ability to monitor and control voltage levels, ensuring proper functioning of electronic circuits.

Packaging/Quantity

It is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Supply Voltage Range: 1.0V to 40V
• Reset Threshold Voltage Range: 0.4V to 5.0V
• Quiescent Current: 10µA (typical)
• Power-On Reset Delay Time: 100ms (typical)
• Operating Temperature Range: -40°C to +125°C
• Output Type: Open-drain

Detailed Pin Configuration

MC34164D-3R2G has three pins arranged as follows:

```

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| | --| VDD | --| /RESET| --| GND | |_______| ```

1. VDD: Connect this pin to the positive supply voltage.
2. /RESET: This is the open-drain reset output pin. It goes low when the monitored voltage falls below the threshold.
3. GND: Connect this pin to the ground.

Functional Features

• Voltage Monitoring: MC34164D-3R2G continuously monitors the input voltage and provides a reset signal when it falls below the set threshold.
• Adjustable Threshold: The reset threshold voltage can be adjusted using external resistors, allowing flexibility in setting the desired voltage level.
• Power-On Reset Delay: It incorporates a power-on reset delay circuit to ensure stable operation during power-up.
• Open-Drain Output: The open-drain output allows for easy interfacing with other devices.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various electronic circuits.
• Low quiescent current minimizes power consumption.
• Adjustable reset threshold provides flexibility in voltage monitoring.
• Small package size allows for space-saving designs.
• Open-drain output simplifies interfacing with other components.

Disadvantages

• Lack of built-in hysteresis may lead to potential oscillations near the threshold voltage.
• Limited number of pins restricts additional functionality without external circuitry.

Working Principles

MC34164D-3R2G operates by comparing the input voltage with the set threshold voltage. When the input voltage drops below the threshold, the /RESET pin is pulled low, indicating a reset condition. The reset remains active until the input voltage rises above the threshold and the delay time elapses.

Detailed Application Field Plans

MC34164D-3R2G finds applications in various fields where voltage monitoring and control are crucial. Some of the common application areas include:

1. Power Supplies: It ensures proper voltage regulation and protection in power supply circuits.
2. Microcontrollers: It provides a reliable reset signal to microcontrollers during power-up or voltage fluctuations.
3. Automotive Electronics: It monitors critical voltage levels in automotive systems, preventing damage due to under-voltage conditions.
4. Industrial Control Systems: It plays a vital role in maintaining stable voltage levels in industrial control systems, ensuring proper operation.

Detailed and Complete Alternative Models

1. MAX823: Voltage supervisor with adjustable threshold and push-pull output.
2. TL7705: Precision voltage supervisor with fixed threshold and open-drain output.
3. ADM6315: Microprocessor supervisory circuit with adjustable threshold and push-pull output.

These alternative models offer similar functionality and can be considered as alternatives to MC34164D-3R2G based on specific requirements.

In conclusion, MC34164D-3R2G is a voltage supervisor that provides reliable voltage monitoring and control in electronic circuits. Its adjustable threshold, low quiescent current, and small package size make it suitable for various applications. However, the lack of built-in hysteresis and limited pin count should be taken into consideration.