TPS3705-33DGNG4

Product Overview

Category

The TPS3705-33DGNG4 belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

• Voltage threshold: 3.3V
• Low quiescent current: 1.6µA (typical)
• Wide supply voltage range: 2.5V to 18V
• Adjustable delay time
• Open-drain output
• Small package size: SOT-23-6

Package

The TPS3705-33DGNG4 is available in a small SOT-23-6 package.

Essence

The essence of the TPS3705-33DGNG4 is its ability to monitor and supervise voltage levels, ensuring proper functioning of electronic systems.

Packaging/Quantity

The TPS3705-33DGNG4 is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply voltage range: 2.5V to 18V
• Threshold voltage: 3.3V
• Quiescent current: 1.6µA (typical)
• Operating temperature range: -40°C to +85°C
• Output type: Open-drain

Detailed Pin Configuration

The TPS3705-33DGNG4 has the following pin configuration:

1. GND (Ground)
2. VDD (Supply voltage)
3. RESET (Output)
4. MR (Manual reset input)
5. TH (Threshold adjust)
6. NC (No connection)

Functional Features

• Voltage monitoring: The TPS3705-33DGNG4 continuously monitors the voltage level and provides an output signal when it falls below the threshold.
• Adjustable threshold: The threshold voltage can be adjusted using the TH pin, allowing flexibility in voltage monitoring.
• Manual reset: The MR pin allows for a manual reset of the device, providing control over the system's operation.
• Open-drain output: The open-drain output allows for easy integration with other components in the system.

Advantages and Disadvantages

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Low quiescent current minimizes power consumption.
• Adjustable threshold provides flexibility in voltage monitoring.
• Small package size allows for space-saving designs.

Disadvantages

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

Working Principles

The TPS3705-33DGNG4 operates by comparing the input voltage with the threshold voltage set by the TH pin. When the input voltage falls below the threshold, the RESET pin is pulled low, indicating a fault condition. The device continuously monitors the voltage level and keeps the RESET pin low until the voltage rises above the threshold or a manual reset is triggered through the MR pin.

Detailed Application Field Plans

The TPS3705-33DGNG4 finds applications in various fields, including:

1. Power supply monitoring in industrial automation systems.
2. Battery voltage monitoring in portable electronic devices.
3. Overvoltage protection in automotive electronics.
4. Voltage supervision in telecommunications equipment.
5. Fault detection in medical devices.

Detailed and Complete Alternative Models

Some alternative models to the TPS3705-33DGNG4 include:

1. TPS3705-30DGNG4: Similar to TPS3705-33DGNG4 but with a threshold voltage of 3.0V.
2. TPS3705-25DGNG4: Similar to TPS3705-33DGNG4 but with a threshold voltage of 2.5V.
3. TPS3705-18DGNG4: Similar to TPS3705-33DGNG4 but with a threshold voltage of 1.8V.

These alternative models provide options for different voltage monitoring requirements.

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