TPS3307-33DG4

Product Overview

Category

The TPS3307-33DG4 belongs to the category of voltage supervisors or voltage monitors.

Use

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

Characteristics

• The TPS3307-33DG4 is a low-power, precision voltage supervisor.
• It operates with a supply voltage range of 2.5V to 10V.
• The device provides an active-low reset output signal when the monitored voltage falls below a preset threshold.
• It offers a fixed threshold voltage of 3.3V.
• The TPS3307-33DG4 has a low quiescent current consumption, making it suitable for battery-powered applications.
• It features a wide operating temperature range of -40°C to +125°C.

Package

The TPS3307-33DG4 is available in a small SOT-23 package.

Essence

The essence of the TPS3307-33DG4 is its ability to monitor and control the voltage levels in electronic systems, ensuring proper operation and preventing damage due to undervoltage conditions.

Packaging/Quantity

The TPS3307-33DG4 is typically sold in reels, with 3000 units per reel.

Specifications

• Supply Voltage Range: 2.5V to 10V
• Threshold Voltage: 3.3V (fixed)
• Quiescent Current: 15µA (typical)
• Operating Temperature Range: -40°C to +125°C
• Output Type: Active-Low Reset

Detailed Pin Configuration

The TPS3307-33DG4 has the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)

Functional Features

• Voltage Monitoring: The TPS3307-33DG4 continuously monitors the input voltage and generates a reset signal when it falls below the preset threshold.
• Active-Low Reset Output: The device provides an active-low reset output signal, which can be used to reset or initialize the system when the monitored voltage is below the threshold.
• Manual Reset: The MR pin allows for manual resetting of the device, overriding the voltage monitoring function.

Advantages and Disadvantages

Advantages

• Low quiescent current consumption makes it suitable for battery-powered applications.
• Wide operating temperature range enables usage in harsh environments.
• Small package size allows for space-efficient integration into electronic systems.
• Fixed threshold voltage simplifies design considerations.

Disadvantages

• The fixed threshold voltage may not be suitable for all applications requiring different voltage levels.
• Limited availability of alternative models with varying threshold voltages.

Working Principles

The TPS3307-33DG4 works by comparing the input voltage with the fixed threshold voltage. When the input voltage drops below the threshold, the device triggers the reset output, indicating an undervoltage condition. This reset signal can be used to initiate system recovery or shutdown procedures.

Detailed Application Field Plans

The TPS3307-33DG4 finds application in various fields, including but not limited to: 1. Battery-powered devices: It ensures proper operation and prevents damage due to undervoltage conditions in portable electronics. 2. Industrial control systems: It provides voltage supervision to critical components, ensuring reliable operation. 3. Automotive electronics: It monitors voltage levels in automotive systems, preventing malfunctions and protecting sensitive components.

Detailed and Complete Alternative Models

While the TPS3307-33DG4 offers a fixed threshold voltage of 3.3V, there are alternative models available from Texas Instruments that provide different threshold voltages. Some examples include: - TPS3307-25DG4 (2.5V threshold) - TPS3307-50DG4 (5.0V threshold) - TPS3307-12DG4 (12.0V threshold)

These alternative models cater to different voltage monitoring requirements in various applications.

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