TPS3305-33D

Product Overview

Category

The TPS3305-33D belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision: The TPS3305-33D ensures that the voltage remains within specified limits.
• Reset generation: It generates a reset signal when the voltage falls below a predetermined threshold.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating temperature range: It can operate reliably across a wide temperature range, making it suitable for various environments.

Package

The TPS3305-33D comes in a small surface-mount package, allowing for easy integration into electronic circuits.

Essence

The essence of the TPS3305-33D lies in its ability to monitor and control voltage levels, ensuring the proper functioning of electronic systems.

Packaging/Quantity

The TPS3305-33D is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply voltage range: 2.7V to 6.5V
• Threshold voltage: 3.3V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 10µA (typical)
• Power-on reset time: 200ms (typical)

Detailed Pin Configuration

The TPS3305-33D has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. RESET: Output reset signal
4. MR: Manual reset input

Functional Features

1. Voltage Monitoring: The TPS3305-33D continuously monitors the input voltage and compares it to the threshold voltage.
2. Reset Generation: When the input voltage falls below the threshold voltage, the TPS3305-33D generates a reset signal to initiate system reset.
3. Manual Reset: The device provides a manual reset input (MR) for external control of the reset function.
4. Power-On Reset: Upon power-up, the TPS3305-33D ensures a stable reset signal is generated after a specified delay.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset generation.
• Low power consumption.
• Wide operating temperature range.
• Small package size for easy integration.

Disadvantages

• Limited threshold voltage options.
• Lack of advanced features compared to more specialized voltage supervisors.

Working Principles

The TPS3305-33D operates by comparing the input voltage with the threshold voltage. If the input voltage drops below the threshold, the device generates a reset signal. This reset signal can be used to initiate a system reset or perform other necessary actions. The TPS3305-33D also includes a manual reset input for external control of the reset function.

Detailed Application Field Plans

The TPS3305-33D finds applications in various electronic systems where voltage monitoring and reset generation are critical. Some specific application fields include:

1. Microcontrollers: Ensuring reliable operation by monitoring supply voltage levels.
2. Industrial Control Systems: Providing voltage supervision to prevent system malfunctions.
3. Automotive Electronics: Monitoring battery voltage to protect sensitive components.
4. Power Management: Enabling efficient power management by controlling system resets.

Detailed and Complete Alternative Models

1. TPS3305-25D: Similar to TPS3305-33D but with a threshold voltage of 2.5V.
2. TPS3305-50D: Similar to TPS3305-33D but with a threshold voltage of 5.0V.
3. TPS3305-ADJ: Adjustable threshold voltage version, allowing customization for specific applications.

These alternative models provide flexibility in choosing the appropriate threshold voltage for different system requirements.

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