TPS3851H33EDRBT - English Editing Encyclopedia Entry

Product Overview

Category

The TPS3851H33EDRBT belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic systems. It ensures that the voltage remains within specified limits, providing protection against overvoltage or undervoltage conditions.

Characteristics

• Voltage Range: The TPS3851H33EDRBT operates within a voltage range of 2.5V to 6V.
• Low Power Consumption: This IC consumes minimal power, making it suitable for battery-powered applications.
• Adjustable Thresholds: The voltage thresholds for overvoltage and undervoltage detection can be adjusted according to the specific requirements of the system.
• Reset Output: The TPS3851H33EDRBT provides a reset signal when the monitored voltage crosses the set threshold, allowing for appropriate actions to be taken by the system.

Package and Quantity

The TPS3851H33EDRBT is available in a small outline transistor (SOT) package with eight pins. It is commonly supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 2.5V to 6V
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 3µA (typical)
• Reset Timeout Period: 200ms (typical)
• Output Type: Active Low

Pin Configuration

The TPS3851H33EDRBT has the following pin configuration:

```

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| | --| VDD | --| GND | --| MR | --| RESET | --| VIT | --| GND | --| VDD | |___________| ```

Functional Features

1. Voltage Monitoring: The TPS3851H33EDRBT continuously monitors the voltage level and compares it with the set thresholds.
2. Adjustable Thresholds: The voltage thresholds for overvoltage and undervoltage detection can be adjusted using external resistors.
3. Reset Output: When a voltage excursion beyond the set thresholds occurs, the TPS3851H33EDRBT generates a reset signal to initiate system recovery or shutdown procedures.
4. Low Power Consumption: This IC consumes minimal power, making it suitable for battery-powered applications.
5. Fast Response Time: The TPS3851H33EDRBT provides a quick response to voltage deviations, ensuring timely protection of the system.

Advantages and Disadvantages

Advantages

• Provides reliable voltage monitoring and protection for electronic systems.
• Adjustable thresholds allow customization according to specific requirements.
• Low power consumption extends battery life in portable devices.
• Compact package size enables space-efficient designs.

Disadvantages

• Limited to voltage monitoring and does not offer additional features like current monitoring.
• Requires external resistors for threshold adjustment, adding complexity to the design.

Working Principles

The TPS3851H33EDRBT operates by comparing the monitored voltage with the set thresholds. It utilizes an internal voltage reference and comparator circuitry to detect overvoltage and undervoltage conditions. When a voltage excursion is detected, the IC generates a reset signal, which can be used to trigger appropriate actions within the system, such as resetting microcontrollers or shutting down critical components.

Application Field Plans

The TPS3851H33EDRBT finds application in various fields where voltage monitoring and protection are crucial. Some potential application areas include:

1. Power Supply Units: Ensuring stable voltage levels in power supply units to prevent damage to sensitive components.
2. Industrial Automation: Monitoring voltage in control systems to avoid malfunctions and protect equipment.
3. Automotive Electronics: Safeguarding automotive electronics from voltage fluctuations, enhancing reliability.
4. Telecommunications: Protecting communication devices from voltage anomalies, ensuring uninterrupted operation.

Alternative Models

1. TPS3850H33EDRBT: Similar to the TPS3851H33EDRBT, but with fixed voltage thresholds.
2. MAX823L: Voltage supervisor IC with adjustable thresholds and a different pin configuration.
3. ADM1175: Integrated circuit offering both voltage and current monitoring capabilities.

Note: These alternative models may have varying specifications and features, so careful consideration should be given to specific requirements before selecting an alternative.

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