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TPS3851G18SDRBR

TPS3851G18SDRBR

Product Overview

Category

The TPS3851G18SDRBR belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems.

Characteristics

  • Voltage threshold: 1.8V
  • Supply voltage range: 1.6V to 6V
  • Low quiescent current: 2.5µA (typical)
  • Adjustable power-on reset delay time
  • Wide temperature range: -40°C to +125°C
  • Small package size: 6-pin WSON

Package and Quantity

The TPS3851G18SDRBR is available in a small 6-pin WSON package. It is typically sold in reels with a quantity of 2500 units per reel.

Specifications

  • Voltage threshold accuracy: ±1%
  • Power supply current: 2.5µA (typical)
  • Power-on reset delay time range: 100ms to 10s
  • Operating temperature range: -40°C to +125°C
  • Input voltage range: 1.6V to 6V
  • Output type: Active low, push-pull

Pin Configuration

The TPS3851G18SDRBR has the following pin configuration:

```


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

Functional Features

  • Power-on reset generation
  • Undervoltage detection
  • Manual reset input
  • Active-low reset output
  • Adjustable reset delay time

Advantages and Disadvantages

Advantages

  • Accurate voltage threshold monitoring
  • Low quiescent current consumption
  • Wide operating temperature range
  • Small package size for space-constrained applications

Disadvantages

  • Limited input voltage range (1.6V to 6V)
  • Fixed output type (active low, push-pull)

Working Principles

The TPS3851G18SDRBR monitors the input voltage and generates a reset signal when the voltage falls below the specified threshold. It ensures proper system initialization and prevents erratic behavior during power-up or brownout conditions. The adjustable reset delay time allows for customization based on specific application requirements.

Application Field Plans

The TPS3851G18SDRBR finds applications in various electronic systems where voltage monitoring and supervision are critical. Some potential application fields include:

  1. Battery-powered devices: Ensuring proper shutdown and restart sequences to protect data integrity.
  2. Industrial control systems: Monitoring power supply voltages to prevent equipment damage or malfunction.
  3. Automotive electronics: Detecting undervoltage conditions to trigger appropriate actions and prevent system failures.
  4. Telecommunications equipment: Providing reliable power-on reset functionality to ensure stable operation.

Alternative Models

For users seeking alternative options, the following models can be considered:

  1. TPS3839K33DBVR
  2. MAX823LEUK-T
  3. ADM708TARZ
  4. LTC2910IGN#PBF

These models offer similar voltage supervisory features and can be evaluated based on specific application requirements.

In conclusion, the TPS3851G18SDRBR is a voltage supervisor with accurate monitoring capabilities, low power consumption, and a wide temperature range. Its small package size makes it suitable for space-constrained applications. However, it has a limited input voltage range and a fixed output type. With its functional features and advantages, it finds applications in various fields such as battery-powered devices, industrial control systems, automotive electronics, and telecommunications equipment. Users can also consider alternative models based on their specific needs.

10个与TPS3851G18SDRBR在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of TPS3851G18SDRBR in technical solutions:

Q1: What is the TPS3851G18SDRBR? A1: The TPS3851G18SDRBR is a voltage supervisor and reset IC designed to monitor the power supply voltage of a system and provide a reset signal when the voltage falls below a certain threshold.

Q2: What is the operating voltage range of the TPS3851G18SDRBR? A2: The TPS3851G18SDRBR operates within a voltage range of 1.8V to 5.5V.

Q3: How does the TPS3851G18SDRBR provide a reset signal? A3: The TPS3851G18SDRBR provides an active-low reset signal when the monitored voltage falls below the specified threshold voltage.

Q4: Can the threshold voltage be adjusted on the TPS3851G18SDRBR? A4: No, the threshold voltage on the TPS3851G18SDRBR is fixed at 1.8V.

Q5: What is the typical reset time delay of the TPS3851G18SDRBR? A5: The typical reset time delay of the TPS3851G18SDRBR is 200ms.

Q6: Is the TPS3851G18SDRBR suitable for battery-powered applications? A6: Yes, the TPS3851G18SDRBR is suitable for battery-powered applications due to its low quiescent current and wide operating voltage range.

Q7: Can the TPS3851G18SDRBR be used in automotive applications? A7: Yes, the TPS3851G18SDRBR is AEC-Q100 qualified and can be used in automotive applications.

Q8: Does the TPS3851G18SDRBR have any built-in protection features? A8: Yes, the TPS3851G18SDRBR has built-in overvoltage and undervoltage lockout protection.

Q9: What is the package type of the TPS3851G18SDRBR? A9: The TPS3851G18SDRBR is available in a small 6-pin WSON package.

Q10: Can the TPS3851G18SDRBR be used in industrial control systems? A10: Yes, the TPS3851G18SDRBR is suitable for use in industrial control systems due to its wide operating temperature range and robust design.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information.