TPS3851G50SDRBR

Product Overview

Category

The TPS3851G50SDRBR belongs to the category of voltage supervisors.

Use

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

Characteristics

• The TPS3851G50SDRBR is a low-power voltage supervisor with a wide operating voltage range.
• It offers accurate voltage monitoring and detection capabilities.
• This device provides a reset signal when the monitored voltage falls below a specified threshold.
• It has a low quiescent current, making it suitable for battery-powered applications.
• The TPS3851G50SDRBR operates over a wide temperature range, ensuring reliability in various environments.

Package

The TPS3851G50SDRBR comes in a small outline package (SOT) with a dimension of 2 mm x 2 mm.

Essence

The essence of the TPS3851G50SDRBR is its ability to monitor voltage levels and provide a reset signal when necessary, ensuring the proper functioning of electronic systems.

Packaging/Quantity

This product is typically packaged in reels, with a quantity of 3000 units per reel.

Specifications

• Operating Voltage Range: 1.8 V to 6.5 V
• Threshold Accuracy: ±1.5%
• Quiescent Current: 1.5 µA (typical)
• Reset Timeout Period: Adjustable
• Power-On Reset Delay: 20 ms (typical)
• Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The TPS3851G50SDRBR has the following pin configuration:

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

Functional Features

• Accurate voltage monitoring and detection
• Reset signal generation when voltage falls below threshold
• Adjustable reset timeout period
• Manual reset input for immediate system reset
• Low quiescent current for power efficiency
• Power-on reset delay to ensure stable operation during power-up

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for versatile applications
• Accurate voltage monitoring ensures system reliability
• Low quiescent current makes it suitable for battery-powered devices
• Adjustable reset timeout period provides flexibility in system design
• Power-on reset delay prevents false resets during power-up

Disadvantages

• Limited pin configuration options may not suit all system requirements
• Small package size may pose challenges during assembly or soldering processes

Working Principles

The TPS3851G50SDRBR operates by continuously monitoring the voltage level at the VDD pin. When the voltage falls below the specified threshold, the device generates a reset signal on the RESET pin. This reset signal can be used to initiate a system reset or trigger other necessary actions.

The reset timeout period can be adjusted using external components, allowing designers to customize the timing of the reset signal. Additionally, the MR pin provides a manual reset input, enabling an immediate system reset when required.

Detailed Application Field Plans

The TPS3851G50SDRBR finds application in various fields, including:

1. Battery-powered devices: It ensures proper voltage monitoring and system reset in portable electronics, such as smartphones, tablets, and wearables.
2. Industrial automation: The device helps maintain stable voltage levels in control systems, preventing malfunctions or damage.
3. Automotive electronics: It plays a crucial role in monitoring voltage in automotive systems, ensuring reliable operation and protecting sensitive components.
4. Internet of Things (IoT): The TPS3851G50SDRBR is suitable for IoT devices that require efficient power management and voltage supervision.

Detailed and Complete Alternative Models

1. TPS3850G33: Similar to the TPS3851G50SDRBR, but with a different operating voltage range (2.93 V to 3.08 V).
2. TPS3839K33: A voltage supervisor with a fixed threshold voltage of 3.3 V, suitable for specific applications.
3. TPS3808G01: Offers adjustable reset timeout period and a wider operating temperature range (-40°C to +150°C).

These alternative models provide options for different voltage ranges, fixed thresholds, and extended temperature ranges, catering to diverse application requirements.

In conclusion, the TPS3851G50SDRBR is a versatile voltage supervisor that ensures accurate voltage monitoring and provides a reset signal when necessary. Its low power consumption, wide operating voltage range, and small package size make it suitable for various electronic systems. With its functional features, advantages, and detailed application field plans, the TPS3851G50SDRBR proves to be a reliable component in numerous industries.