TPS3851G33EDRBR

Product Overview

Category

The TPS3851G33EDRBR belongs to the category of voltage supervisors.

Use

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

Characteristics

• The TPS3851G33EDRBR is a low-power, precision voltage supervisor.
• It operates with a supply voltage range from 1.6V to 6.5V.
• The device offers an adjustable threshold voltage with a ±0.5% accuracy.
• It has a wide temperature range of -40°C to +125°C, making it suitable for various environments.
• The TPS3851G33EDRBR provides a reset signal during power-up, power-down, and brownout conditions.
• It features a manual reset input and a watchdog timer for system monitoring.

Package

The TPS3851G33EDRBR comes in a small 6-pin WSON package.

Essence

The essence of the TPS3851G33EDRBR lies in its ability to ensure stable voltage levels in electronic systems, preventing malfunctions and damage.

Packaging/Quantity

This product is typically sold in reels, with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Accuracy: ±0.5%
• Operating Temperature Range: -40°C to +125°C
• Manual Reset Input: Yes
• Watchdog Timer: Yes

Detailed Pin Configuration

The TPS3851G33EDRBR has the following pin configuration:

1. GND (Ground)
2. MR (Manual Reset)
3. VDD (Supply Voltage)
4. RESET (Reset Output)
5. VIT (Voltage Input)
6. NC (No Connection)

Functional Features

• Voltage monitoring and supervision
• Adjustable threshold voltage
• Reset signal generation during power-up, power-down, and brownout conditions
• Manual reset input for system control
• Watchdog timer for system monitoring

Advantages and Disadvantages

Advantages

• Low-power operation
• Wide temperature range
• Accurate threshold voltage
• Small package size
• Provides reset signal during various power conditions

Disadvantages

• Limited pin configuration options
• May require additional components for specific applications

Working Principles

The TPS3851G33EDRBR operates by continuously monitoring the voltage level at the VIT pin. It compares this voltage with an adjustable threshold voltage set by the user. If the voltage falls below the threshold, indicating a power failure or brownout condition, the device generates a reset signal on the RESET pin. This signal can be used to initiate system shutdown or perform other necessary actions.

The manual reset input (MR) allows the user to manually assert a reset signal, overriding the automatic monitoring function. The watchdog timer ensures that the system remains operational by periodically resetting the device unless the MR pin is activated.

Detailed Application Field Plans

The TPS3851G33EDRBR finds application in various fields, including:

1. Power supply monitoring in embedded systems
2. Battery-powered devices
3. Industrial automation systems
4. Automotive electronics
5. Medical equipment
6. Consumer electronics

Detailed and Complete Alternative Models

1. TPS3839K33DBVR: Similar voltage supervisor with fixed threshold voltage.
2. TPS3808G01DBVR: Ultra-low-power voltage supervisor with adjustable threshold voltage.
3. MAX823LEUK+T: Precision voltage monitor with manual reset input.

These alternative models offer similar functionality and can be considered as substitutes for the TPS3851G33EDRBR in different applications.

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