TPS3851G25SQDRBRQ1 - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The TPS3851G25SQDRBRQ1 is a voltage supervisor and reset IC designed for monitoring the power supply voltage of electronic systems. It ensures proper system operation by generating a reset signal when the voltage falls below a specified threshold.

Characteristics: - Low-power consumption - Wide operating voltage range - Adjustable reset threshold - Programmable delay time - High accuracy - Small form factor

Package: The TPS3851G25SQDRBRQ1 is available in a small 10-pin VSON package, which offers space-saving benefits and ease of integration into various applications.

Essence: The essence of the TPS3851G25SQDRBRQ1 lies in its ability to provide reliable voltage monitoring and reset functionality, ensuring the stability and integrity of electronic systems.

Packaging/Quantity: The TPS3851G25SQDRBRQ1 is typically sold in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Reset Threshold Voltage Range: 1.2V to 5.5V
• Reset Timeout Period: Adjustable from 1ms to 10s
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 3µA (typical)
• Power-On Reset Delay: 20ms (typical)

Detailed Pin Configuration

The TPS3851G25SQDRBRQ1 features the following pin configuration:

1. GND (Ground)
2. MR (Manual Reset)
3. RESET (Reset Output)
4. VDD (Supply Voltage)
5. VDD (Supply Voltage)
6. GND (Ground)
7. GND (Ground)
8. GND (Ground)
9. GND (Ground)
10. GND (Ground)

Functional Features

• Voltage Monitoring: The TPS3851G25SQDRBRQ1 continuously monitors the supply voltage and generates a reset signal when it falls below the user-defined threshold.
• Adjustable Threshold: The reset threshold voltage can be programmed to suit specific system requirements, allowing flexibility in voltage monitoring.
• Programmable Delay: The IC offers an adjustable delay time for generating the reset signal after the voltage drops below the threshold, ensuring stability during power fluctuations.
• Manual Reset: The MR pin allows for manual reset functionality, enabling system control over the reset operation.
• Low Power Consumption: With a quiescent current of only 3µA, the TPS3851G25SQDRBRQ1 minimizes power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - High accuracy in voltage monitoring - Wide operating voltage range - Small form factor for space-constrained designs - Adjustable reset threshold and delay time - Low power consumption

Disadvantages: - Limited availability of alternative models with similar features - May require additional external components for certain applications

Working Principles

The TPS3851G25SQDRBRQ1 operates by comparing the supply voltage against the user-programmed threshold voltage. When the supply voltage drops below this threshold, the IC triggers a reset signal, which can be used to initiate system recovery or perform other necessary actions. The programmable delay ensures that the reset signal is generated after a specified period, allowing for stable operation during transient voltage dips.

Detailed Application Field Plans

The TPS3851G25SQDRBRQ1 finds applications in various electronic systems that require reliable voltage monitoring and reset functionality. Some potential application fields include: - Automotive electronics - Industrial control systems - Power management units - Battery-powered devices - Home automation systems

Detailed and Complete Alternative Models

While the TPS3851G25SQDRBRQ1 offers unique features, there are alternative models available from different manufacturers that provide similar functionality. Some notable alternatives include: - MAX823/MAX824 series from Maxim Integrated - ADM6315/ADM6316 series from Analog Devices - MCP102 series from Microchip Technology

These alternative models can be considered based on specific system requirements and availability.

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