TPS3705-50D

Product Overview

Category

The TPS3705-50D belongs to the category of integrated circuits (ICs) specifically designed for voltage monitoring and supervision applications.

Use

This product is primarily used for monitoring and supervising voltage levels in various electronic systems. It ensures reliable operation by providing accurate voltage monitoring and triggering appropriate actions based on predefined thresholds.

Characteristics

• Voltage monitoring and supervision IC
• Accurate voltage threshold detection
• Low power consumption
• Wide operating voltage range
• Small form factor
• Robust design for harsh environments

Package

The TPS3705-50D is available in a small surface-mount package, making it suitable for compact electronic devices. The package type is DSBGA (Die-Size Ball Grid Array), which offers excellent thermal performance and ease of integration.

Essence

The essence of the TPS3705-50D lies in its ability to monitor voltage levels and provide reliable protection against voltage fluctuations or failures. It ensures the stability and integrity of electronic systems by promptly detecting abnormal voltage conditions.

Packaging/Quantity

The TPS3705-50D is typically supplied in tape and reel packaging, allowing for efficient automated assembly processes. The exact quantity per reel may vary depending on the manufacturer's specifications.

Specifications

• Supply Voltage Range: 2.7V to 18V
• Threshold Accuracy: ±1.5%
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 10µA (typical)
• Output Type: Active-Low/Open-Drain
• Response Time: <10µs

Detailed Pin Configuration

The TPS3705-50D features a standard pin configuration with the following pin assignments:

1. GND (Ground)
2. VDD (Supply Voltage)
3. VIN (Voltage Input)
4. VIT (Threshold Voltage Input)
5. RESET (Active-Low/Open-Drain Output)

Functional Features

1. Accurate Voltage Monitoring: The TPS3705-50D precisely detects voltage levels and compares them against user-defined thresholds.
2. Threshold Configuration: The threshold voltage can be set externally using the VIT pin, allowing flexibility in defining the desired voltage limits.
3. Reset Output: When a voltage breach occurs, the RESET pin is activated, signaling the need for corrective action or system shutdown.
4. Low Power Consumption: The IC operates with minimal power consumption, making it suitable for battery-powered applications.
5. Fast Response Time: The TPS3705-50D quickly responds to voltage changes, ensuring timely protection of electronic systems.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring
• Wide operating voltage range
• Compact form factor for space-constrained designs
• Robust design suitable for harsh environments
• Low power consumption for energy-efficient applications

Disadvantages

• Limited threshold accuracy compared to some specialized voltage monitoring ICs
• Lack of built-in hysteresis adjustment feature

Working Principles

The TPS3705-50D operates based on a voltage comparator principle. It continuously monitors the input voltage and compares it against the predefined threshold voltage. If the input voltage exceeds or falls below the threshold, the RESET pin is activated, indicating a voltage breach. This signal can be used to trigger appropriate actions, such as system shutdown or fault notification.

Detailed Application Field Plans

The TPS3705-50D finds application in various fields where voltage monitoring and supervision are critical. Some potential application areas include:

1. Power Supply Units: Ensuring stable voltage output and protecting against overvoltage or undervoltage conditions.
2. Industrial Control Systems: Monitoring voltage levels in control panels and triggering alarms or shutdowns in case of voltage anomalies.
3. Automotive Electronics: Safeguarding sensitive electronic components from voltage fluctuations in vehicles.
4. Battery Management Systems: Monitoring battery voltage to prevent overcharging or deep discharge, enhancing battery lifespan.

Detailed and Complete Alternative Models

1. TPS3705-33D: Similar to TPS3705-50D but with a different threshold voltage (3.3V).
2. TPS3705-25D: Similar to TPS3705-50D but with a different threshold voltage (2.5V).
3. TPS3705-12D: Similar to TPS3705-50D but with a different threshold voltage (1.2V).
4. TPS3705-ADJ: Adjustable threshold voltage version, allowing customization of the threshold level.

These alternative models provide flexibility in choosing the appropriate voltage monitoring IC based on specific application requirements.

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