TPS3780ADRYR

Product Overview

Category

The TPS3780ADRYR belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and supervising voltage levels in electronic systems. It ensures that the voltage remains within specified limits, providing protection against overvoltage or undervoltage conditions.

Characteristics

• Voltage supervision range: The TPS3780ADRYR can monitor voltages in the range of 0.4V to 5.5V.
• Low quiescent current: It has a low power consumption of only 1.6µA, making it suitable for battery-powered applications.
• Adjustable threshold voltage: The device allows users to set the desired voltage threshold using external resistors.
• Power-on reset delay: It provides a programmable delay time to ensure stable operation during power-up.

Package

The TPS3780ADRYR is available in a small outline package (SOT-23-6), which is compact and easy to integrate into various electronic systems.

Essence

The essence of the TPS3780ADRYR lies in its ability to accurately monitor voltage levels and provide reliable protection against voltage deviations, ensuring the proper functioning of electronic devices.

Packaging/Quantity

This product is typically supplied in reels, with each reel containing 3000 units of the TPS3780ADRYR IC.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Operating temperature range: -40°C to +85°C
• Threshold voltage accuracy: ±1.5%
• Power-on reset delay time: Programmable from 1ms to 10s
• Quiescent current: 1.6µA (typical)

Detailed Pin Configuration

The TPS3780ADRYR has a total of six pins, which are as follows:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. RESET: Active-low reset output
4. MR: Manual reset input
5. TH: Threshold voltage adjustment pin
6. N/C: No connection (unused pin)

Functional Features

• Voltage monitoring: The TPS3780ADRYR continuously monitors the voltage level and generates a reset signal when it falls below or exceeds the programmed threshold.
• Power-on reset: It provides a stable reset signal during power-up, ensuring proper initialization of the system.
• Manual reset: The device can be manually reset by asserting a low-level signal on the MR pin.
• Adjustable threshold: Users can set the desired voltage threshold using external resistors connected to the TH pin.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various electronic systems.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered applications.
• Programmable power-on reset delay ensures stability during system startup.
• Compact package enables easy integration into space-constrained designs.

Disadvantages

• Limited number of pins may restrict the functionality in complex systems requiring more I/O connections.
• Threshold voltage accuracy may have slight variations, affecting precision in critical applications.

Working Principles

The TPS3780ADRYR operates based on a voltage comparator circuit. It compares the monitored voltage with the programmed threshold voltage. If the voltage deviates beyond the set limits, the device triggers a reset signal, indicating an abnormal condition. The power-on reset delay feature ensures that the reset signal is generated only after a specified delay time during system startup, preventing false alarms.

Detailed Application Field Plans

The TPS3780ADRYR finds applications in various fields, including but not limited to:

1. Battery-powered devices: It ensures proper voltage monitoring and protection in portable electronic devices, such as smartphones, tablets, and wearable gadgets.
2. Industrial automation: The IC can be used in control systems to monitor power supply voltages, preventing damage to sensitive equipment.
3. Automotive electronics: It provides voltage supervision in automotive applications, safeguarding critical components from voltage fluctuations.
4. Home appliances: The TPS3780ADRYR can be integrated into household appliances to protect them from voltage variations, enhancing their reliability.

Detailed and Complete Alternative Models

• TPS3700DDCR: This IC offers similar voltage supervision capabilities with a different pin configuration and package (SOT-23-5).
• MAX823LEUK+: A voltage supervisor IC from Maxim Integrated, providing comparable features and performance.
• ADM708TARZ: Analog Devices' voltage monitoring IC with adjustable threshold voltage and power-on reset delay.

These alternative models offer similar functionality and can be considered based on specific design requirements and availability.

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