TPS3780DDBVR

Product Overview

Category

The TPS3780DDBVR 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 supervisors are designed to operate in a wide range of input voltages, typically from 1.8V to 5.5V.
• The TPS3780DDBVR offers a low quiescent current, making it suitable for battery-powered applications.
• It provides accurate voltage monitoring with a high threshold accuracy.
• This device has a small package size, enabling space-efficient designs.

Package

The TPS3780DDBVR is available in a SOT-23-6 package. This package type is compact and surface-mountable, allowing for easy integration into various circuit boards.

Essence

The essence of the TPS3780DDBVR lies in its ability to monitor voltage levels and ensure system stability by triggering appropriate actions when voltage thresholds are exceeded.

Packaging/Quantity

The TPS3780DDBVR is typically sold in reels containing 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Threshold Accuracy: ±1%
• Quiescent Current: 2µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low/Open Drain

Detailed Pin Configuration

The TPS3780DDBVR features a six-pin configuration:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. RESET: Reset output signal
4. MR: Manual reset input
5. TH: Threshold voltage input
6. NC: No connection

Functional Features

• Voltage Monitoring: The TPS3780DDBVR continuously monitors the input voltage and compares it to the threshold voltage set by the user.
• Reset Output: When the monitored voltage falls below the threshold, the RESET pin is pulled low, indicating a reset condition.
• Manual Reset: The MR pin allows for manual resetting of the device, overriding the automatic reset function.
• Hysteresis: The device incorporates hysteresis to prevent oscillations near the threshold voltage, ensuring stable operation.

Advantages and Disadvantages

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Low quiescent current minimizes power consumption, making it suitable for battery-powered applications.
• Accurate threshold voltage monitoring ensures reliable system protection.
• Small package size allows for space-efficient designs.

Disadvantages

• Limited number of pins may restrict the device's functionality in complex systems.
• Lack of built-in delay timer for reset signals may require additional circuitry in certain applications.

Working Principles

The TPS3780DDBVR operates based on a voltage comparator principle. It compares the input voltage with the threshold voltage set by the user. If the input voltage falls below the threshold, the reset output is activated, indicating a reset condition. The device continuously monitors the voltage, providing real-time protection against overvoltage or undervoltage events.

Detailed Application Field Plans

The TPS3780DDBVR finds application in various fields, including:

1. Power Supply Units (PSUs): It ensures stable voltage levels in PSUs, protecting sensitive components from voltage fluctuations.
2. Battery-Powered Devices: The low quiescent current and wide supply voltage range make it suitable for battery-powered devices, such as portable electronics and IoT devices.
3. Industrial Automation: The TPS3780DDBVR provides voltage monitoring in industrial automation systems, preventing damage to equipment due to voltage variations.
4. Automotive Electronics: It is used in automotive applications to monitor and protect critical electronic systems from voltage anomalies.

Detailed and Complete Alternative Models

1. TPS3700DDCR: This voltage supervisor offers similar functionality but comes in a different package (SOT-23-5) with a slightly lower quiescent current.
2. MAX823LEUK+: This IC provides voltage monitoring capabilities with an adjustable threshold voltage and comes in a SOT-23-3 package.
3. ADM708TARZ: This device features a watchdog timer in addition to voltage monitoring and comes in a SOT-23-6 package.

(Note: These alternative models are provided for reference and may have different specifications and characteristics. It is recommended to refer to the respective datasheets for detailed information.)

In conclusion, the TPS3780DDBVR is a voltage supervisor IC that ensures stable voltage levels in electronic systems. With its compact package size, low quiescent current, and accurate threshold monitoring, it