TPS3780BDBVR

Product Overview

Category

The TPS3780BDBVR belongs to the category of integrated circuits (ICs) and specifically falls under the voltage supervisors or monitors subcategory.

Use

This product is primarily used for monitoring the voltage levels in electronic systems, ensuring that they remain within specified limits. It provides a reliable means of detecting undervoltage and overvoltage conditions, thereby preventing potential damage to sensitive components.

Characteristics

• Voltage monitoring range: The TPS3780BDBVR can monitor voltages ranging from 1.2V to 5.5V.
• Low quiescent current: It consumes minimal power during operation, making it suitable for battery-powered applications.
• Adjustable threshold levels: The device allows users to set the desired voltage thresholds for triggering alerts or system shutdown.
• Reset delay options: It offers adjustable reset delay times to accommodate different system requirements.
• Small package size: The TPS3780BDBVR comes in a small SOT-23 package, enabling space-efficient integration into various electronic designs.

Package and Quantity

The TPS3780BDBVR is packaged in a SOT-23-6 package. Each package contains one unit of the IC.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Operating temperature range: -40°C to +85°C
• Quiescent current: 4µA (typical)
• Threshold accuracy: ±1.5%
• Reset delay time range: 100ms to 10s

Pin Configuration

The TPS3780BDBVR features a six-pin SOT-23 package with the following pin configuration:

```

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| | | 1 2 | | | | 3 4 | | | | 5 6 | |___________| ```

1. GND: Ground connection
2. VDD: Supply voltage input
3. MR: Manual reset input (active-low)
4. RESET: Reset output
5. TH: Threshold voltage setting pin
6. NC: No connection

Functional Features

• Voltage monitoring: The TPS3780BDBVR continuously monitors the input voltage and compares it to the user-defined threshold levels.
• Reset signal generation: When an undervoltage or overvoltage condition is detected, the device generates a reset signal to initiate system recovery or shutdown.
• Manual reset capability: The MR pin allows for manual reset control, enabling users to override the automatic reset function.
• Adjustable threshold levels: The TH pin provides a means of setting the desired voltage thresholds, allowing customization based on specific application requirements.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various electronic systems.
• Low quiescent current consumption prolongs battery life in portable devices.
• Adjustable threshold levels offer flexibility in voltage monitoring.
• Small package size facilitates space-efficient integration into compact designs.

Disadvantages

• Limited number of pins may restrict additional functionality in complex systems.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3780BDBVR operates by comparing the input voltage with the user-defined threshold levels set through the TH pin. If the voltage falls below or exceeds the specified thresholds, the device generates a reset signal on the RESET pin. This signal can be used to trigger system recovery or initiate a shutdown sequence, depending on the application requirements.

Detailed Application Field Plans

The TPS3780BDBVR finds applications in various fields where voltage monitoring is critical. Some examples include:

1. Power supply units: The IC can be used to monitor the input voltage of power supplies, ensuring stable and safe operation.
2. Battery-powered devices: It is suitable for portable electronic devices that rely on batteries, preventing damage due to undervoltage conditions.
3. Industrial control systems: The TPS3780BDBVR can be integrated into control systems to monitor voltage levels and trigger appropriate actions in case of deviations.
4. Automotive electronics: It finds use in automotive applications to monitor battery voltage and protect sensitive components from potential damage.

Detailed and Complete Alternative Models

• TPS3700: This voltage supervisor IC offers similar functionality with adjustable threshold levels and a small package size.
• MAX823: Another alternative, this IC provides voltage monitoring capabilities along with built-in hysteresis for improved stability near threshold voltages.
• ADM1175: This model offers advanced features such as overvoltage protection and fault detection in addition to voltage monitoring.

These alternative models provide options for users based on specific requirements and additional functionalities needed in their applications.

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