TPS3808G12DRVRG4

Overview

Category: Integrated Circuits (ICs)

Use: Voltage Supervisors

Characteristics: - Low Power Consumption - Wide Supply Voltage Range - Adjustable Threshold Voltage - Precision Monitoring - Small Package Size

Package: SOT-23-6

Essence: The TPS3808G12DRVRG4 is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal to the microcontroller or other devices when the voltage falls below a certain threshold.

Packaging/Quantity: The TPS3808G12DRVRG4 is available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V, 4.63V, 4.88V, 5.13V, 5.38V
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull

Pin Configuration

The TPS3808G12DRVRG4 has a total of six pins arranged as follows:

```

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| | --| VDD | --| GND | --| MR | --| RESET | --| NRESET| |_______| ```

• VDD: Power supply input pin
• GND: Ground pin
• MR: Manual Reset pin (active-low)
• RESET: Reset output pin (active-low)
• NRESET: Complementary reset output pin (active-high)

Functional Features

1. Voltage Monitoring: The TPS3808G12DRVRG4 continuously monitors the supply voltage and asserts the reset signal when it falls below the programmed threshold.
2. Adjustable Threshold Voltage: The IC allows users to select the desired threshold voltage from a range of options, providing flexibility for different applications.
3. Precision Monitoring: The device offers accurate voltage monitoring with low hysteresis, ensuring reliable system operation.
4. Power Efficiency: With a quiescent current of only 1.5µA, the TPS3808G12DRVRG4 minimizes power consumption, making it suitable for battery-powered devices.
5. Small Package Size: The SOT-23-6 package is compact, saving valuable board space in space-constrained designs.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Adjustable threshold voltage provides flexibility for different applications - Low power consumption extends battery life - Precision monitoring ensures reliable system operation - Small package size saves board space

Disadvantages: - Limited number of threshold voltage options may not cover all specific requirements

Working Principles

The TPS3808G12DRVRG4 operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The reset remains active until the supply voltage rises above the threshold and stabilizes.

Detailed Application Field Plans

The TPS3808G12DRVRG4 is commonly used in various electronic systems where reliable voltage monitoring and reset functionality are required. Some application fields include:

1. Microcontrollers: The IC ensures proper system initialization and prevents erratic behavior during power-up or voltage fluctuations.
2. Embedded Systems: It provides a reliable reset signal to microprocessors, DSPs, and other digital devices, ensuring controlled startup and safe operation.
3. Industrial Automation: The voltage supervisor is used in control systems, PLCs, and motor drives to monitor power supply integrity and prevent damage due to voltage fluctuations.
4. Consumer Electronics: It finds applications in smart home devices, IoT devices, and portable electronics, providing a reset signal for stable and safe operation.

Detailed and Complete Alternative Models

1. TPS3808G01: Similar voltage supervisor IC with fixed threshold voltage options.
2. TPS3808G33: Voltage supervisor IC with adjustable threshold voltage and higher supply voltage range.
3. TPS3808G25: Voltage supervisor IC with adjustable threshold voltage and lower supply voltage range.
4. TPS3808G18: Voltage supervisor IC with adjustable threshold voltage and extended operating temperature range.

These alternative models offer similar functionality but may have different specifications or package options to suit specific application requirements.

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