The TPS3808G01DBVR is a low-power, programmable-delay monitor circuit designed for precise voltage supervision in battery-powered and portable applications. With a typical quiescent current of 2.4 μA and adjustable delay times from 1.25 ms to 10 s, it ensures reliable system resets with minimal power consumption. Its high threshold accuracy and compact SOT-23-6 package make it suitable for space-constrained designs.
How Does the TPS3808G01DBVR Enhance System Reliability?
The TPS3808G01DBVR monitors system voltages ranging from 0.4 V to 5 V, asserting an open-drain RESET signal when the sensed voltage drops below a preset threshold or when the manual reset (MR) pin is activated. The RESET output remains low for a user-adjustable delay time, ensuring that the system has stabilized before normal operation resumes.
Chart: Key Features of TPS3808G01DBVR
| Feature | Description |
|---|---|
| Voltage Monitoring Range | 0.4 V to 5 V |
| Quiescent Current | 2.4 μA typical |
| Delay Time | 1.25 ms to 10 s (programmable) |
| Threshold Accuracy | ±0.5% typical |
| Output Type | Open-drain RESET |
| Package Options | SOT-23-6 |
| Operating Temperature Range | –40°C to 125°C |
What Are the Applications of the TPS3808G01DBVR?
The TPS3808G01DBVR is ideal for applications requiring precise power-up and power-down sequencing, such as:
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DSP or microcontroller systems
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Notebook and desktop computers
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Portable and battery-powered devices
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FPGA and ASIC applications
Its low power consumption and high accuracy make it suitable for systems where energy efficiency and reliability are paramount.
How Does the Programmable Delay Feature Work?
The TPS3808G01DBVR offers a programmable delay time for the RESET signal, which can be set using an external capacitor connected to the CT pin. This delay ensures that the system voltage has stabilized before the device resumes normal operation. The delay time can be adjusted from 1.25 ms to 10 s, providing flexibility for various application requirements.
Chart: Delay Time Configuration
| CT Pin Configuration | Delay Time |
|---|---|
| Disconnected | 20 ms |
| Connected to VDD via resistor | 300 ms |
| Connected to external capacitor | 1.25 ms to 10 s (programmable) |
What Are the Advantages of Using the TPS3808G01DBVR?
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Low Power Consumption: With a typical quiescent current of 2.4 μA, it is suitable for battery-powered applications.
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High Accuracy: Offers ±0.5% threshold accuracy, ensuring precise voltage monitoring.
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Programmable Delay: Provides flexibility in system design with adjustable delay times.
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Compact Package: Available in a small SOT-23-6 package, saving board space.
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Wide Operating Temperature: Operates reliably from –40°C to 125°C.
Buying Tips
When purchasing the TPS3808G01DBVR, consider the following:
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Authorized Distributors: Ensure you buy from reputable sources to guarantee authenticity.
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Stock Availability: Check inventory levels to avoid delays in your project timeline.
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Bulk Purchasing: For large-scale projects, buying in bulk can reduce costs.
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Technical Support: Choose suppliers that offer robust customer support for any technical queries.
Fly-Wing Technology (HK) Co., Limited has been a reliable electronic components source since 2012, assisting customers in finding hard-to-find parts quickly and accurately. They offer competitive prices and have optimized their in-stock inventory and global supplier network to reduce procurement cycles and lower transaction costs. Their warehouses in Hong Kong enable them to purchase components globally, ensuring quality and affordability.
Electronic Components Expert Views
“The TPS3808G01DBVR stands out for its combination of low power consumption and high precision. Its programmable delay feature offers designers the flexibility needed for various applications, making it a go-to choice for voltage supervision in modern electronics.”
FAQ
Q: What is the typical quiescent current of the TPS3808G01DBVR?
A: The typical quiescent current is 2.4 μA, making it suitable for low-power applications.
Q: Can the delay time be adjusted externally?
A: Yes, by connecting an external capacitor to the CT pin, the delay time can be programmed from 1.25 ms to 10 s.
Q: What is the operating temperature range of the TPS3808G01DBVR?
A: It operates reliably within a temperature range of –40°C to 125°C.
Q: What package is the TPS3808G01DBVR available in?
A: It is available in a compact SOT-23-6 package.
Q: Is the TPS3808G01DBVR suitable for battery-powered devices?
A: Yes, its low quiescent current and high accuracy make it ideal for battery-powered applications.
The TPS3808G01DBVR is a low-power, programmable-delay monitor circuit produced by Texas Instruments. It is designed for applications requiring precise voltage monitoring and reliable reset functionality. With its ultra-low power consumption, high accuracy, and flexible delay timing settings, it is suitable for various industrial and consumer applications.
Technical Specifications
- Operating Voltage: 1.7V to 6.5V.
- Power Consumption: Typical quiescent current of 2.4μA.
- Timing Range: 1.25ms to 10s, supporting various timing intervals.
- Package: SOT-23-6.
- Operating Temperature Range: -40°C to +125°C.
- Threshold Voltage: Adjustable from 0.4V to 5V.
- Manual Reset Input: Supports manual reset functionality.
- Reset Output: Open-drain reset output.
Features
- Ultra-Low Power Consumption: Typical quiescent current of 2.4μA, ideal for battery-powered devices.
- High Accuracy: Threshold accuracy of 0.5% ensures precise voltage monitoring.
- Programmable Delay Time: Adjustable delay timing from 1.25ms to 10s.
- Wide Voltage Range: Suitable for system voltages from 0.4V to 5V.
- Manual Reset Function: Provides a manual reset input pin for system debugging and maintenance.
- Open-Drain Reset Output: Flexible reset output design for various circuit designs.
- Small Package: SOT-23-6 package saves board space.
- Wide Operating Temperature Range: Suitable for various environmental conditions.
Applications
The TPS3808G01DBVR is suitable for various applications, including:
- Industrial Automation: Monitoring sensor and actuator voltages to ensure system stability.
- Consumer Electronics: Extending battery life in laptops, PDAs, and handheld devices.
- Power Management: Voltage monitoring and reset functionality in power systems.
- Communication Equipment: Ensuring communication stability in base stations, network equipment, and routers.
- Smart Home and IoT Devices: Suitable for sensors and remote devices requiring low power and precise voltage monitoring.
- Automotive Electronics: Monitoring voltage in automotive electronic systems to ensure reliability.
- Servers and Data Centers: Protecting data security and preventing service interruptions.
Conclusion
The TPS3808G01DBVR is a high-performance, low-power monitor circuit. Its ultra-low power consumption, high accuracy, and flexible delay timing settings make it an excellent choice for various applications. It provides reliable voltage monitoring and reset functionality in industrial automation, consumer electronics, and power management.
