Overview
The TPS3808G01DRVRG4 is a high-precision voltage supervisor designed by Texas Instruments to monitor system voltages and provide a reliable reset signal. This device is essential for ensuring the proper operation of microprocessors, microcontrollers, and other digital systems by preventing data corruption, erratic system behavior, or hardware damage due to undervoltage conditions. It operates over a wide range of supply voltages from 1.8V to 6.5V, making it versatile for various applications, including battery-powered equipment, portable devices, and industrial controls.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Supervisory Circuits |
| Package / Case | 6-WSON (2x2) |
| Type | Voltage Supervisory |
| Number of Voltages Monitored | 1 |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| Reset Timeout | Adjustable/Selectable (1.25 ms to 10 s) |
| Voltage - Threshold | Adjustable/Selectable (down to 0.405 V) |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
| Supply Voltage - Max | 6.5 V |
| Supply Voltage - Min | 1.8 V |
| Quiescent Current | 2.7 μA |
| Manual Reset | Manual Reset Input |
| Watchdog Timers | No Watchdog |
| Battery Backup Switching | No Backup |
Key Features
- Programmable Delay Time: The reset delay time can be adjusted from 1.25 ms to 10 s, allowing customization to match specific system requirements.
- Low Quiescent Current: The device has a very low quiescent current of 2.7 μA, which is beneficial for power-sensitive designs and helps extend battery life.
- High Threshold Accuracy: The device features high threshold accuracy of 0.5% typical, ensuring reliable voltage monitoring.
- Manual Reset Input: Includes a manual reset input, allowing the user or an external signal to initiate a system reset.
- Open-Drain RESET Output: Provides an open-drain RESET output, which can be connected to external pull-up resistors.
- Compact Package: Available in a small 6-pin WSON (2x2) package, ideal for space-constrained applications.
Applications
- DSP or Microcontroller Applications: Suitable for monitoring system voltages in DSP and microcontroller-based systems.
- Notebook and Desktop Computers: Used in computer systems to ensure stable operation during power-on and power-off cycles.
- PDAs and Hand-Held Products: Ideal for portable and battery-powered devices due to its low power consumption.
- FPGA and ASIC Applications: Can be used in field-programmable gate arrays (FPGA) and application-specific integrated circuits (ASIC) to monitor voltage levels.
- Industrial Controls: Suitable for industrial control systems that require reliable voltage monitoring and reset capabilities.
Q & A
- What is the primary function of the TPS3808G01DRVRG4?
The primary function of the TPS3808G01DRVRG4 is to monitor system voltages and provide a reliable reset signal to ensure proper operation of microprocessors, microcontrollers, and other digital systems.
- What is the operating temperature range of the TPS3808G01DRVRG4?
The operating temperature range is -40°C to 125°C (TJ).
- What is the supply voltage range for the TPS3808G01DRVRG4?
The supply voltage range is from 1.8V to 6.5V.
- How can the reset delay time be adjusted?
The reset delay time can be adjusted from 1.25 ms to 10 s using external resistors and capacitors.
- Does the TPS3808G01DRVRG4 have a watchdog timer?
No, the TPS3808G01DRVRG4 does not have a watchdog timer.[
- What is the quiescent current of the TPS3808G01DRVRG4?
The quiescent current is 2.7 μA.[
- What package types are available for the TPS3808G01DRVRG4?
The device is available in a 6-pin WSON (2x2) package.[
- Can the voltage threshold be adjusted?
Yes, the voltage threshold can be adjusted down to 0.405 V.[
- Does the TPS3808G01DRVRG4 support manual reset?
Yes, it includes a manual reset input.[
- What are some common applications of the TPS3808G01DRVRG4?
Common applications include DSP or microcontroller systems, notebook and desktop computers, PDAs, hand-held products, FPGA and ASIC applications, and industrial controls.[
