Overview
The TPS3106K33DBVR is a dual-channel voltage supervisor and reset IC designed by Texas Instruments. This component is part of the TPS310x and TPS311x families of supervisory circuits, which provide circuit initialization and timing supervision primarily for DSP and processor-based systems. The device monitors the supply voltage and initiates a reset signal if the voltage drops below a specified threshold, ensuring reliable operation of the system.
The TPS3106K33DBVR is characterized by its ultra-low supply current, high trip-point accuracy, and a power-on reset generator with a delay time of 130 ms. It features an active-low, open-drain RESET output and a manual reset pin that can force the outputs low regardless of the sensed voltages.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of supplies monitored | 2 | Threshold voltage 1 (typ) (V) | 0.9, 1.6, 3.3 |
| Features | Manual reset capable, Separate VDD & sense, Undervoltage monitor only | Reset threshold accuracy (%) | 0.75% |
| Iq (typ) (mA) | 0.0012 | Output driver type/reset output | Active-low, Open-drain |
| Time delay (ms) | 130 | Supply voltage (min) (V) | 0.9 |
| Supply voltage (max) (V) | 3.6 | Rating | Catalog |
| Package | SOT-23 (DBV) | Pins | 6 |
| Operating temperature range (°C) | -40 to 125 | Watchdog timer WDI (s) | None |
Key Features
- Precision Supply Voltage Supervision Range: 0.9 V, 1.2 V, 1.5 V, 1.6 V, 2 V, and 3.3 V
- High Trip-Point Accuracy: 0.75%
- Low Supply Current: 1.2 µA (Typical)
- RESET Defined With Input Voltages as Low as 0.4 V: Ensures proper system reset even at low voltages
- Power-On Reset Generator With a Delay Time of 130 ms: Provides a stable reset signal during power-on
- Push/Pull or Open-Drain RESET Outputs: Flexible output configurations
- Manual Reset Pin: Allows forcing the outputs low regardless of the sensed voltages
- Compact SOT-23 Package: Saves board space and facilitates easy integration
- Suitable for Battery-Powered Devices: Low current consumption makes it ideal for battery-powered applications
Applications
- Applications Using Low-Power DSPs, Microcontrollers, or Microprocessors: Ideal for systems requiring precise voltage supervision
- Portable and Battery-Powered Equipment: Low power consumption and compact design make it suitable for portable devices
- Intelligent Instruments: Ensures reliable operation in sophisticated measurement and control systems
- Wireless Communication Systems: Monitors system voltage levels to ensure stable communication
- Industrial Equipment: Used in industrial control systems for reliable power management
- Notebook and Desktop Computers: Provides voltage supervision in computing systems
Q & A
- What is the primary function of the TPS3106K33DBVR?
The primary function is to monitor the supply voltage and initiate a reset signal if the voltage drops below a specified threshold.
- What is the typical supply current of the TPS3106K33DBVR?
The typical supply current is 1.2 µA.
- What is the power-on reset delay time of the TPS3106K33DBVR?
The power-on reset delay time is 130 ms.
- What type of output does the TPS3106K33DBVR have?
The TPS3106K33DBVR has an active-low, open-drain RESET output.
- What is the operating temperature range of the TPS3106K33DBVR?
The operating temperature range is -40°C to 125°C.
- What package type is the TPS3106K33DBVR available in?
The TPS3106K33DBVR is available in a 6-pin SOT-23 (DBV) package.
- Can the TPS3106K33DBVR be used in battery-powered devices?
Yes, it is suitable for battery-powered devices due to its low current consumption.
- Does the TPS3106K33DBVR have a manual reset feature?
Yes, it has a manual reset pin that can force the outputs low regardless of the sensed voltages.
- What are some common applications of the TPS3106K33DBVR?
Common applications include low-power DSPs, microcontrollers, portable and battery-powered equipment, intelligent instruments, wireless communication systems, and industrial equipment.
- What is the threshold voltage accuracy of the TPS3106K33DBVR?
The threshold voltage accuracy is 0.75%.
