Overview
The TPS3125L30DBVRG4 is an ultra-low voltage processor supervisory circuit produced by Texas Instruments. This IC is designed to monitor and manage the supply voltage in various electronic systems, ensuring proper operation and reset functions when the voltage falls below a specified threshold. It is particularly useful in applications requiring low power consumption and reliable voltage supervision.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage Range | 0.75 | - | 3.3 | V |
| Supply Voltage Supervision Range | 1.2, 1.5, 1.8, 3 (TPS3125 only) | - | - | V |
| Watchdog Time Out | 0.8 | 1.4 | 2.1 | s |
| Delay Time (td) | 100 | 180 | 260 | ms |
| Propagation Delay Time (tPHL, tPLH) | 0.1 | - | 10 | μs |
| Supply Current | - | 14 | - | μA |
| Operating Temperature Range | -40 | - | 85 | °C |
| Package Type | - | - | SOT-23-5 | - |
Key Features
- Minimum supply voltage of 0.75V, with supervision ranges of 1.2V, 1.5V, 1.8V, and 3V (TPS3125 devices only)
- Power-On Reset Generator with a fixed delay time of 180 ms
- Manual Reset Input (MR) pin available
- Watchdog Timer that retriggers the RESET output when VDD is above the threshold voltage
- Low supply current of 14 μA (typical)
- Small SOT23-5 package
- Temperature range of -40°C to +85°C
- Reset output available in push-pull (active-low and active-high) and open-drain (active-low) configurations
Applications
- Low voltage DSPs, microcontrollers, or microprocessors
- Portable and battery-powered equipment
- Wireless communication systems
- Programmable controls
- Industrial equipment
- Notebook and desktop computers
- Intelligent instruments
Q & A
- What is the minimum supply voltage for the TPS3125L30DBVRG4? The minimum supply voltage is 0.75V.
- What are the supply voltage supervision ranges for the TPS3125? The supervision ranges are 1.2V, 1.5V, 1.8V, and 3V (TPS3125 devices only).
- Does the TPS3125L30DBVRG4 have a watchdog timer? Yes, it includes a watchdog timer that retriggers the RESET output when VDD is above the threshold voltage.
- What is the typical supply current of the TPS3125L30DBVRG4? The typical supply current is 14 μA.
- What is the operating temperature range of the TPS3125L30DBVRG4? The operating temperature range is -40°C to +85°C.
- What types of reset outputs are available for the TPS3125L30DBVRG4? The reset output is available in push-pull (active-low and active-high) and open-drain (active-low) configurations.
- What is the package type of the TPS3125L30DBVRG4? The package type is SOT-23-5.
- Does the TPS3125L30DBVRG4 have a manual reset input? Yes, it includes a manual reset input (MR) pin.
- What is the fixed delay time for the power-on reset generator? The fixed delay time is 180 ms.
- In what types of applications is the TPS3125L30DBVRG4 commonly used? It is commonly used in low voltage DSPs, microcontrollers, portable and battery-powered equipment, wireless communication systems, and more.
