Overview
The TPS3125J18DBVRG4 is a supply voltage supervisor IC produced by Texas Instruments. This component is part of the TPS3125 family, designed to provide voltage monitoring and timing supervision, particularly for DSP and processor-based systems. It is housed in a small 5-pin SOT-23-5 package and operates over a temperature range of -40°C to 85°C. The device is equipped with features such as power-on reset generation, manual reset input, and a watchdog timer, making it suitable for various applications requiring reliable voltage supervision and system reset capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS3125J18DBVRG4 |
| Description | IC 1.62V SUPPLY MONITOR SOT23-5 |
| Package Type | SOT-23-5 (DBV) |
| Pins | 5 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 0.75V to 3.3V |
| Threshold Voltage | 1.62V |
| Reset Output Type | Active High/Active Low, Push-Pull |
| Reset Timeout | 100ms Minimum |
| Supply Current (Typical) | 14 µA |
| Reset Threshold Accuracy | 3.7% |
| Special Features | Manual Reset, Watchdog Timer |
Key Features
- Supply voltage supervision down to 1.2V rails
- Power-on reset generator with a fixed delay time of 180ms
- Manual reset input (MR) to force RESET
- Watchdog timer to monitor timely digital pulses from the processor
- Active High/Active Low and Push-Pull reset output options
- Low supply current of 14µA (typical)
- Small SOT23-5 package
- Operating temperature range of -40°C to 85°C
Applications
The TPS3125J18DBVRG4 is suitable for a variety of applications, including:
- DSP and processor-based systems
- Factory Automation
- Communications Infrastructure
- Video Aggregation - Display Port and HD-SDI interfaces
- Systems requiring reliable voltage supervision and system reset capabilities
Q & A
- What is the primary function of the TPS3125J18DBVRG4? The primary function is to monitor the supply voltage and generate a reset signal if the voltage falls below a specified threshold.
- What is the operating temperature range of the TPS3125J18DBVRG4? The operating temperature range is -40°C to 85°C.
- What types of reset outputs are available? The device offers Active High/Active Low and Push-Pull reset output options.
- Does the TPS3125J18DBVRG4 have a manual reset feature? Yes, it includes a manual reset input (MR) to force the RESET signal.
- What is the typical supply current of the TPS3125J18DBVRG4? The typical supply current is 14µA.
- What is the package type of the TPS3125J18DBVRG4? The package type is SOT-23-5 (DBV).
- Is the TPS3125J18DBVRG4 RoHS compliant? Yes, it is RoHS compliant.
- What is the reset timeout of the TPS3125J18DBVRG4? The reset timeout is a minimum of 100ms.
- Does the TPS3125J18DBVRG4 have a watchdog timer feature? Yes, it includes a watchdog timer to monitor timely digital pulses from the processor.
- What is the minimum supply voltage for the TPS3125J18DBVRG4? The minimum supply voltage is 0.75V.
