Overview
The TPS3125L30DBVR is a part of the TPS312x family of voltage supervisory circuits produced by Texas Instruments. These circuits are designed to provide voltage monitoring and timing supervision, primarily for DSP and processor-based systems. The TPS3125L30DBVR monitors the power rail and asserts a RESET output when the power rail falls below the threshold voltage, ensuring system stability and preventing malfunctions. The device operates with a minimum supply voltage of 0.75V and supports supply voltage supervision ranges of 1.2V, 1.5V, 1.8V, and 3V for the TPS3125 devices specifically.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Minimum Supply Voltage | 0.75 | V |
| Supply Voltage Supervision Range | 1.2V, 1.5V, 1.8V, 3V (TPS3125 only) | V |
| Power-on Reset Generator Delay Time | 180ms (typical) | ms |
| Supply Current | 14μA (typical) | μA |
| Package Type | SOT23-5 | - |
| Operating Temperature Range | -40°C to +85°C | °C |
| Reset Output Type | Push-Pull (Active-Low and High), Open-Drain (Active-Low) | - |
Key Features
- Minimum supply voltage of 0.75V
- Supply voltage supervision range: 1.2V, 1.5V, 1.8V, and 3V for TPS3125 devices
- Power-on reset generator with a fixed delay time of 180ms
- Manual reset input (MR) for TPS3123/5/6/8 devices
- Watchdog timer to retrigger the RESET output at VDD ≥ VIT
- Low supply current of 14μA (typical)
- Compact SOT23-5 package
- Operating temperature range of –40°C to +85°C
- Reset output available in Push-Pull (Active-Low and High) and Open-Drain (Active-Low) configurations
Applications
- Portable and battery-powered equipment
- Wireless communication systems
- Factory automation
- Servers
- Building automation
Q & A
- What is the minimum supply voltage for the TPS3125L30DBVR?
The minimum supply voltage is 0.75V.
- What are the supply voltage supervision ranges for the TPS3125L30DBVR?
The supply voltage supervision ranges are 1.2V, 1.5V, 1.8V, and 3V for TPS3125 devices.
- What is the power-on reset generator delay time for the TPS3125L30DBVR?
The power-on reset generator delay time is 180ms (typical).
- Does the TPS3125L30DBVR have a manual reset input?
- What is the typical supply current of the TPS3125L30DBVR?
The typical supply current is 14μA.
- In what package is the TPS3125L30DBVR available?
The TPS3125L30DBVR is available in a SOT23-5 package.
- What is the operating temperature range of the TPS3125L30DBVR?
The operating temperature range is –40°C to +85°C.
- What types of reset outputs are available for the TPS3125L30DBVR?
The reset output is available in Push-Pull (Active-Low and High) and Open-Drain (Active-Low) configurations.
- What is the purpose of the watchdog timer in the TPS3125L30DBVR?
The watchdog timer retriggers the RESET output at VDD ≥ VIT to monitor timely digital pulses from the processor and issue an alert if the expected pulse does not arrive on time.
- In which applications is the TPS3125L30DBVR commonly used?
The TPS3125L30DBVR is commonly used in portable and battery-powered equipment, wireless communication systems, factory automation, servers, and building automation.
