Overview
The TPS3824-30DBVRG4, part of the TPS382x family from Texas Instruments, is a voltage monitor with a watchdog timer designed to provide circuit initialization and timing supervision. This device is particularly suited for DSP and processor-based systems, ensuring proper system reset and monitoring supply voltages.
The TPS3824-30DBVRG4 features a power-on reset generator, manual reset input, and watchdog timer, making it versatile for various applications. It operates within a supply voltage range of 2.5 V to 5 V and is available in a compact 5-pin SOT-23 package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.5 V, 3 V, 3.3 V, 5 V | V |
| Power-on Reset Delay Time | 200 ms | ms |
| Watchdog Time Out | 1.6 s | s |
| Manual Reset Input | Active | - |
| Reset Output Type | Active-low, Active-high | - |
| Supply Current | 15 μA (typical) | μA |
| Package Type | 5-pin SOT-23 | - |
| Operating Temperature Range | −40°C to 85°C | °C |
| Input Threshold Voltage (VIT−) | 2.59 V to 2.69 V (for 3 V option) | V |
| High-Level Output Voltage (VOH) | 0.8 × VDD | V |
| Low-Level Output Voltage (VOL) | 0.4 V | V |
Key Features
- Power-on reset generator with a fixed delay time of 200 ms
- Manual reset input (MR) to force a reset signal
- Watchdog timer with time-out options of 1.6 seconds
- Reset output available in active-low and active-high configurations
- Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
- Low supply current of 15 μA (typical)
- Compact 5-pin SOT-23 package
- Operating temperature range: −40°C to 85°C (−40°C to 125°C for TPS3823A-33)
Applications
- DSPs, microcontrollers, or microprocessors
- Industrial equipment
- Programmable controls
- Automotive systems
- Portable and battery-powered equipment
- Intelligent instruments
- Wireless communications systems
- Notebook and desktop computers
Q & A
- What is the primary function of the TPS3824-30DBVRG4?
The primary function is to provide circuit initialization and timing supervision, including power-on reset and watchdog timer capabilities.
- What are the available supply voltage options for the TPS3824-30DBVRG4?
The device can monitor supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V.
- What is the delay time for the power-on reset generator?
The delay time is 200 ms.
- Does the TPS3824-30DBVRG4 have a manual reset feature?
- What types of reset outputs are available?
The device offers both active-low and active-high reset outputs.
- What is the typical supply current of the TPS3824-30DBVRG4?
The typical supply current is 15 μA.
- In what package is the TPS3824-30DBVRG4 available?
The device is available in a 5-pin SOT-23 package.
- What is the operating temperature range of the TPS3824-30DBVRG4?
The operating temperature range is −40°C to 85°C.
- What is the watchdog time-out period for the TPS3824-30DBVRG4?
The watchdog time-out period is 1.6 seconds.
- What are some common applications for the TPS3824-30DBVRG4?
Common applications include DSPs, microcontrollers, industrial equipment, automotive systems, and portable electronics.
