Overview
The TPS3824-50DBVT is a voltage supervisor and reset IC produced by Texas Instruments. It is part of the TPS382x family, designed to provide circuit initialization and timing supervision, primarily for DSP and processor-based systems. This device ensures proper system reset by monitoring the supply voltage and asserting a reset signal when the voltage drops below a specified threshold. The TPS3824-50DBVT features both active-low and active-high reset outputs, a watchdog timer, and a manual reset input, making it versatile for various applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | SOT-23 (DBV) | 5 pins |
| Operating Temperature Range | −40°C to 85°C | |
| Supply Voltage Supervision Range | 2.5 V, 3 V, 3.3 V, 5 V | |
| Reset Output | Active-low, Active-high | |
| Watchdog Timer | 1.6 s | |
| Manual Reset Input | Pull low to force a reset | |
| Supply Current | 15 µA (typical) | |
| Power-on Reset Delay Time | 200 ms |
Key Features
- Power-on reset generator with a fixed delay time of 200 ms
- Manual reset input to force a reset
- Reset output available in active-low and active-high configurations
- Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
- Watchdog timer with a timeout option of 1.6 s
- Low supply current of 15 µA (typical)
- Compact 5-pin SOT-23 package
- Operating temperature range: −40°C to 85°C
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 TPS3824-50DBVT?
The primary function of the TPS3824-50DBVT is to provide circuit initialization and timing supervision, ensuring proper system reset by monitoring the supply voltage.
- What are the available reset output configurations for the TPS3824-50DBVT?
The TPS3824-50DBVT offers both active-low and active-high reset output configurations.
- What is the watchdog timer timeout for the TPS3824-50DBVT?
The watchdog timer timeout for the TPS3824-50DBVT is 1.6 seconds.
- How does the manual reset input work on the TPS3824-50DBVT?
The manual reset input can be pulled low to force a reset. The reset remains low as long as the input is low and for the specified timeout period after it goes high.
- What is the typical supply current of the TPS3824-50DBVT?
The typical supply current of the TPS3824-50DBVT is 15 µA.
- What is the operating temperature range of the TPS3824-50DBVT?
The operating temperature range of the TPS3824-50DBVT is −40°C to 85°C.
- What package type is the TPS3824-50DBVT available in?
The TPS3824-50DBVT is available in a 5-pin SOT-23 (DBV) package.
- What are some common applications for the TPS3824-50DBVT?
Common applications include DSPs, microcontrollers, industrial equipment, automotive systems, and portable electronics.
- How does the power-on reset generator work on the TPS3824-50DBVT?
The power-on reset generator asserts a reset when the supply voltage rises above 1.1 V and keeps the reset active low until the voltage exceeds the threshold voltage plus hysteresis, then delays the return to the inactive state by 200 ms.
- Is the TPS3824-50DBVT suitable for use in safety-critical applications?
It is important to consult the datasheet and any relevant application notes to ensure the device meets the requirements for safety-critical applications.
