Overview
The TPS3825-33DBVR is a voltage supervisor (reset IC) manufactured 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 during power-on and monitors the supply voltage to maintain system integrity.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 5-pin SOT-23 (DBV) |
| 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, Open drain |
| Power-on Reset Delay Time | 200 ms (TPS3825), 25 ms (TPS3820) |
| Manual Reset Input | Yes |
| Watchdog Timer | Yes (200 ms or 1.6 s options) |
| Supply Current | 15 µA (typical) |
| Ground Connection | PIN 2 |
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, active-high, and open-drain configurations
- Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
- Watchdog timer with options for 200 ms or 1.6 s time-out periods
- 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 TPS3825-33DBVR?
The primary function is to provide circuit initialization and timing supervision, ensuring proper system reset during power-on and monitoring the supply voltage. - What are the available reset output configurations for the TPS3825?
The reset output is available in active-low, active-high, and open-drain configurations. - What is the typical supply current of the TPS3825?
The typical supply current is 15 µA. - What is the operating temperature range of the TPS3825?
The operating temperature range is −40°C to 85°C. - Does the TPS3825 have a watchdog timer?
Yes, the TPS3825 includes a watchdog timer with options for 200 ms or 1.6 s time-out periods. - What package type is the TPS3825 available in?
The TPS3825 is available in a 5-pin SOT-23 (DBV) package. - Can the TPS3825 be used in automotive systems?
Yes, the TPS3825 can be used in automotive systems. - What is the power-on reset delay time for the TPS3825?
The power-on reset delay time for the TPS3825 is 200 ms. - Is manual reset input available on the TPS3825?
Yes, the TPS3825 has a manual reset input. - What are the supported supply voltage supervision ranges for the TPS3825?
The supported supply voltage supervision ranges are 2.5 V, 3 V, 3.3 V, and 5 V.
