Overview
The TPS3820-33DBVT, produced by Texas Instruments, is a voltage supervisor IC designed to provide circuit initialization and timing supervision. It is primarily used in DSP and processor-based systems. This component ensures proper system reset by monitoring the supply voltage and asserting the RESET signal when the voltage drops below a specified threshold. The TPS3820-33DBVT features a fixed delay time and a watchdog timer, making it a reliable choice for various applications.
Key Specifications
| Parameter | 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 |
| Watchdog Timer | 200 ms |
| Delay Time | 25 ms |
| Supply Current | 15 µA (typical) |
| Reset Output | Active-low, push-pull |
| Manual Reset Input | Available |
Key Features
- Power-on reset generator with a fixed delay time of 25 ms
- Manual reset input
- Reset output available in active-low, push-pull configuration
- Supply voltage supervision range: 2.5 V, 3 V, 3.3 V, 5 V
- Watchdog timer with a timeout of 200 ms
- Low supply current of 15 µA (typical)
- 5-pin SOT-23 package
- No external components required
Applications
- DSP and processor-based systems
- Microcontrollers and microprocessors
- Industrial equipment
- Programmable controls
Q & A
- What is the primary function of the TPS3820-33DBVT? The primary function is to provide circuit initialization and timing supervision, especially for DSP and processor-based systems.
- What is the operating temperature range of the TPS3820-33DBVT? The operating temperature range is −40°C to 85°C.
- What are the available supply voltage supervision ranges for the TPS3820-33DBVT? The supervision ranges are 2.5 V, 3 V, 3.3 V, and 5 V.
- What is the watchdog timer timeout for the TPS3820-33DBVT? The watchdog timer timeout is 200 ms.
- Does the TPS3820-33DBVT require external components? No, it does not require external components.
- What is the typical supply current of the TPS3820-33DBVT? The typical supply current is 15 µA.
- What type of reset output does the TPS3820-33DBVT provide? It provides an active-low, push-pull reset output.
- Is a manual reset input available on the TPS3820-33DBVT? Yes, a manual reset input is available.
- In what package is the TPS3820-33DBVT available? It is available in a 5-pin SOT-23 package.
- What is the delay time for the power-on reset generator of the TPS3820-33DBVT? The delay time is 25 ms.
