Overview
The TPS3813K33DBVT is a supervisory circuit from Texas Instruments, designed to provide circuit initialization and timing supervision primarily for DSPs and processor-based systems. This component is part of the TPS3813xxx family, which offers essential features for ensuring proper system reset and monitoring supply voltage. During power-on, the RESET is asserted when the supply voltage (VDD) exceeds 1.1V, and it remains active until VDD rises above the threshold voltage (VIT). The device includes an internal timer that delays the return of the output to the inactive state, ensuring a proper system reset.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-23 (DBV) | - |
| Pins | 6 | - |
| Operating Temperature Range | -40 to 85 | °C |
| Supply Voltage (VDD) | 2.5V, 3V, 3.3V, 5V | V |
| Threshold Voltage (VIT) | 2.5V, 3V, 3.3V, 5V | V |
| Power-on Reset Delay Time | 25ms (typical) | ms |
| Supply Current | 9µA (typical) | A |
| Reset Output | Open-drain | - |
Key Features
- Window-watchdog with programmable delay and window ratio
- 6-Pin SOT-23 package
- Supply current of 9µA (typical)
- Power-on reset generator with a fixed delay time of 25ms
- Precision supply voltage monitor (VIT): 2.5V, 3V, 3.3V, and 5V
- Open-drain reset output
- Temperature range: –40°C to 85°C
Applications
- Applications using DSPs, microcontrollers, and microprocessors
- Safety critical systems
- Automotive systems
- Extended temperature performance systems
- Healing systems
Q & A
- What is the primary function of the TPS3813K33DBVT? The primary function is to provide circuit initialization and timing supervision for DSPs and processor-based systems.
- What is the package type of the TPS3813K33DBVT? The package type is 6-pin SOT-23 (DBV).
- What are the supported supply voltages for the TPS3813K33DBVT? The supported supply voltages are 2.5V, 3V, 3.3V, and 5V.
- What is the typical power-on reset delay time? The typical power-on reset delay time is 25ms.
- What is the typical supply current of the TPS3813K33DBVT? The typical supply current is 9µA.
- Does the TPS3813K33DBVT have a window-watchdog feature? Yes, it includes a window-watchdog with programmable delay and window ratio.
- What is the operating temperature range of the TPS3813K33DBVT? The operating temperature range is –40°C to 85°C.
- What type of reset output does the TPS3813K33DBVT have? The reset output is open-drain.
- Are external components required for the TPS3813K33DBVT to function? No, external components are not required.
- In what types of systems is the TPS3813K33DBVT typically used? It is typically used in systems using DSPs, microcontrollers, microprocessors, safety critical systems, and automotive systems.
