Overview
The TPS3828-33QDBVRQ1 is a voltage monitor with a watchdog timer designed by Texas Instruments. This component is part of the TPS382x-xx-Q1 family, which provides circuit initialization and timing supervision, primarily for DSP and processor-based systems. It is qualified for automotive applications and meets the AEC-Q100 standards, ensuring reliability in harsh environments. The device monitors the supply voltage and asserts a reset signal if the voltage drops below a predefined threshold, ensuring proper system reset and initialization.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23 (DBV), 5-pin |
| Supply Voltage Supervision Range | 2.5 V, 3 V, 3.3 V, 5 V |
| Temperature Range | –40°C to 125°C |
| ESD Protection | Exceeds 2000 V per MIL-STD-883, Method 3015 |
| Device HBM ESD Classification | Level 2 |
| Device CDM ESD Classification | Level C4B |
| Reset Output Type | Open-drain |
| Watchdog Timer Timeout | 200 ms or 1.6 s (depending on the specific device) |
| Manual Reset Input | Available |
| Power-on Reset Generator Delay Time | 200 ms |
Key Features
- Qualified for automotive applications and AEC-Q100 certified.
- Supply voltage supervision with fixed-sense threshold voltage set by an internal voltage divider.
- Power-on reset generator with a fixed delay time of 200 ms.
- Manual reset input to force a reset.
- Open-drain reset output.
- Watchdog timer with options for 200 ms or 1.6 s timeout.
- No external components required for operation.
- ESD protection exceeding 2000 V per MIL-STD-883, Method 3015.
Applications
- Automotive systems, including DSPs, microcontrollers, and microprocessors.
- Industrial equipment and programmable controls.
- Portable and battery-powered equipment.
- Intelligent instruments and wireless communications systems.
Q & A
- What is the primary function of the TPS3828-33QDBVRQ1? The primary function is to provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.
- What are the supply voltage supervision ranges for this device? The supply voltage supervision ranges are 2.5 V, 3 V, 3.3 V, and 5 V.
- What is the temperature range for the TPS3828-33QDBVRQ1? The temperature range is –40°C to 125°C.
- Does the TPS3828-33QDBVRQ1 have ESD protection? Yes, it exceeds 2000 V per MIL-STD-883, Method 3015.
- What type of reset output does the TPS3828-33QDBVRQ1 have? The reset output is open-drain.
- Is a manual reset input available on this device? Yes, a manual reset input is available.
- What are the watchdog timer timeout options for this device? The watchdog timer timeout options are 200 ms or 1.6 s.
- Is the TPS3828-33QDBVRQ1 qualified for automotive applications? Yes, it is qualified for automotive applications and AEC-Q100 certified.
- What package type does the TPS3828-33QDBVRQ1 come in? It comes in a SOT-23 (DBV) package with 5 pins.
- Are external components required for the operation of this device? No, external components are not required.
