Overview
The TPS3823-50QDBVRQ1 is a supervisory circuit manufactured by Texas Instruments, designed primarily for circuit initialization and timing supervision in DSP and processor-based systems. This device is part of the TPS382x-xx-Q1 family and is qualified for automotive applications, adhering to AEC-Q100 standards. It operates over a wide temperature range of -40°C to 125°C and is packaged in a 5-pin SOT-23 (DBV) package.
The TPS3823-50QDBVRQ1 features a power-on reset generator, manual reset input, and a watchdog timer, making it suitable for monitoring supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The device ensures proper system reset by delaying the return of the output to the inactive state after the supply voltage rises above the threshold voltage.
Key Specifications
| Parameter | Description |
|---|---|
| Package | SOT-23 (DBV), 5 pins |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Supervision Range | 2.5 V, 3 V, 3.3 V, 5 V |
| Power-on Reset Delay Time | 200 ms (TPS3823/4/5/8-xx-Q1), 25 ms (TPS3820-xx-Q1) |
| Watchdog Timer | 1.6 s (TPS3823/4/8-xx-Q1) |
| Manual Reset Input | Available (TPS3820/3/5/8-xx-Q1) |
| Reset Output | Active-low, active-high, or open-drain |
| Supply Current | 15 µA (Typical) |
| ESD Protection | Exceeds 2000 V per MIL-STD-883, Method 3015 |
| Compliance | AEC-Q100 Qualified, RoHS Compliant |
Key Features
- Qualified for automotive applications with AEC-Q100 certification.
- Power-on reset generator with fixed delay times (200 ms or 25 ms).
- Manual reset input for forcing a reset.
- Watchdog timer with options of 200 ms or 1.6 s.
- Supply voltage supervision for 2.5 V, 3 V, 3.3 V, and 5 V.
- Reset output available in active-low, active-high, or open-drain configurations.
- Low supply current of 15 µA (Typical).
- ESD protection exceeding 2000 V per MIL-STD-883, Method 3015.
- Compact 5-pin SOT-23 package.
Applications
The TPS3823-50QDBVRQ1 is designed for use in various applications, particularly in systems that require robust voltage supervision and reset functionality. These include:
- Automotive systems: Given its AEC-Q100 qualification, it is suitable for use in automotive electronics.
- DSP and processor-based systems: It provides circuit initialization and timing supervision, ensuring proper system reset.
- Microcontroller systems: It can monitor the supply rail and issue resets when the voltage drops below the threshold.
- Industrial control systems: Where reliable voltage monitoring and reset capabilities are crucial.
Q & A
- What is the operating temperature range of the TPS3823-50QDBVRQ1?
The operating temperature range is -40°C to 125°C.
- What are the available supply voltage supervision ranges for this device?
The device can supervise supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V.
- What types of reset outputs are available for the TPS3823-50QDBVRQ1?
The reset output is available in active-low, active-high, or open-drain configurations.
- Does the TPS3823-50QDBVRQ1 have a watchdog timer?
- What is the typical supply current of the TPS3823-50QDBVRQ1?
The typical supply current is 15 µA.
- Is the TPS3823-50QDBVRQ1 RoHS compliant?
- What is the package type and pin count of the TPS3823-50QDBVRQ1?
- Does the TPS3823-50QDBVRQ1 require external components for operation?
- What is the ESD protection level of the TPS3823-50QDBVRQ1?
- Is the TPS3823-50QDBVRQ1 suitable for automotive applications?
