Overview
The TPS3820-33QDBVRQ1 is a voltage monitor with a watchdog timer produced by Texas Instruments. This component is part of the TPS382x-xx-Q1 family, designed to provide circuit initialization and timing supervision primarily for DSP and processor-based systems. It is qualified for automotive applications and complies with AEC-Q100 stress test qualification for integrated circuits. The device operates over a temperature range of -40°C to 125°C and is packaged in a 5-pin SOT-23 package.
Key Specifications
| Parameter | Description |
|---|---|
| Part Number | TPS3820-33QDBVRQ1 |
| Package | 5-pin SOT-23 (DBV) |
| Operating Temperature Range | -40°C to 125°C |
| Supply Voltage Supervision Range | 2.5 V, 3 V, 3.3 V, 5 V |
| Threshold Voltage (VIT) | 2.88 V to 3.00 V for 3.3 V option |
| Reset Output | Active-low, push-pull or open-drain |
| Power-on Reset Delay | 25 ms (TPS3820), 200 ms (other variants) |
| Watchdog Timer | Available with time-out options of 200 ms and 1.6 s |
| Supply Current | 15 μA (typical) |
| ESD Protection | Exceeds 2000 V per MIL-STD-883, Method 3015 |
Key Features
- Qualified for automotive applications with AEC-Q100 compliance
- Power-on reset generator with fixed delay times (25 ms or 200 ms)
- Manual reset input available
- Reset output available in active-low, active-high, and open-drain configurations
- Supply voltage supervision for 2.5 V, 3 V, 3.3 V, and 5 V
- Watchdog timer with time-out options
- Low supply current of 15 μA (typical)
- ESD protection exceeding 2000 V per MIL-STD-883, Method 3015
Applications
- Automotive DSPs, microcontrollers, or microprocessors
- Industrial equipment
- Programmable controls
- Automotive systems
- Portable and battery-powered equipment
- Intelligent instruments
- Wireless communications systems
Q & A
- What is the primary function of the TPS3820-33QDBVRQ1?
The primary function is to provide circuit initialization and timing supervision, particularly for DSP and processor-based systems.
- What is the operating temperature range of the TPS3820-33QDBVRQ1?
The operating temperature range is -40°C to 125°C.
- What are the available reset output configurations for the TPS3820-33QDBVRQ1?
The reset output is available in active-low, active-high, and open-drain configurations.
- Does the TPS3820-33QDBVRQ1 have a watchdog timer?
- What is the typical supply current of the TPS3820-33QDBVRQ1?
The typical supply current is 15 μA.
- Is the TPS3820-33QDBVRQ1 qualified for automotive applications?
- What is the package type of the TPS3820-33QDBVRQ1?
The device is packaged in a 5-pin SOT-23 package.
- What are the threshold voltage ranges for the 3.3 V option?
The threshold voltage ranges from 2.88 V to 3.00 V for the 3.3 V option.
- Does the TPS3820-33QDBVRQ1 have ESD protection?
- What are some typical applications of the TPS3820-33QDBVRQ1?
It is used in automotive systems, industrial equipment, programmable controls, portable and battery-powered equipment, intelligent instruments, and wireless communications systems.
