Overview
The TPS3702CX33DDCT from Texas Instruments is a high-accuracy overvoltage and undervoltage window voltage detector. This integrated circuit is designed to monitor voltage supplies with high precision, making it an excellent choice for systems operating on low-voltage supply rails with narrow margin supply tolerances. The device is packaged in a small SOT-23-THN (DDC) package with 6 pins, ensuring compactness and efficiency in space-constrained applications. It operates over an industrial temperature range of –40°C to 125°C, enhancing its reliability in various environments.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of supplies monitored | 1 | Threshold voltage 1 (typ) (V) | 1, 1.2, 1.8, 3.3, 5 |
| Input Voltage Range (V) | 2 to 18 | Reset threshold accuracy (%) | 0.9 |
| Quiescent current (typ) (µA) | 7 | Output driver type/reset output | Active-low, Open-drain |
| Time delay (ms) | 0 | Supply voltage (min) (V) | 2 |
| Supply voltage (max) (V) | 18 | Rating | Catalog |
| Watchdog timer WDI (s) | Internal threshold hysteresis (%) | 0.55%, 1.0% | |
| Package | SOT-23-THN (DDC)-6 | Operating temperature range (°C) | –40 to 125 |
Key Features
- High Threshold Accuracy: 0.25% (typical), 0.9% over the temperature range of –40°C to 125°C.
- Fixed Window Thresholds: Optimized for nominal rails between 1V and 5V.
- Open-Drain Outputs: For overvoltage and undervoltage indication.
- Internal Glitch Immunity and Noise Filters: To eliminate false resets resulting from erroneous signals.
- Threshold Adjust Using the SET Pin: Allows selection between two available threshold voltages.
- Low Quiescent Current: 7µA (typical).
- Internal Threshold Hysteresis: 0.55%, 1.0% to prevent false reset signals.
- No External Resistors Required: For setting overvoltage and undervoltage reset thresholds, enhancing accuracy and reducing solution size and cost.
- Independent Reset Outputs: For OV and UV pins, with the option to tie them together due to the open-drain configuration.
Applications
- Automotive Industry: For overvoltage protection.
- Industrial Applications: For power management.
- Home Automation: For voltage monitoring.
- Consumer Electronics: For power supply protection.
- Telecommunications: For circuit protection.
- Medical Devices: For battery monitoring.
- Renewable Energy Systems: For voltage supervision.
- Aerospace and Defense: For power supply monitoring.
Q & A
- What is the primary function of the TPS3702CX33DDCT?
The TPS3702CX33DDCT is a high-accuracy overvoltage and undervoltage window voltage detector.
- What is the operating temperature range of the TPS3702CX33DDCT?
The device operates over an industrial temperature range of –40°C to 125°C.
- What is the input voltage range for the TPS3702CX33DDCT?
The input voltage range is from 2V to 18V.
- Does the TPS3702CX33DDCT require external resistors for setting thresholds?
No, the device does not require external resistors for setting overvoltage and undervoltage reset thresholds.
- What is the typical quiescent current of the TPS3702CX33DDCT?
The typical quiescent current is 7µA.
- What type of outputs does the TPS3702CX33DDCT have?
The device has open-drain outputs for overvoltage and undervoltage indication.
- How does the SET pin function in the TPS3702CX33DDCT?
The SET pin allows users to select between two available threshold voltages.
- What are the key applications of the TPS3702CX33DDCT?
The device is used in various applications including automotive, industrial, home automation, consumer electronics, telecommunications, medical devices, renewable energy systems, and aerospace and defense.
- What is the package type and pin count of the TPS3702CX33DDCT?
The device is packaged in a SOT-23-THN (DDC) package with 6 pins.
- Does the TPS3702CX33DDCT have internal glitch immunity and noise filters?
Yes, the device features internal glitch immunity and noise filters to eliminate false resets.
