Overview
The TPS3839K33DBZR is a voltage supervisory circuit produced by Texas Instruments. It is part of the TPS3839 series, designed to monitor a single voltage supply and provide a reset signal when the supply voltage drops below a predefined threshold. This device is particularly suited for low-power and portable applications due to its ultra-low current consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | TPS3839K33DBZR |
| Package Type | SOT-23 (DBZ) |
| Pins | 3 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 0.9 V to 6.5 V |
| Typical Supply Current (Iq) | 150 nA |
| Monitored Voltage (Typical) | 3.3 V |
| Reset Threshold Accuracy | 1.6% |
| Reset Output Type | Active-low, Push-pull |
| Time Delay | 200 ms (Typical) |
| RoHS Compliance | Yes |
| Pb Free | Yes |
Key Features
- Ultralow Supply Current: Typical current consumption of 150 nA, making it ideal for low-power applications.
- Precision Reset Thresholds: Factory-trimmed reset threshold voltages ensure accurate monitoring.
- Push-Pull RESET Output: Provides a robust reset signal.
- Operating Supply Voltage Range: From 0.9 V to 6.5 V, with valid reset for VDD > 0.6 V.
- Compact Packaging: Available in 3-pin SOT-23 (DBZ) and 4-pin X2SON packages.
Applications
The TPS3839K33DBZR is suitable for a variety of applications, including:
- Low-Power and Portable Devices: Ideal for battery-powered devices due to its ultra-low current consumption.
- Embedded Systems: Used in microcontroller-based systems to ensure stable operation by monitoring the supply voltage.
- Industrial Automation: Can be used in industrial control systems to provide reliable voltage monitoring.
- Consumer Electronics: Suitable for use in various consumer electronic devices that require voltage supervision.
Q & A
- What is the typical supply current of the TPS3839K33DBZR?
The typical supply current is 150 nA. - What is the operating temperature range of the TPS3839K33DBZR?
The operating temperature range is -40°C to 85°C. - What type of package is the TPS3839K33DBZR available in?
The TPS3839K33DBZR is available in a 3-pin SOT-23 (DBZ) package. - What is the reset output type of the TPS3839K33DBZR?
The reset output type is active-low, push-pull. - What is the time delay for the reset signal?
The time delay for the reset signal is typically 200 ms. - Is the TPS3839K33DBZR RoHS compliant?
Yes, the TPS3839K33DBZR is RoHS compliant. - What is the monitored voltage for the TPS3839K33DBZR?
The monitored voltage is typically 3.3 V. - What is the reset threshold accuracy of the TPS3839K33DBZR?
The reset threshold accuracy is 1.6%. - Can the TPS3839K33DBZR be used in industrial automation?
Yes, it can be used in industrial control systems to provide reliable voltage monitoring. - Is the TPS3839K33DBZR suitable for low-power applications?
Yes, it is ideal for low-power and portable applications due to its ultra-low current consumption.
