Overview
The TPS3705-33DR is a precision voltage supervisor and reset IC designed by Texas Instruments. This component is part of the TPS3705 series and is specifically tailored for applications requiring reliable power-on reset and voltage monitoring. The TPS3705-33DR features a fixed delay time of 200 ms, eliminating the need for an external capacitor, and provides a precise supply voltage monitor with a threshold voltage of 2.93 V. It is suitable for a wide range of applications, including microprocessors, microcontrollers, and other digital systems that require robust power management.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2 | - | 6 | V |
| Threshold Voltage | 2.57 | 2.63 | 2.68 | V |
| Reset Timeout | 140 ms | - | - | ms |
| Operating Temperature (TA) | -40 | - | 85 | °C |
| Supply Current (IDD) | 30 | - | 50 | µA |
| Output Type | - | - | - | Active Low, Push-Pull |
| Package | - | - | - | 8-SOIC (0.154", 3.90mm Width) |
Key Features
- Precision Supply Voltage Monitor: The TPS3705-33DR monitors the supply voltage with a precise threshold of 2.93 V.
- Fixed Delay Time: It features a fixed delay time of 200 ms, eliminating the need for an external capacitor.
- Active Low Reset: The device provides an active low reset output, ensuring reliable system initialization.
- Low Supply Current: The IC operates with a low supply current of 30 µA to 50 µA, making it energy-efficient.
- Integrated Watchdog Timer: The component includes an integrated watchdog timer, enhancing system reliability by monitoring for software or hardware failures.
Applications
The TPS3705-33DR is suitable for a variety of applications, including:
- Microprocessors and Microcontrollers: Ensures proper system initialization and monitors supply voltage to prevent malfunctions.
- Embedded Systems: Provides reliable power-on reset and voltage monitoring in embedded systems.
- Industrial Automation: Used in industrial control systems to ensure robust power management and system reliability.
- Consumer Electronics: Suitable for use in consumer electronics that require precise voltage monitoring and reset capabilities.
Q & A
- What is the primary function of the TPS3705-33DR?
The primary function of the TPS3705-33DR is to provide a precision supply voltage monitor and generate a power-on reset signal.
- What is the threshold voltage for the TPS3705-33DR?
The threshold voltage for the TPS3705-33DR is 2.93 V.
- Does the TPS3705-33DR require an external capacitor for the delay time?
No, the TPS3705-33DR features a fixed delay time of 200 ms and does not require an external capacitor.
- What is the operating temperature range for the TPS3705-33DR?
The operating temperature range for the TPS3705-33DR is -40°C to 85°C.
- What type of output does the TPS3705-33DR provide?
The TPS3705-33DR provides an active low, push-pull output.
- What is the typical supply current for the TPS3705-33DR?
The typical supply current for the TPS3705-33DR is between 30 µA and 50 µA.
- Does the TPS3705-33DR include an integrated watchdog timer?
- What package type is the TPS3705-33DR available in?
The TPS3705-33DR is available in an 8-SOIC package.
- Is the TPS3705-33DR RoHS compliant?
- What are some common applications for the TPS3705-33DR?
