Overview
The TPS3802K33DCKR is a supervisory circuit from Texas Instruments, designed to monitor supply voltages and provide circuit initialization and timing supervision. This device is particularly useful in systems using DSPs, microcontrollers, or microprocessors. It features a small 5-pin SC-70 (SOT-323) package, making it highly compact and suitable for a variety of applications. The TPS3802K33DCKR asserts a push-pull RESET signal when the supply voltage drops below a preset threshold, ensuring reliable system operation.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 5-Pin SC-70 (SOT-323) |
| Pins | 5 |
| Operating Temperature Range | –40°C to +85°C |
| Supply Voltage Range | 1.6 V to 6 V |
| Threshold Voltage | 2.93 V (Typical) |
| Delay Time | 400 ms (Typical) |
| Supply Current | 9 µA (Typical) |
| RESET Output Type | Push-Pull |
| Manual Reset Input | Available |
Key Features
- Small, 5-Pin SC-70 (SOT-323) Package
- Supply Current of 9 µA
- Power-On Reset Generator With Fixed Delay Time (400 ms for TPS3802)
- Precision Supply Voltage Monitor (1.8 V, 2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, and Adjustable)
- Manual Reset Input (Except TPS3801-01)
- Temperature Range: –40°C to +85°C
- Precision Reference with Threshold Accuracy of 2%—2.5%
Applications
- Applications Using DSPs, Microcontrollers, or Microprocessors
- Wireless Communication Systems
- Portable/Battery-Powered Equipment
- Programmable Controls
- Intelligent Instruments
- Industrial Equipment
- Notebook/Desktop Computers
- Automotive Systems
Q & A
- What is the primary function of the TPS3802K33DCKR? The primary function is to monitor supply voltages and provide circuit initialization and timing supervision.
- What is the package type of the TPS3802K33DCKR? It is a 5-Pin SC-70 (SOT-323) package.
- What is the operating temperature range of the TPS3802K33DCKR? The operating temperature range is –40°C to +85°C.
- What is the typical delay time for the TPS3802K33DCKR? The typical delay time is 400 ms.
- Does the TPS3802K33DCKR have a manual reset input? Yes, it does have a manual reset input.
- What is the supply current of the TPS3802K33DCKR? The supply current is typically 9 µA.
- What are the threshold voltages available for the TPS380x family? The threshold voltages include 1.8 V, 2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, and adjustable options.
- What types of systems can the TPS3802K33DCKR be used in? It can be used in systems with DSPs, microcontrollers, or microprocessors.
- Is the TPS3802K33DCKR suitable for automotive applications? Yes, it is suitable for automotive systems.
- What is the precision of the threshold voltage monitoring? The threshold voltage monitoring has an accuracy of 2%—2.5%.
