Overview
The TPS3801I50DCKRG4 is a part of the TPS380x family of ultra-small supply voltage supervisors produced by Texas Instruments. These devices are designed to monitor supply voltages and provide circuit initialization and timing supervision, primarily for DSPs, microcontrollers, and other processor-based systems.
The TPS3801I50DCKRG4 is specifically configured with a fixed delay time of 200 ms and a threshold voltage of 4.55 V, making it suitable for a variety of applications requiring precise voltage monitoring and reset functionality.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| Supply Voltage, VDD | 1.6 | 6 | V | |
| Threshold Voltage | 4.45 | 4.55 | 4.65 | V |
| Threshold Hysteresis | 60 | mV | ||
| Supply Current, IDD | 9 | 12 | μA | |
| Reset Delay Time | 120 | 200 | 280 | ms |
| Operating Temperature Range | –40 | +85 | °C | |
| Package Type | SC-70 (5-pin) |
Key Features
- Precision Supply Voltage Monitor: The device monitors supply voltages with a threshold accuracy of 2%–2.5%.
- Power-On Reset Generator: Asserts a push-pull RESET signal with a fixed delay time of 200 ms.
- Manual Reset Input: Except for the TPS3801-01, the device includes a manual reset input (MR) that activates RESET when driven low.
- Low Supply Current: Typical supply current of 9 μA.
- Compact Package: Available in a 5-pin SC-70 package, which is about half the size of a 5-pin SOT-23 package.
- Wide Temperature Range: Fully specified over a temperature range of –40°C to +85°C.
Applications
- Applications Using DSPs, Microcontrollers, or Microprocessors: Ideal for systems requiring precise voltage monitoring and reset functionality.
- Wireless Communication Systems: Suitable for battery-powered and wireless communication devices.
- Portable/Battery-Powered Equipment: Used in portable devices to ensure reliable operation under varying power conditions.
- Programmable Controls: Applied in programmable control systems that require robust voltage supervision.
- Industrial Equipment: Used in industrial settings for reliable operation and fault detection.
- Notebook/Desktop Computers: Ensures proper system initialization and reset in computer systems.
- Automotive Systems: Suitable for automotive applications due to its wide temperature range and reliability.
Q & A
- What is the primary function of the TPS3801I50DCKRG4?
The primary function is to monitor supply voltages and provide circuit initialization and timing supervision.
- What is the threshold voltage for the TPS3801I50DCKRG4?
The threshold voltage is 4.55 V.
- What is the reset delay time for the TPS3801I50DCKRG4?
The reset delay time is 200 ms.
- What is the typical supply current of the TPS3801I50DCKRG4?
The typical supply current is 9 μA.
- What package type is the TPS3801I50DCKRG4 available in?
The device is available in a 5-pin SC-70 package.
- What is the operating temperature range of the TPS3801I50DCKRG4?
The operating temperature range is –40°C to +85°C.
- Does the TPS3801I50DCKRG4 have a manual reset input?
Yes, except for the TPS3801-01, the device includes a manual reset input (MR).
- What are some common applications of the TPS3801I50DCKRG4?
Common applications include DSPs, microcontrollers, wireless communication systems, portable/battery-powered equipment, and industrial equipment.
- How accurate is the threshold voltage monitoring of the TPS3801I50DCKRG4?
The threshold voltage accuracy is 2%–2.5%.
- Is the TPS3801I50DCKRG4 suitable for automotive applications?
Yes, it is suitable due to its wide temperature range and reliability.
