Overview
The TPS3801K33DCKRG4 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, particularly for DSPs, microcontrollers, and microprocessors. The TPS3801K33DCKRG4 is housed in a small 5-pin SC-70 (SOT-323) package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 1.6 | 6 | V | |
| Threshold Voltage (VIT-) | 2.87 | 2.93 | 2.99 | V |
| Threshold Hysteresis (Vhys) | 40 | mV | ||
| Supply Current (IDD) | 9 | 12 | μA | |
| High-Level Output Voltage (VOH) | VDD - 0.4 | V | ||
| Low-Level Output Voltage (VOL) | 0.2 | V | ||
| RESET Recovery Delay Time | 120 | 200 | 280 | ms |
| Operating Junction Temperature Range | -40 | 85 | °C |
Key Features
- Small Package: 5-pin SC-70 (SOT-323) package, which is about half the size of a 5-pin SOT-23 package.
- Precision Supply Voltage Monitor: Available with fixed thresholds of 1.8 V, 2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, and adjustable options.
- Power-On Reset Generator: With fixed delay times (200 ms for TPS3801).
- Manual Reset Input: Except for the TPS3801-01, devices incorporate a manual reset input (MR).
- Low Supply Current: Typically 9 μA.
- 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 functions.
- Wireless Communication Systems: Suitable for battery-powered and low-power wireless devices.
- Portable/Battery-Powered Equipment: Optimized for low power consumption.
- Programmable Controls: Used in various control systems requiring reliable voltage monitoring.
- Intelligent Instruments: Applicable in smart devices and instruments.
- Industrial Equipment: Suitable for industrial automation and control systems.
- Notebook/Desktop Computers: Used in power management circuits.
- Automotive Systems: Compatible with automotive electronics requiring robust voltage monitoring.
Q & A
- What is the primary function of the TPS3801K33DCKRG4?
The primary function is to monitor supply voltages and provide circuit initialization and timing supervision.
- What is the package type of the TPS3801K33DCKRG4?
The device is housed in a 5-pin SC-70 (SOT-323) package.
- What are the available threshold voltages for the TPS380x family?
The devices are available with fixed thresholds of 1.8 V, 2.5 V, 2.7 V, 3 V, 3.3 V, 5 V, and adjustable options.
- What is the typical supply current of the TPS3801K33DCKRG4?
The typical supply current is 9 μA.
- Does the TPS3801K33DCKRG4 have a manual reset input?
- What is the operating temperature range of the TPS3801K33DCKRG4?
The device is fully specified over a temperature range of –40°C to +85°C.
- What is the reset recovery delay time for the TPS3801K33DCKRG4?
The reset recovery delay time is typically 200 ms.
- What are some common applications of the TPS3801K33DCKRG4?
Common applications include DSPs, microcontrollers, wireless communication systems, portable/battery-powered equipment, and industrial equipment.
- How does the TPS3801K33DCKRG4 handle power-on reset?
The device includes a power-on reset generator with a fixed delay time.
- What is the maximum low-output current of the TPS3801K33DCKRG4?
The maximum low-output current is 5 mA.
- What is the threshold hysteresis for the TPS3801K33DCKRG4?
The threshold hysteresis is 40 mV.
