Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| ResetTimeout | 15ms Minimum |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Overview
Description
The TPS3820-33DBVR is a voltage supervisor integrated circuit designed by Texas Instruments. It is used to monitor the supply voltage in electronic systems and ensure that the system remains in reset mode until the supply voltage reaches a proper level, preventing malfunction during power-up or brownout conditions. The device is particularly designed for systems requiring accurate voltage monitoring and reset functionality.
Key features include:
1. Voltage Monitoring: Supervises a 3.3V supply voltage with a typical threshold of 2.93V.
2. Reset Function: Provides an active-low reset signal when the monitored voltage drops below the threshold, ensuring the system remains in reset until stability.
3. Delay Time: Features a fixed reset delay time, allowing the power supply to stabilize before releasing the reset.
4. Low Supply Current: Offers low power consumption, suitable for battery-powered applications.
5. Compact Package: Available in a small SOT-23-5 package, which is ideal for space-constrained applications.
This device is essential in applications like microcontroller systems, ensuring reliable operation and protection from supply voltage anomalies.
Key features include:
1. Voltage Monitoring: Supervises a 3.3V supply voltage with a typical threshold of 2.93V.
2. Reset Function: Provides an active-low reset signal when the monitored voltage drops below the threshold, ensuring the system remains in reset until stability.
3. Delay Time: Features a fixed reset delay time, allowing the power supply to stabilize before releasing the reset.
4. Low Supply Current: Offers low power consumption, suitable for battery-powered applications.
5. Compact Package: Available in a small SOT-23-5 package, which is ideal for space-constrained applications.
This device is essential in applications like microcontroller systems, ensuring reliable operation and protection from supply voltage anomalies.
Equivalent
The TPS3820-33DBVR is a voltage supervisor or reset IC. Equivalent products include:
1. Maxim Integrated's MAX809 series (e.g., MAX809S series for 3.3V applications).
2. ON Semiconductor’s MC33064 series.
3. Microchip's MCP130/131 series (e.g., MCP130-315).
4. STMicroelectronics' STM1001 series.
These alternatives provide similar functionality for voltage monitoring and reset in electronic applications. Always check specific electrical characteristics and pin compatibility when selecting a replacement.
1. Maxim Integrated's MAX809 series (e.g., MAX809S series for 3.3V applications).
2. ON Semiconductor’s MC33064 series.
3. Microchip's MCP130/131 series (e.g., MCP130-315).
4. STMicroelectronics' STM1001 series.
These alternatives provide similar functionality for voltage monitoring and reset in electronic applications. Always check specific electrical characteristics and pin compatibility when selecting a replacement.
Features
The TPS3820-33DBVR is a voltage supervisor IC designed to monitor the supply voltage in electronic systems. Key features include:
1. Voltage Monitoring: It monitors a 3.3V supply rail and issues a reset signal when the voltage drops below a specified threshold, ensuring system stability.
2. Reset Output: The device provides an active-low reset output that can be used to reset or initialize microcontrollers and other digital circuits.
3. Precision Threshold: It offers a precise voltage threshold for accurate monitoring, enhancing the reliability of the system.
4. Low Supply Current: With its low power consumption, it is suitable for battery-operated applications.
5. Manual Reset Capability: The device includes a manual reset input, allowing users to trigger a reset externally.
6. Small Package: It is available in a compact SOT-23 package, making it ideal for space-constrained applications.
7. Wide Temperature Range: Operating temperature range from -40°C to +85°C, suitable for various environmental conditions.
These features make it a robust choice for ensuring reliable operation of electronic systems.
1. Voltage Monitoring: It monitors a 3.3V supply rail and issues a reset signal when the voltage drops below a specified threshold, ensuring system stability.
2. Reset Output: The device provides an active-low reset output that can be used to reset or initialize microcontrollers and other digital circuits.
3. Precision Threshold: It offers a precise voltage threshold for accurate monitoring, enhancing the reliability of the system.
4. Low Supply Current: With its low power consumption, it is suitable for battery-operated applications.
5. Manual Reset Capability: The device includes a manual reset input, allowing users to trigger a reset externally.
6. Small Package: It is available in a compact SOT-23 package, making it ideal for space-constrained applications.
7. Wide Temperature Range: Operating temperature range from -40°C to +85°C, suitable for various environmental conditions.
These features make it a robust choice for ensuring reliable operation of electronic systems.
Pinout
The TPS3820-33DBVR is a voltage supervisor IC that typically comes in a SOT-23-5 package, which means it has 5 pins. The primary function of this device is to monitor the voltage level of a system to ensure it stays above a predefined threshold, in this case, 3.3V. If the voltage drops below this threshold, the device will assert a reset signal to the connected microcontroller or processor to prevent it from operating under insufficient voltage conditions, which could lead to unreliable operation or data corruption.
Here is a brief overview of its pin functions:
1. GND: Ground connection.
2. MR (Manual Reset Input): An input for manually triggering a reset when pulled low.
3. RESET: The reset output, which goes low when the monitored voltage falls below the threshold or when MR is activated.
4. VDD: Supply voltage pin.
5. NC (No Connection): There is no internal connection to this pin.
This IC is commonly used in applications requiring reliable system resets, such as in microcontroller-based systems.
Here is a brief overview of its pin functions:
1. GND: Ground connection.
2. MR (Manual Reset Input): An input for manually triggering a reset when pulled low.
3. RESET: The reset output, which goes low when the monitored voltage falls below the threshold or when MR is activated.
4. VDD: Supply voltage pin.
5. NC (No Connection): There is no internal connection to this pin.
This IC is commonly used in applications requiring reliable system resets, such as in microcontroller-based systems.
Manufacturer
The TPS3820-33DBVR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. They are known for producing products for analog and digital embedded processing, power management, and wireless communication, among others. TI serves various industries, including automotive, consumer electronics, industrial automation, and telecommunications.
Application
The TPS3820-33DBVR is a voltage supervisory device used primarily in applications requiring reliable system monitoring and reset functions. It is commonly deployed in embedded systems, microcontroller-based applications, and industrial equipment to ensure proper startup and operation by monitoring power supply levels. The device is particularly useful in battery-powered devices, telecommunications equipment, and consumer electronics, where voltage precision and system stability are crucial. It helps prevent system malfunctions by generating a reset signal during power-up, power-down, and undervoltage conditions. Its compact size makes it suitable for space-constrained applications.
Package
The TPS3820-33DBVR is a voltage supervisor IC from Texas Instruments. It comes in a SOT-23-5 package, which is a small-outline transistor package with 5 pins. This package type is compact and suitable for space-constrained applications.
