Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Open Drain or Open Collector |
| Reset | Active Low |
| ResetTimeout | 10ms Minimum |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | SC-74A, SOT-753 |
Overview
Description
The TPS3838K33DBVR is a voltage supervisory circuit designed by Texas Instruments. It is primarily used to monitor system voltages and ensure they remain within specified parameters, thus protecting microcontrollers and other digital circuits from brownout conditions. The device operates with a supply voltage ranging from 1.65V to 6V and is optimized for low power consumption, making it suitable for battery-powered applications.
Key features include a precision voltage detector with a fixed threshold voltage of 3.3V and a reset capability that ensures a controlled start-up. The reset output is open-drain and active-low, which allows for interfacing with various logic levels. The circuit also features a high tolerance for voltage fluctuations and transient conditions, enhancing system reliability.
Packaged in a small SOT-23-5 package, the TPS3838K33DBVR is ideal for space-constrained applications. Its robustness and reliability make it suitable for use in a wide range of electronics, including consumer electronics, industrial systems, and communication devices.
Key features include a precision voltage detector with a fixed threshold voltage of 3.3V and a reset capability that ensures a controlled start-up. The reset output is open-drain and active-low, which allows for interfacing with various logic levels. The circuit also features a high tolerance for voltage fluctuations and transient conditions, enhancing system reliability.
Packaged in a small SOT-23-5 package, the TPS3838K33DBVR is ideal for space-constrained applications. Its robustness and reliability make it suitable for use in a wide range of electronics, including consumer electronics, industrial systems, and communication devices.
Equivalent
The TPS3838K33DBVR is a voltage supervisor or reset IC. Equivalent products include:
1. *Microchip Technology* MCP130T-300I/TT
2. *ON Semiconductor* NCP300LSN30T1G
3. *STMicroelectronics* STM1811MWX7F
4. *Maxim Integrated* MAX810T
These alternatives should be verified for compatibility in your specific application, considering parameters such as voltage threshold, reset delay, and package type.
1. *Microchip Technology* MCP130T-300I/TT
2. *ON Semiconductor* NCP300LSN30T1G
3. *STMicroelectronics* STM1811MWX7F
4. *Maxim Integrated* MAX810T
These alternatives should be verified for compatibility in your specific application, considering parameters such as voltage threshold, reset delay, and package type.
Features
The TPS3838K33DBVR is a voltage supervisor IC designed to monitor system voltages in electronic applications. Key features include:
1. Supply Voltage Monitoring: It supports a typical threshold voltage of 3.3V.
2. Low Supply Current: The device operates with a low quiescent current, making it energy-efficient.
3. Precision Threshold: Offers accurate voltage monitoring with a threshold accuracy of ±2%.
4. Reset Functionality: Includes a reset output to ensure the system is in a known state when the monitored voltage level falls below the threshold.
5. Active-Low Output: Provides an active-low reset signal.
6. Manual Reset Capability: Allows for an external input to manually trigger a reset.
7. Fast Propagation Delay: Ensures quick response times to changes in voltage levels.
8. Small Package: Available in a SOT-23 package, suitable for compact designs.
9. Temperature Range: Operates over a wide temperature range, typically from -40°C to 85°C.
These features make the TPS3838K33DBVR suitable for applications requiring reliable voltage monitoring and reset control, such as microprocessor and microcontroller systems.
1. Supply Voltage Monitoring: It supports a typical threshold voltage of 3.3V.
2. Low Supply Current: The device operates with a low quiescent current, making it energy-efficient.
3. Precision Threshold: Offers accurate voltage monitoring with a threshold accuracy of ±2%.
4. Reset Functionality: Includes a reset output to ensure the system is in a known state when the monitored voltage level falls below the threshold.
5. Active-Low Output: Provides an active-low reset signal.
6. Manual Reset Capability: Allows for an external input to manually trigger a reset.
7. Fast Propagation Delay: Ensures quick response times to changes in voltage levels.
8. Small Package: Available in a SOT-23 package, suitable for compact designs.
9. Temperature Range: Operates over a wide temperature range, typically from -40°C to 85°C.
These features make the TPS3838K33DBVR suitable for applications requiring reliable voltage monitoring and reset control, such as microprocessor and microcontroller systems.
Pinout
The TPS3838K33DBVR is a voltage supervisor IC manufactured by Texas Instruments. It is designed to monitor the supply voltage in microcontroller and microprocessor systems and provide a reset signal when the supply voltage drops below a specified threshold.
The TPS3838K33DBVR typically comes in a SOT-23-5 package, meaning it has 5 pins. Here are the pin functions:
1. VDD: Supply voltage input. Connect to the voltage that needs to be monitored.
2. GND: Ground. Connect to the system ground.
3. RESET: Active-low reset output. When the monitored voltage is below the threshold, this pin goes low.
4. MR: Manual reset input. An external signal can be applied to force a reset.
5. NC (No Connect): Not internally connected, typically left unconnected.
This device is optimized for 3.3V systems, ensuring reliable operation by resetting the system when the voltage drops too low.
The TPS3838K33DBVR typically comes in a SOT-23-5 package, meaning it has 5 pins. Here are the pin functions:
1. VDD: Supply voltage input. Connect to the voltage that needs to be monitored.
2. GND: Ground. Connect to the system ground.
3. RESET: Active-low reset output. When the monitored voltage is below the threshold, this pin goes low.
4. MR: Manual reset input. An external signal can be applied to force a reset.
5. NC (No Connect): Not internally connected, typically left unconnected.
This device is optimized for 3.3V systems, ensuring reliable operation by resetting the system when the voltage drops too low.
Manufacturer
The TPS3838K33DBVR is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are used in a wide array of electronic devices. Headquartered in Dallas, Texas, the company is known for its focus on developing analog chips and embedded processors, which are essential components in modern electronics. TI serves a broad range of industries, including automotive, industrial, personal electronics, communications equipment, and enterprise systems. The company is highly regarded for its innovation and extensive portfolio of semiconductor products that support efficiency and performance improvements in electronic systems.
Application
The TPS3838K33DBVR is a voltage supervisor integrated circuit primarily used in applications requiring reliable power monitoring and reset functions. Key application areas include:
1. Embedded Systems: Ensures stable operation by monitoring supply voltage and providing reset signals to microcontrollers.
2. Consumer Electronics: Used in devices such as smartphones and tablets to prevent malfunction due to power supply issues.
3. Industrial Automation: Provides reliable voltage monitoring in PLCs and other industrial equipment.
4. Automotive Systems: Enhances safety and reliability by supervising voltage levels in automotive electronics.
5. Computing Devices: Used in computers and servers to ensure proper boot-up and operation by monitoring power supply integrity.
1. Embedded Systems: Ensures stable operation by monitoring supply voltage and providing reset signals to microcontrollers.
2. Consumer Electronics: Used in devices such as smartphones and tablets to prevent malfunction due to power supply issues.
3. Industrial Automation: Provides reliable voltage monitoring in PLCs and other industrial equipment.
4. Automotive Systems: Enhances safety and reliability by supervising voltage levels in automotive electronics.
5. Computing Devices: Used in computers and servers to ensure proper boot-up and operation by monitoring power supply integrity.
Package
The TPS3838K33DBVR is packaged in a SOT-23-5 format. This is a small-outline transistor package with five leads, commonly used for surface-mount applications.
