Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Simple Reset/Power-On Reset |
| Number of Voltages Monitored | 1 |
| Voltage - Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active High |
| Reset Timeout | 120ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
The TPS3825-33DBVR is a voltage supervisor or reset IC designed by Texas Instruments. It is part of the TPS382x series, which offers precision monitoring for system voltages in various electronic applications. Specifically, the TPS3825-33 is tailored to monitor a 3.3V supply voltage and provides a reset signal to ensure the system operates correctly during power-up, power-down, or brownout conditions.
Key features of the TPS3825-33DBVR include a fixed threshold voltage of 3.3V, low supply current, and a push-pull active-low reset output. It also has a time delay, adjustable via an external capacitor, to prevent false triggering of the reset signal. The device is housed in a small SOT-23 package, making it suitable for space-constrained applications. Typical applications include microcontroller and DSP systems, portable and battery-powered devices, and other electronic circuits requiring reliable voltage supervision. Overall, it provides robust system reliability by ensuring proper voltage levels are maintained, protecting against potential operational errors.
Key features of the TPS3825-33DBVR include a fixed threshold voltage of 3.3V, low supply current, and a push-pull active-low reset output. It also has a time delay, adjustable via an external capacitor, to prevent false triggering of the reset signal. The device is housed in a small SOT-23 package, making it suitable for space-constrained applications. Typical applications include microcontroller and DSP systems, portable and battery-powered devices, and other electronic circuits requiring reliable voltage supervision. Overall, it provides robust system reliability by ensuring proper voltage levels are maintained, protecting against potential operational errors.
Equivalent
The TPS3825-33DBVR is a voltage supervisor IC from Texas Instruments. Equivalent products include:
1. MAX809 series by Maxim Integrated: Offers similar voltage monitoring and reset functionality.
2. MIC809 series by Microchip Technology: Provides comparable features for voltage supervision.
3. STM706 series by STMicroelectronics: Another alternative with voltage detection capabilities.
4. ADM809 series by Analog Devices: Similar reset supervisory functions.
Always verify specifications to ensure compatibility with your application.
1. MAX809 series by Maxim Integrated: Offers similar voltage monitoring and reset functionality.
2. MIC809 series by Microchip Technology: Provides comparable features for voltage supervision.
3. STM706 series by STMicroelectronics: Another alternative with voltage detection capabilities.
4. ADM809 series by Analog Devices: Similar reset supervisory functions.
Always verify specifications to ensure compatibility with your application.
Features
The TPS3825-33DBVR is a voltage supervisor from Texas Instruments, designed to monitor the supply voltage in microprocessor and digital systems. Its key features include:
1. Precision Monitoring: It provides a precise reset threshold voltage of 3.3V, ensuring reliable system operation by preventing incorrect functioning due to undervoltage.
2. Low Supply Current: The device operates with a low supply current, typically around 15 µA, making it energy efficient.
3. Reset Functionality: It has an active-low reset output with a delay time of 200 ms, ensuring sufficient time for systems to stabilize before resuming operation.
4. Wide Operating Voltage Range: The TPS3825-33DBVR operates over a voltage range from 1.8V to 6V, offering flexibility for various applications.
5. Temperature Range: It is designed to work in a temperature range from –40°C to +85°C, suitable for various environmental conditions.
6. Package: It comes in a small SOT-23 package, which is space-efficient for compact system designs.
These features make the TPS3825-33DBVR suitable for robust power supervision in embedded and microcontroller-based systems.
1. Precision Monitoring: It provides a precise reset threshold voltage of 3.3V, ensuring reliable system operation by preventing incorrect functioning due to undervoltage.
2. Low Supply Current: The device operates with a low supply current, typically around 15 µA, making it energy efficient.
3. Reset Functionality: It has an active-low reset output with a delay time of 200 ms, ensuring sufficient time for systems to stabilize before resuming operation.
4. Wide Operating Voltage Range: The TPS3825-33DBVR operates over a voltage range from 1.8V to 6V, offering flexibility for various applications.
5. Temperature Range: It is designed to work in a temperature range from –40°C to +85°C, suitable for various environmental conditions.
6. Package: It comes in a small SOT-23 package, which is space-efficient for compact system designs.
These features make the TPS3825-33DBVR suitable for robust power supervision in embedded and microcontroller-based systems.
Pinout
The TPS3825-33DBVR is a voltage supervisor integrated circuit (IC) from Texas Instruments. It comes in a 5-pin SOT-23 package. The primary function of this IC is to monitor the supply voltage in microcontroller and digital systems and provide a reset signal to ensure proper operation after power-up or during voltage drops.
Here are the pin functions:
1. Pin 1 (RESET): This is the reset output pin. It goes low when the monitored voltage drops below the specified threshold, triggering a reset to the system.
2. Pin 2 (GND): The ground pin. It is the reference point for the IC.
3. Pin 3 (MR): Manual reset input. A low signal on this pin will force the RESET pin to go low.
4. Pin 4 (VDD): Supply voltage pin. This is where the monitored voltage is connected.
5. Pin 5 (NC): No connection. This pin is not used in the circuit.
The TPS3825-33DBVR is specifically designed to monitor a 3.3V supply voltage.
Here are the pin functions:
1. Pin 1 (RESET): This is the reset output pin. It goes low when the monitored voltage drops below the specified threshold, triggering a reset to the system.
2. Pin 2 (GND): The ground pin. It is the reference point for the IC.
3. Pin 3 (MR): Manual reset input. A low signal on this pin will force the RESET pin to go low.
4. Pin 4 (VDD): Supply voltage pin. This is where the monitored voltage is connected.
5. Pin 5 (NC): No connection. This pin is not used in the circuit.
The TPS3825-33DBVR is specifically designed to monitor a 3.3V supply voltage.
Manufacturer
The manufacturer of the TPS3825-33DBVR is Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide variety of electronic components. These components include integrated circuits and embedded processors, which are essential for various electronic applications. TI is well-known for its innovation and contribution to the fields of analog and digital semiconductors, embedded processing, and related technologies. The company serves a wide array of industries, including consumer electronics, automotive, industrial, and communications. Texas Instruments is headquartered in Dallas, Texas, and has a strong presence worldwide, with operations in multiple countries.
Application
The TPS3825-33DBVR is a voltage supervisor IC primarily used for monitoring power supply voltages in electronic systems. Its application areas include:
1. Microcontroller and Microprocessor Systems: Ensures reliable operation by resetting the processor during power-up, power-down, or brownout conditions.
2. Embedded Systems: Provides precise voltage monitoring for stability and reliability.
3. Consumer Electronics: Used in devices like TVs, gaming consoles, and set-top boxes for power management.
4. Industrial Equipment: Monitors critical functions in automation and control systems.
5. Networking and Telecommunications: Ensures stable power for routers, switches, and modems.
6. Automotive Electronics: Used in various modules for maintaining system integrity.
These applications leverage its features like low power consumption, precision voltage monitoring, and a small footprint.
1. Microcontroller and Microprocessor Systems: Ensures reliable operation by resetting the processor during power-up, power-down, or brownout conditions.
2. Embedded Systems: Provides precise voltage monitoring for stability and reliability.
3. Consumer Electronics: Used in devices like TVs, gaming consoles, and set-top boxes for power management.
4. Industrial Equipment: Monitors critical functions in automation and control systems.
5. Networking and Telecommunications: Ensures stable power for routers, switches, and modems.
6. Automotive Electronics: Used in various modules for maintaining system integrity.
These applications leverage its features like low power consumption, precision voltage monitoring, and a small footprint.
Package
The TPS3825-33DBVR is a voltage supervisor IC from Texas Instruments, housed in a SOT-23-5 package. This compact package is ideal for space-constrained applications, providing reliable power supply monitoring with a 3.3V threshold.
