Спецификации
| Атрибут | Ценность |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| Type | Simple Reset/Power-On Reset |
| NumberofVoltagesMonitored | 1 |
| Voltage-Threshold | 2.93V |
| Output | Push-Pull, Totem Pole |
| Reset | Active Low |
| ResetTimeout | 140ms Minimum |
| OperatingTemperature | -40°C ~ 85°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Обзор
Description
The TPS3705-33DR is a voltage supervisor and power management integrated circuit designed by Texas Instruments. It is primarily used to monitor system voltages in microcontroller and microprocessor applications. The device offers dual voltage monitoring, ensuring that the system operates within specified voltage levels, which is crucial for reliable performance.
Key features of the TPS3705-33DR include:
1. Dual Voltage Monitoring: It monitors two independent power rails, typically 3.3V and an adjustable threshold, providing flexibility for various applications.
2. Reset Functionality: The device generates a reset signal if the monitored voltages fall below the threshold, which helps in protecting the system from undervoltage conditions.
3. Power-On Reset Delay: It provides a delay function to ensure that the system stabilizes before the reset conditions are cleared.
4. Watchdog Timer: This function helps in monitoring the operation of the microcontroller, ensuring that it is functioning as expected.
The TPS3705-33DR is suitable for applications in consumer electronics, industrial systems, and any environment where reliable voltage monitoring is essential.
Key features of the TPS3705-33DR include:
1. Dual Voltage Monitoring: It monitors two independent power rails, typically 3.3V and an adjustable threshold, providing flexibility for various applications.
2. Reset Functionality: The device generates a reset signal if the monitored voltages fall below the threshold, which helps in protecting the system from undervoltage conditions.
3. Power-On Reset Delay: It provides a delay function to ensure that the system stabilizes before the reset conditions are cleared.
4. Watchdog Timer: This function helps in monitoring the operation of the microcontroller, ensuring that it is functioning as expected.
The TPS3705-33DR is suitable for applications in consumer electronics, industrial systems, and any environment where reliable voltage monitoring is essential.
Equivalent
The TPS3705-33DR is a voltage supervisor IC. Equivalent products include:
1. Microchip Technology MCP1316T-33LE/OT
2. ON Semiconductor NCP302LSN33T1G
3. Analog Devices ADM1232AARNZ
4. Maxim Integrated DS1834A+
5. STMicroelectronics STM708T
These alternatives offer similar voltage supervisory functions, but always check the datasheets for compatibility in terms of voltage thresholds, package type, and other specifications.
1. Microchip Technology MCP1316T-33LE/OT
2. ON Semiconductor NCP302LSN33T1G
3. Analog Devices ADM1232AARNZ
4. Maxim Integrated DS1834A+
5. STMicroelectronics STM708T
These alternatives offer similar voltage supervisory functions, but always check the datasheets for compatibility in terms of voltage thresholds, package type, and other specifications.
Features
The TPS3705-33DR is a voltage supervisor and power management IC designed to monitor supply voltages in electronic devices. Key features include:
1. Voltage Monitoring: It monitors both over-voltage and under-voltage conditions, specifically designed for 3.3V systems.
2. Reset Functionality: The device provides a reset signal to ensure the system starts in a known state after a power-up or fault condition.
3. Watchdog Timer: It includes an adjustable watchdog timer to monitor software execution and ensure system reliability.
4. Dual Outputs: The IC offers dual reset outputs for versatile system design.
5. Precision Thresholds: It has precise voltage threshold detection, enhancing system stability and performance.
6. Temperature Range: The device operates over a wide temperature range, making it suitable for various applications.
7. Package: It is available in a compact 8-pin SOIC package, facilitating easy integration into circuit designs.
These features make the TPS3705-33DR ideal for applications requiring reliable power supervision, such as microcontrollers and embedded systems.
1. Voltage Monitoring: It monitors both over-voltage and under-voltage conditions, specifically designed for 3.3V systems.
2. Reset Functionality: The device provides a reset signal to ensure the system starts in a known state after a power-up or fault condition.
3. Watchdog Timer: It includes an adjustable watchdog timer to monitor software execution and ensure system reliability.
4. Dual Outputs: The IC offers dual reset outputs for versatile system design.
5. Precision Thresholds: It has precise voltage threshold detection, enhancing system stability and performance.
6. Temperature Range: The device operates over a wide temperature range, making it suitable for various applications.
7. Package: It is available in a compact 8-pin SOIC package, facilitating easy integration into circuit designs.
These features make the TPS3705-33DR ideal for applications requiring reliable power supervision, such as microcontrollers and embedded systems.
Pinout
The TPS3705-33DR is an integrated circuit designed for supervisory functions in microcontroller and microprocessor systems. It is commonly used to monitor power supply voltage levels and ensure proper system reset operations.
The device comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pin functions are as follows:
1. OUT: Reset output, typically active low.
2. GND: Ground connection.
3. MR: Manual reset input, active low.
4. CT: Capacitor timer input, used to set the delay time for the reset.
5. N/C: No connection.
6. VDD: Supply voltage input, which the device monitors.
7. WDI: Watchdog input, used to monitor the activity of the system.
8. WDO: Watchdog output, typically active low, indicating a watchdog timeout.
This configuration allows the TPS3705-33DR to provide voltage monitoring, reset control, and watchdog timer functions, ensuring reliable operation of the overall system.
The device comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. The pin functions are as follows:
1. OUT: Reset output, typically active low.
2. GND: Ground connection.
3. MR: Manual reset input, active low.
4. CT: Capacitor timer input, used to set the delay time for the reset.
5. N/C: No connection.
6. VDD: Supply voltage input, which the device monitors.
7. WDI: Watchdog input, used to monitor the activity of the system.
8. WDO: Watchdog output, typically active low, indicating a watchdog timeout.
This configuration allows the TPS3705-33DR to provide voltage monitoring, reset control, and watchdog timer functions, ensuring reliable operation of the overall system.
Manufacturer
The TPS3705-33DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components. Founded in 1930 and headquartered in Dallas, Texas, TI is known for its development of analog chips, embedded processors, and other semiconductor technologies. The company serves various industries, including automotive, industrial, consumer electronics, and communications, providing products that enable efficient design and performance in electronic systems.
Application
The TPS3705-33DR is a dual-voltage supervisor and reset IC, primarily used in applications that require monitoring of supply voltages to ensure system stability and reliability. Key application areas include:
1. Embedded Systems: Ensures microcontrollers and processors operate within specified voltage ranges.
2. Computer Systems: Provides reset functionality to prevent data corruption during power fluctuations.
3. Communication Equipment: Monitors power supplies in networking devices.
4. Consumer Electronics: Ensures stable operation in devices such as TVs and gaming consoles.
5. Industrial Automation: Protects control systems from voltage irregularities.
6. Automotive Electronics: Manages power integrity in various onboard systems.
These uses leverage its capabilities in voltage monitoring and reset signal generation.
1. Embedded Systems: Ensures microcontrollers and processors operate within specified voltage ranges.
2. Computer Systems: Provides reset functionality to prevent data corruption during power fluctuations.
3. Communication Equipment: Monitors power supplies in networking devices.
4. Consumer Electronics: Ensures stable operation in devices such as TVs and gaming consoles.
5. Industrial Automation: Protects control systems from voltage irregularities.
6. Automotive Electronics: Manages power integrity in various onboard systems.
These uses leverage its capabilities in voltage monitoring and reset signal generation.
Package
The TPS3705-33DR is a microprocessor supervisory circuit from Texas Instruments. It comes in a small-outline package (SOP) type, specifically a 8-pin SOIC (Small Outline Integrated Circuit) package. This package type is suitable for applications requiring reliable voltage monitoring and reset generation.
