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 Low |
| Reset Timeout | 120ms Minimum |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Tổng quan
Description
The TPS3839K33DBZR is a precision voltage supervisor or reset IC (Integrated Circuit) manufactured by Texas Instruments. It is designed to monitor the supply voltage in microcontroller and microprocessor systems, ensuring reliable operation by providing a reset signal whenever the supply voltage falls below a predefined threshold. The TPS3839K33DBZR is specifically configured to monitor a 3.3V power rail, and it generates an active-low reset signal when the voltage drops below a typical threshold value.
Key features of the TPS3839K33DBZR include a low supply current, a fixed threshold voltage, and a small SOT-23 package, making it suitable for compact and power-sensitive applications. The device also features a push-pull reset output, eliminating the need for an external pull-up resistor, and it has a fast response time to changes in supply voltage.
Overall, the TPS3839K33DBZR is ideal for applications requiring a reliable voltage monitor, such as in battery-powered devices, embedded systems, and other electronics where maintaining correct operation after power fluctuations is critical.
Key features of the TPS3839K33DBZR include a low supply current, a fixed threshold voltage, and a small SOT-23 package, making it suitable for compact and power-sensitive applications. The device also features a push-pull reset output, eliminating the need for an external pull-up resistor, and it has a fast response time to changes in supply voltage.
Overall, the TPS3839K33DBZR is ideal for applications requiring a reliable voltage monitor, such as in battery-powered devices, embedded systems, and other electronics where maintaining correct operation after power fluctuations is critical.
Equivalent
The TPS3839K33DBZR is a voltage supervisory IC. Equivalent products include:
1. Microchip MCP100T-315I/TT - similar voltage monitoring capabilities.
2. ON Semiconductor NCP300LSN30T1G - comparable function in voltage supervision.
3. STMicroelectronics STM809T - offers similar voltage detection and reset features.
4. Maxim Integrated MAX809S - equivalent in terms of voltage monitoring and reset functionality.
When selecting an equivalent, ensure to match the voltage threshold, package, and temperature range.
1. Microchip MCP100T-315I/TT - similar voltage monitoring capabilities.
2. ON Semiconductor NCP300LSN30T1G - comparable function in voltage supervision.
3. STMicroelectronics STM809T - offers similar voltage detection and reset features.
4. Maxim Integrated MAX809S - equivalent in terms of voltage monitoring and reset functionality.
When selecting an equivalent, ensure to match the voltage threshold, package, and temperature range.
Features
The TPS3839K33DBZR is a low-power, high-precision voltage supervisor designed by Texas Instruments. It is commonly used in applications requiring reliable system reset functions. Key features include:
1. Low Supply Current: Consumes minimal power, ideal for battery-operated devices.
2. Precision Monitoring: Monitors a 3.3V supply voltage with high accuracy.
3. Manual Reset Input: Allows external control over the reset state.
4. Fixed Delay Time: Provides a fixed reset delay time of 200 ms to ensure stable conditions before releasing reset.
5. Push-Pull Active Low Output: Simplifies interfacing with other components in a system.
6. Wide Operating Temperature Range: Suitable for temperatures from -40°C to 85°C, making it reliable in various environments.
7. Small Package Size: Offered in a compact SOT-23 package for space-constrained designs.
These features make the TPS3839K33DBZR suitable for use in a variety of electronic systems, including computers, automotive applications, and industrial equipment, where precise voltage supervision is essential.
1. Low Supply Current: Consumes minimal power, ideal for battery-operated devices.
2. Precision Monitoring: Monitors a 3.3V supply voltage with high accuracy.
3. Manual Reset Input: Allows external control over the reset state.
4. Fixed Delay Time: Provides a fixed reset delay time of 200 ms to ensure stable conditions before releasing reset.
5. Push-Pull Active Low Output: Simplifies interfacing with other components in a system.
6. Wide Operating Temperature Range: Suitable for temperatures from -40°C to 85°C, making it reliable in various environments.
7. Small Package Size: Offered in a compact SOT-23 package for space-constrained designs.
These features make the TPS3839K33DBZR suitable for use in a variety of electronic systems, including computers, automotive applications, and industrial equipment, where precise voltage supervision is essential.
Pinout
The TPS3839K33DBZR is a voltage supervisor IC manufactured by Texas Instruments. It is designed to monitor the supply voltage in microprocessor systems and initiate a reset when the voltage drops below a specified threshold.
- Pin Count: The device comes in a 3-pin SOT-23 package.
- Pin Functions:
1. VDD: This is the supply voltage pin, where the monitored voltage is connected. It is used to power the IC.
2. GND: The ground pin, which serves as the common ground reference for the device.
3. RESET: This is the output pin. It is an active-low, open-drain output that goes low when VDD falls below the threshold voltage, signaling the need for a system reset. The RESET pin remains low for a predetermined delay time after the voltage returns to a safe level.
The TPS3839K33DBZR is specifically configured to monitor a 3.3V supply voltage with a typical threshold of 2.93V, providing a critical function in maintaining system stability and reliability by ensuring proper operation under brownout conditions.
- Pin Count: The device comes in a 3-pin SOT-23 package.
- Pin Functions:
1. VDD: This is the supply voltage pin, where the monitored voltage is connected. It is used to power the IC.
2. GND: The ground pin, which serves as the common ground reference for the device.
3. RESET: This is the output pin. It is an active-low, open-drain output that goes low when VDD falls below the threshold voltage, signaling the need for a system reset. The RESET pin remains low for a predetermined delay time after the voltage returns to a safe level.
The TPS3839K33DBZR is specifically configured to monitor a 3.3V supply voltage with a typical threshold of 2.93V, providing a critical function in maintaining system stability and reliability by ensuring proper operation under brownout conditions.
Manufacturer
The TPS3839K33DBZR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and produces a wide range of electronic components, including integrated circuits and microcontrollers. The company is known for its innovation in analog and embedded processing products, which are used in various electronic devices and systems across multiple industries, such as automotive, industrial, consumer electronics, and communications equipment. TI is one of the leading companies in the semiconductor industry, recognized for its extensive portfolio of products and commitment to advancing technology.
Application
The TPS3839K33DBZR is a voltage supervisor IC designed for monitoring supply voltages in a variety of applications. Key application areas include microcontroller and microprocessor systems, battery-powered devices, embedded systems, industrial control systems, and portable electronics. Its primary function is to ensure system reliability by monitoring the supply voltage and providing a reset signal when the voltage falls below a specified threshold. This is crucial for preventing data corruption and ensuring proper startup and operation of digital circuits. Its compact size and low power consumption make it ideal for space-constrained and energy-sensitive applications.
Package
The TPS3839K33DBZR is a voltage supervisory circuit from Texas Instruments, and it comes in a SOT-23-3 package type.
