TPS3705-50DGNR
Product Overview
Category
The TPS3705-50DGNR belongs to the category of voltage supervisors.
Use
It is primarily used for monitoring and supervising voltage levels in electronic systems.
Characteristics
- Voltage threshold: 5.0V
- Accuracy: ±1%
- Supply voltage range: 2.7V to 18V
- Low quiescent current: 10µA (typical)
- Adjustable delay time
- Open-drain output
- Wide temperature range: -40°C to +125°C
Package
The TPS3705-50DGNR comes in a small 8-pin MSOP package.
Essence
This voltage supervisor IC ensures reliable power supply management by monitoring the input voltage and generating an output signal when it falls below or exceeds a predefined threshold.
Packaging/Quantity
The TPS3705-50DGNR is typically available in reels, with 2500 units per reel.
Specifications
- Input voltage range: 2.7V to 18V
- Threshold voltage: 5.0V
- Hysteresis voltage: 100mV
- Quiescent current: 10µA (typical)
- Delay time: Adjustable from 1ms to 100ms
- Output type: Open-drain
- Operating temperature range: -40°C to +125°C
Detailed Pin Configuration
The TPS3705-50DGNR has the following pin configuration:
- GND (Ground)
- VDD (Supply voltage)
- MR (Manual reset input)
- TH (Threshold voltage input)
- TR (Delay time adjustment resistor)
- CT (Delay capacitor)
- OUT (Output)
- NC (No connection)
Functional Features
- Voltage monitoring: The TPS3705-50DGNR continuously monitors the input voltage and compares it with the threshold voltage.
- Output signal generation: When the input voltage falls below or exceeds the threshold, the IC generates an output signal on the OUT pin.
- Adjustable delay time: The delay time for the output signal can be adjusted using an external resistor and capacitor.
- Manual reset: The MR pin allows for manual reset of the device.
Advantages and Disadvantages
Advantages
- Wide supply voltage range allows for versatile applications.
- Low quiescent current minimizes power consumption.
- Adjustable delay time provides flexibility in system design.
- Open-drain output simplifies interfacing with other devices.
Disadvantages
- Limited to a single threshold voltage (5.0V).
- No built-in overvoltage protection feature.
Working Principles
The TPS3705-50DGNR operates by comparing the input voltage with the threshold voltage set by the TH pin. If the input voltage falls below the threshold, the output pin goes low, indicating an undervoltage condition. Conversely, if the input voltage exceeds the threshold, the output pin goes high, indicating an overvoltage condition. The delay time for the output signal can be adjusted using an external resistor and capacitor connected to the TR and CT pins, respectively.
Detailed Application Field Plans
The TPS3705-50DGNR finds applications in various electronic systems that require reliable voltage monitoring and supervision. Some potential application fields include:
- Power supply units: Ensuring stable voltage levels in power supplies.
- Battery-powered devices: Monitoring battery voltage to prevent over-discharge.
- Industrial control systems: Protecting sensitive components from voltage fluctuations.
- Automotive electronics: Supervising voltage levels in automotive systems.
- Home automation: Monitoring power supply integrity in smart home devices.
Detailed and Complete Alternative Models
- TPS3705-33DGNR: Similar to TPS3705-50DGNR, but with a threshold voltage of 3.3V.
- TPS3705-25DGNR: Similar to TPS3705-50DGNR, but with a threshold voltage of 2.5V.
- TPS3705-15DGNR: Similar to TPS3705-50DGNR, but with a threshold voltage of 1.5V.
- TPS3705-12DGNR: Similar to TPS3705-50DGNR, but with a threshold voltage of 1.2V.
These alternative models provide options for different voltage threshold requirements in various applications.
(Note: The content provided above is approximately 400 words. Additional information can be added to meet the required word count of 1100 words.)
10 pirs û bersivên hevpar ên têkildarî sepana TPS3705-50DGNR di çareseriyên teknîkî de navnîş bikin
Sure! Here are 10 common questions and answers related to the application of TPS3705-50DGNR in technical solutions:
Q: What is TPS3705-50DGNR? A: TPS3705-50DGNR is a voltage supervisor and reset IC manufactured by Texas Instruments.
Q: What is the purpose of TPS3705-50DGNR? A: TPS3705-50DGNR is designed to monitor the voltage level of a system and provide a reset signal when the voltage falls below a certain threshold.
Q: What is the operating voltage range of TPS3705-50DGNR? A: The operating voltage range of TPS3705-50DGNR is typically between 1.8V and 6V.
Q: How does TPS3705-50DGNR detect undervoltage conditions? A: TPS3705-50DGNR uses an internal voltage reference and a comparator to monitor the input voltage and compare it with a preset threshold.
Q: Can TPS3705-50DGNR be used for overvoltage protection as well? A: No, TPS3705-50DGNR is specifically designed for undervoltage detection and does not provide overvoltage protection.
Q: What is the typical reset time delay of TPS3705-50DGNR? A: The typical reset time delay of TPS3705-50DGNR is around 50ms.
Q: Can TPS3705-50DGNR be used in battery-powered applications? A: Yes, TPS3705-50DGNR can be used in battery-powered applications as it operates within a wide voltage range and has low quiescent current.
Q: Does TPS3705-50DGNR have any built-in hysteresis? A: Yes, TPS3705-50DGNR has a built-in hysteresis of typically 50mV to prevent oscillations near the threshold voltage.
Q: Can TPS3705-50DGNR be used in automotive applications? A: Yes, TPS3705-50DGNR is suitable for automotive applications as it meets the necessary requirements such as AEC-Q100 Grade 1 qualification.
Q: What package does TPS3705-50DGNR come in? A: TPS3705-50DGNR is available in an 8-pin MSOP (DGN) package.
Please note that the answers provided here are general and may vary depending on the specific datasheet and application requirements.