TL7759CPSR
Product Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Supervisor
- Characteristics: Low Power, Precision Monitoring, Adjustable Thresholds
- Package: 8-pin SOIC (Small Outline Integrated Circuit)
- Essence: Provides voltage monitoring and reset generation functions
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 1.2V to 6.5V
- Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
- Reset Timeout Period: Adjustable from 1ms to 640ms
- Operating Temperature Range: -40°C to +85°C
- Quiescent Current: 10µA (typical)
Pin Configuration
The TL7759CPSR has the following pin configuration:
```
| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH VCC |-- Pin 3: Supply Voltage (VCC) --| TRIP GND |-- Pin 4: Ground (GND) --| GND GND |-- Pin 5: Ground (GND) --| VCC GND |-- Pin 6: Ground (GND) --| RESET GND |-- Pin 7: Ground (GND) --| GND GND |-- Pin 8: Ground (GND) |___________| ```
Functional Features
- Monitors the supply voltage and generates a reset signal when it falls below a specified threshold.
- Adjustable threshold voltage options allow flexibility in different applications.
- Reset timeout period can be adjusted to meet specific system requirements.
- Low quiescent current consumption ensures minimal power usage.
Advantages and Disadvantages
Advantages: - Precise voltage monitoring helps prevent system malfunctions due to low supply voltage. - Adjustable threshold options cater to various voltage level requirements. - Low power consumption extends battery life in portable devices. - Compact 8-pin SOIC package saves board space.
Disadvantages: - Limited to voltage monitoring and reset generation functions only. - Not suitable for applications requiring complex supervisory features.
Working Principles
The TL7759CPSR operates by continuously monitoring the supply voltage. When the voltage falls below the set threshold, the reset output is activated, indicating a power failure or an out-of-range condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.
Detailed Application Field Plans
The TL7759CPSR finds applications in various fields, including:
- Embedded Systems: Provides reliable power-on reset functionality for microcontrollers and other digital ICs.
- Industrial Automation: Ensures proper operation of control systems by monitoring supply voltage levels.
- Telecommunications: Protects sensitive circuitry from voltage fluctuations, preventing data corruption.
- Consumer Electronics: Enhances the reliability of electronic devices by resetting them during power disturbances.
- Automotive: Monitors automotive electronics to ensure safe and reliable operation.
Detailed and Complete Alternative Models
- TL7705ACP: Similar voltage supervisor IC with fixed 4.55V threshold and adjustable reset timeout.
- MAX809: Voltage supervisor IC with adjustable threshold and reset timeout, available in various package options.
- ADM6315: Precision voltage monitor with adjustable threshold and reset timeout, designed for low-power applications.
These alternative models offer similar functionality to the TL7759CPSR and can be considered based on specific requirements.
Word count: 410 words
רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של TL7759CPSR בפתרונות טכניים
Sure! Here are 10 common questions and answers related to the application of TL7759CPSR in technical solutions:
Q: What is TL7759CPSR? A: TL7759CPSR is a voltage supervisor and watchdog timer IC (integrated circuit) commonly used in technical solutions to monitor power supply voltages and provide reset signals.
Q: What are the key features of TL7759CPSR? A: TL7759CPSR features include undervoltage detection, adjustable threshold voltage, watchdog timer functionality, manual reset input, and low power consumption.
Q: How does TL7759CPSR help in technical solutions? A: TL7759CPSR ensures stable operation by monitoring power supply voltages and generating reset signals when the voltage falls below a certain threshold or when a watchdog timer timeout occurs.
Q: Can TL7759CPSR be used with different power supply voltages? A: Yes, TL7759CPSR supports a wide range of power supply voltages, typically from 2.5V to 18V, making it suitable for various applications.
Q: How can I adjust the threshold voltage of TL7759CPSR? A: The threshold voltage of TL7759CPSR can be adjusted using external resistors connected to the VIT+ and VIT- pins, allowing customization based on specific requirements.
Q: Does TL7759CPSR have any built-in delay for reset signals? A: Yes, TL7759CPSR provides an adjustable reset delay feature that allows users to set a delay time before the reset signal is generated after the voltage crosses the threshold.
Q: Can TL7759CPSR generate both active-high and active-low reset signals? A: Yes, TL7759CPSR offers options for both active-high and active-low reset outputs, providing flexibility in connecting to different microcontrollers or system components.
Q: What is the purpose of the watchdog timer in TL7759CPSR? A: The watchdog timer in TL7759CPSR helps monitor the system's operation by requiring periodic pulses to be fed into the WDI (Watchdog Input) pin; otherwise, a timeout will trigger a reset signal.
Q: Is TL7759CPSR suitable for battery-powered applications? A: Yes, TL7759CPSR has low quiescent current consumption, making it suitable for battery-powered applications where power efficiency is crucial.
Q: Are there any application notes or reference designs available for TL7759CPSR? A: Yes, Texas Instruments provides application notes and reference designs that offer guidance on using TL7759CPSR effectively in various technical solutions. These resources can be found on their website or obtained from their technical support team.
Please note that the answers provided here are general and may vary depending on specific use cases and requirements. It is always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.