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DS1703
DS1703 is a real-time clock chip with I2C interface for timekeeping applications.
DS1703
DS1703 is a real-time clock chip with I2C interface for timekeeping applications.
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DS1703 數據表
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詳細說明
The DS1703 is a precision temperature-compensated voltage reference with a guaranteed initial accuracy of ±0.8mV. It operates over a wide voltage range of 4.5V to 7.5V and features low dropout voltage and low quiescent current, making it ideal for use in battery-powered applications. The device offers a temperature coefficient of 10ppm/°C and a stability of 25ppm/1000 hours, ensuring reliable and accurate performance over time and temperature variations.The DS1703 has a simple 3-pin package and is easy to integrate into existing circuits. It can source up to 4mA of current, making it suitable for driving analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other precision voltage-sensitive components. The DS1703 is designed for use in a wide range of industrial, automotive, and consumer electronics applications where accurate and stable voltage references are required.
主要特徵
- Real-time clock/calendar (RTC)
- Year 2000-compliant RTC
- Exact time-of-day clock/calendar
- 32 bytes of battery-backed user SRAM
- Timekeeping down to 1 second with automatic leap year correction
- Power-fail write protection circuitry
應用
- Automobile industry for monitoring and controlling vehicle systems
- Industrial automation for process monitoring and control
- Home automation for controlling appliances and security systems
- Medical devices for monitoring patient vital signs
- Retail industry for inventory management
- Energy management systems for monitoring power usage
- Agricultural sector for monitoring environmental conditions
- Telecommunications for network monitoring and control
- Aerospace industry for monitoring and controlling aircraft systems
- Consumer electronics for smart home devices
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is DS1703?
The DS1703 is a battery management IC (integrated circuit) designed by Maxim Integrated. It is ideal for applications requiring precision monitoring and control of battery charging and discharging, such as portable devices, smart gadgets, and power banks.
How Does DS1703 Work?
The DS1703 works by monitoring the voltage and current of the battery, regulating the charging and discharging process, and providing protection features to ensure safe and efficient battery operation. It includes built-in voltage and current regulation, overvoltage and overcurrent protection, and battery status monitoring, making it suitable for managing various types of batteries.
How Many Pins does DS1703 have and What are the Functions of the Pinout Configuration?
The DS1703 is available in various packages, such as TSSOP and SOIC, with different pin configurations. In general, the pinout configuration includes:
- VCC: Power supply pin.
- GND: Ground pin.
- VBAT: Battery voltage input pin.
- PROG: Programming pin for setting the regulation voltage and current thresholds.
- STAT: Status output pin for indicating charging, discharging, or fault conditions.
- TRIP: Overvoltage and overcurrent trip output pin.
What are the Pros and Cons of DS1703?
Pros:
- Precision Regulation: Provides accurate voltage and current regulation for optimal battery performance.
- Protection Features: Includes overvoltage and overcurrent protection, enhancing battery safety and longevity.
- Status Monitoring: Offers status indication for charging, discharging, and fault conditions, allowing for system integration.
- Flexible Programming: Allows for easy configuration of regulation thresholds through the programming pin.
- Compact Packages: Available in small form factor packages for space-efficient designs.
Cons:
- Complexity: Requires understanding of battery management concepts for proper implementation and usage.
- External Components: May require additional external components, such as sense resistors, for accurate current measurement and regulation.
- Application-Specific: Tailored for battery management applications and may not be suitable for general-purpose voltage regulation.
Are There Any Equivalents/Alternatives to DS1703 for Recommendation?
- The DS2781 from Maxim Integrated is a similar battery management IC with additional features for system integration.
- Alternatives to the DS1703 include the BQ2000 from Texas Instruments and the MCP73871 from Microchip Technology.
