BQ4802LYPWG4 Product Details

Product Specifications

The BQ4802LYPWG4 is a feature-rich Real-Time Clock (RTC) integrated circuit designed to provide precise timekeeping, coupled with integrated memory backup functionality. It's engineered to meet the stringent requirements of a vast array of applications that demand accurate time and data preservation. The key specifications of the BQ4802LYPWG4 are:

• Timekeeping Accuracy: Built around a high-accuracy crystal oscillator, ensuring reliable time and date information under various conditions.

• Power Supply Voltage: Supports a flexible power supply voltage range of 2.7V to 5.5V, accommodating diverse system power configurations.

• Temperature Range: Capable of operating across a wide temperature range from -40°C to +85°C, making it suitable for challenging environments.

• Memory Backup: Features integrated battery-backed SRAM for crucial data retention during power losses, ensuring data integrity.

• Interface: Offers an I²C interface, enabling easy integration with a wide variety of microcontrollers and processors.

Package Type: Packaged in a TSSOP package, which is ideal for applications where space is at a premium.

• Additional Features: Equipped with automatic power-fail detection, battery switch-over, and a programmable alarm function to enhance system management and reliability.

Product Introduction

The BQ4802LYPWG4 RTC is designed for applications requiring not only accurate timekeeping but also the need for data preservation during power interruptions. Its low power consumption and wide operating voltage range make it particularly well-suited for battery-operated and portable devices. Additionally, its rugged design ensures reliable operation in industrial, automotive, and telecommunications environments. The integration of a battery-backed SRAM and programmable alarm function further extends its utility, making it a comprehensive solution for sophisticated electronic systems.

Application Scope

This RTC chip is versatile, finding utility in a range of sectors due to its robust features:

• Consumer Electronics: Ideal for smart wearables, home automation systems, and other personal electronic devices that require precise timekeeping.

• Industrial Automation: Perfect for control systems, data loggers, and monitoring equipment in environments that demand consistent operation and data integrity.

• Automotive Systems: Suitable for use in vehicle electronics, such as navigation and event logging systems, where accurate time stamping is essential.

• Telecommunications Equipment: Essential for network infrastructure, including routers and switches, that rely on accurate timekeeping for data logging and integrity.

• Medical Devices: Critical for patient monitoring systems and medical recording devices where precise time tracking is vital for data analysis and patient care.

Frequently Asked Questions

Q: How does the BQ4802LYPWG4 maintain data integrity during power outages?

A: It automatically switches to its battery backup, continuing to power the clock and protect the contents of the integrated SRAM, thereby ensuring continuous operation and data preservation.

Q: What makes the BQ4802LYPWG4 suitable for battery-operated devices?

A: Its energy-efficient design and effective battery backup capability make it highly appropriate for devices that rely on battery power, ensuring extended operational life and reliability.

Q: Can the alarm function be customized for specific requirements?

A: Yes, the programmable alarm function allows for setting specific events or reminders at designated times, enhancing system management and operational efficiency.