BQ4802YPWR Product Details

Product Specifications

The BQ4802YPWR is a robust Real-Time Clock (RTC) integrated circuit that combines the functionality of precise timekeeping with the added advantage of integrated memory backup. Designed for applications where accuracy, reliability, and low power consumption are paramount, it boasts an array of features to meet the needs of diverse applications. Here are its core specifications:

• Timekeeping Accuracy: Equipped with a precision crystal oscillator, the BQ4802YPWR maintains accurate time and date information.

• Power Supply Voltage: Supports a low power supply voltage range from 3.0V to 3.6V, optimizing it for energy-efficient operations.

• Temperature Range: Operates effectively across a broad temperature range from -40°C to +85°C, suitable for varying environmental conditions.

• Memory Backup: Features integrated battery-backed SRAM for critical data retention during power loss situations.

• Interface: Offers an I²C interface, facilitating straightforward communication with a wide variety of microcontrollers and processors.

• Package Type: Available in a TSSOP package, making it an ideal choice for space-constrained applications.

• Additional Features: Includes functionalities such as automatic power-fail detection, battery switch-over, and a programmable alarm function, enhancing its utility in complex system designs.

Product Introduction

The BQ4802YPWR RTC is engineered to provide dependable timekeeping capabilities alongside crucial data protection through its integrated SRAM, backed by battery support. This device is essential for applications that cannot afford to lose data during power outages, including those that involve critical data logging and time-sensitive operations. With its programmable alarm and low power consumption, the BQ4802YPWR is versatile, supporting a wide array of applications across computing, industrial automation, telecommunications, medical devices, and automotive systems.

Application Scope

This RTC module is ideally suited for a broad spectrum of applications:

• Consumer Electronics: Perfect for smart wearables, home automation gadgets, and personal electronic devices that require precise timing.

• Industrial Automation: Ideal for use in timing operations, data logging within control systems, machinery, and monitoring equipment.

• Automotive Systems: Suitable for in-vehicle electronics, such as navigation systems and event logging, where accurate timekeeping is crucial.

• Telecommunications Equipment: Critical for maintaining precise timekeeping in routers, switches, and network infrastructure for logging and integrity.

• Portable Medical Devices: Essential in medical monitoring devices where accurate timing is vital for data collection and patient care.

Frequently Asked Questions

Q: How does the BQ4802YPWR maintain data integrity during power outages?

A: It automatically transitions to battery backup mode, ensuring uninterrupted clock operations and preserving the contents of the integrated SRAM, thereby maintaining data integrity.

Q: Why is the BQ4802YPWR an excellent choice for battery-operated devices?

A: Its low power consumption and efficient battery backup capability make it highly suitable for battery-operated devices, ensuring extended operational life and reliability.

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

A: Yes, the programmable alarm function can be tailored to trigger specific events or reminders at designated times, providing flexibility in event management and system checks.