BQ4802YPWRG4 Product Details

Product Specifications

The BQ4802YPWRG4 is a sophisticated Real-Time Clock (RTC) integrated circuit designed to provide precise time and date information across a wide range of applications. This device integrates a multitude of features aimed at maintaining accurate timekeeping and system functionality, even during power outages. Here are the core specifications:

• Timekeeping Accuracy: Features a precision crystal oscillator for maintaining accurate time and date, ensuring reliability in various applications.

• Power Supply Voltage: Operates on a 3.0V to 3.6V supply voltage, making it suitable for systems that require low power consumption.

• Temperature Range: Designed to function reliably within a temperature range of -40°C to +85°C, accommodating diverse environmental conditions.

• Memory: Integrates a battery-backed SRAM for data retention, preserving critical information during power losses.

• Interface: I²C interface for easy integration with a wide range of microcontrollers and processors.

• Package Type: Available in a TSSOP package, providing a compact solution that is beneficial for space-constrained applications.

• Additional Features: Includes automatic power-fail detection, battery switch-over, and a programmable alarm function, enhancing its utility and flexibility in system design.

Product Introduction

The BQ4802YPWRG4 RTC is engineered to meet the demands of modern electronic systems that require accurate, reliable timekeeping, and data integrity. Its low power consumption and wide operating temperature range make it an ideal choice for battery-operated and portable devices, as well as industrial and automotive applications where environmental conditions vary significantly. The integration of a battery-backed SRAM and programmable alarm function offers added value, providing flexibility and reliability for system designers.

Application Scope

This RTC chip is ideally suited for applications in various sectors:

• Consumer Electronics: For use in smart wearables, home automation systems, and personal gadgets requiring precise timekeeping.

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

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

• Telecommunications: Essential for network hardware, such as routers and switches, needing precise timekeeping for logging and operational integrity.

• Portable Medical Devices: For medical devices where accurate timing is critical for data collection and patient monitoring.a

Frequently Asked Questions

Q: How does the BQ4802YPWRG4 ensure data integrity during power outages?

A: It automatically switches to battery backup to maintain clock functionality and protect SRAM contents, ensuring data integrity and continuous operation.

Q: What makes the BQ4802YPWRG4 suitable for battery-operated devices?

A: Its low power consumption and battery backup capability make it highly suitable for battery-operated devices, extending the life of the device and ensuring reliable operation.

Q: Can the alarm function be programmed for specific events?

A: Yes, the programmable alarm function can be set to trigger at specific times, enabling the scheduling of events or system checks without the need for constant processor intervention.