RT9490WSC

Overview

The RT9490WSC is a switching battery charger designed for lithium-ion and lithium-polymer batteries. It supports 1 to 4 cell configurations with a maximum output current of 5A and an output voltage of 5V. The device operates from a power supply voltage range of 3.6V to 24V. It utilizes a WLCSP-56 package suitable for surface mount technology. The component functions as a buck-boost converter, allowing efficient charging across varying input conditions.

Feature Summary

• Supports 1 to 4 cell battery configurations
• Integrates NVDC (Non-Volatile Data Center) architecture for seamless power path management
• Includes programmable charge current and termination voltage settings
• Features integrated thermal regulation and safety protection mechanisms

Applications

• Smartphones and mobile phones
• Tablets and portable computing devices
• Wearable electronics
• Portable medical devices

Procurement Notes

Verify the specific suffix 'WSC' against the manufacturer's official datasheet to confirm pinout compatibility and package dimensions. Ensure the selected variant matches the required input voltage range and cell count for your specific design. Cross-reference the RoHS status and environmental compliance declarations prior to finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring high-current charging for multi-cell lithium batteries in compact form factors. The WLCSP-56 package offers a small footprint ideal for space-constrained handheld devices. Consider the operating temperature range of -40°C to +85°C for industrial or automotive environments if applicable.

Part Context

Richtek Technology specializes in power management integrated circuits for consumer electronics and industrial applications. The RT9490 series addresses the demand for efficient, high-density battery charging solutions in modern portable devices. This part belongs to a family of chargers optimized for single and multi-cell lithium-based battery technologies.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult Richtek's official cross-reference tools or datasheets for potential equivalents.