RT9505GQW

Overview

The RT9505GQW is a single-cell lithium-ion battery charger IC manufactured by Richtek USA Inc. It utilizes a 10-WFDFN (3x3) package with an exposed pad for thermal dissipation. The device supports input voltages up to 14V and operates within a temperature range of -40°C to 85°C. Designed for portable applications, it integrates programmable charging current control and includes protection features such as over-temperature and over-voltage safeguards. The component complies with RoHS3 standards and carries an MSL rating of 3.

Feature Summary

• Supports single-cell lithium-ion and lithium-polymer battery chemistries
• Integrates programmable constant-current charging capability
• Includes hardware-based over-temperature and over-voltage protection mechanisms

Applications

• Portable consumer electronics devices
• Battery-powered handheld equipment
• IoT sensor nodes requiring single-cell power management

Procurement Notes

Verify the specific suffix GQW against the manufacturer's official datasheet to confirm pinout and thermal pad configuration. Ensure the ordering quantity aligns with standard packaging formats provided by authorized distributors. Confirm RoHS3 compliance status if required by your assembly specifications. Cross-reference the part number with the latest Richtek documentation to avoid obsolete variants.

Selection Notes

Select this component when designing systems requiring a compact, single-cell Li-Ion charging solution with integrated protection. The 10-WFDFN package suits space-constrained PCB layouts. Consider the 14V maximum input voltage limit during power supply design. Evaluate thermal performance requirements given the exposed pad design for heat dissipation in enclosed enclosures.

Part Context

This part belongs to Richtek's battery management portfolio, specifically targeting single-cell charging applications. It complements other PMIC solutions like the RT9465 series but offers a distinct 10-pin form factor compared to larger packages. The product line focuses on high integration and safety features for mobile and portable device markets.

Replacement Considerations

Check for direct substitutes within the RT95xx series or similar 10-WFDFN chargers from Richtek. Verify pin compatibility and electrical parameters before substitution. No officially confirmed substitute part numbers are listed in the provided source material.