RT9465GQW

Overview

The RT9465GQW is a single-cell lithium-ion/polymer battery charger IC manufactured by Richtek USA Inc. It supports a maximum charging current of 3A and operates with a supply voltage up to 14V. The device features an I2C interface for configuration and monitoring. It is housed in a 16-WQFN (3x3) package with exposed pad, suitable for surface mount installation. The component functions within a temperature range of -40°C to 85°C and includes protection against over-temperature and over-voltage conditions.

Feature Summary

• Integrates power path management for simultaneous system power and battery charging
• Supports USB-OTG boost mode for host functionality
• Features programmable constant-current and constant-voltage charging profiles via I2C
• Includes comprehensive safety protections such as thermal regulation and fault detection

Applications

• Smartphones and mobile phones
• Tablets and portable media players
• Personal digital assistants (PDAs)
• Portable medical devices

Procurement Notes

Verify the specific suffix GQW corresponds to the 16-WQFN 3x3 package and standard operating temperature range. Confirm I2C address settings and external component requirements against the official datasheet. Ensure compatibility with the target input voltage source and battery chemistry specifications before integration into the design.

Selection Notes

Select this component for applications requiring high-efficiency single-cell Li-Ion charging with integrated power path management. The I2C interface allows for precise control and monitoring, making it suitable for complex power management systems. Consider the 16-WQFN package size for space-constrained designs requiring robust thermal performance and compact footprint.

Part Context

The RT9465 series belongs to Richtek's portfolio of advanced battery charge controllers designed for consumer electronics. These devices typically integrate switching regulators and linear chargers to optimize efficiency and thermal performance. The GQW variant specifically denotes the WQFN package option, aligning with modern miniaturization trends in portable device manufacturing.

Replacement Considerations

Check for direct pin-to-pin replacements within the RT9465 family or other Richtek single-cell chargers with similar current ratings and I2C interfaces. Verify that any substitute part matches the 16-WQFN package dimensions and electrical characteristics to ensure seamless integration without redesign.