BQ500412RGZT

The BQ500412RGZT from Texas Instruments is a Qi-certified wireless power transmitter manager. It integrates all necessary functions to control wireless power delivery to a single WPC1.1 compliant receiver. This device is designed for 12-V systems or 5-V systems with an optional boost converter, functioning as a wireless power consortium type A6 free positioning transmitter.

The BQ500412RGZT manages power transfer according to the WPC1.1 specification, safely engaging devices and receiving packet communication. It supports Dynamic Power Limiting (DPL) for optimized power usage from limited input supplies when used with a 5-V input and an optional boost converter. The device also features Foreign Object Detection (FOD) and enhanced Parasitic Metal Object Detection (PMOD) to protect against power loss due to misplaced metal objects.

This transmitter manager operates within a voltage range of 3V to 3.6V and has an operating temperature range of -40°C to 110°C. It consumes a current of 52mA. The BQ500412RGZT is supplied in a 48-VQFN (7x7) package, suitable for surface mount applications.

Key features include its Qi-certified WPC1.1 compliance, suitability for 1, 2, or 3 coil configurations, and a low device count for a full WPC1.1 12-V A6 solution. It also incorporates a new standby scheme to reduce power consumption and an improved FOD calibration scheme for simplified certification and increased accuracy.