BQ51050B Datasheet – Power Receiver and Battery Charger

Posted on March 18, 2021March 20, 2021 by pinout

Part Number: BQ51050B

Function: High-Efficiency Qi v1.1-Compliant Wireless Power Receiver and Battery Charger

Package: VQFN (20), DSBGA (28) Type

Pinouts:

BQ51050B datasheet

Description

The bq5105x, BQ51050B is a high efficiency, wireless power receiver with Li-Ion/Li-Pol battery charge controller for portable applications. The bq5105x device provides efficient AC/DC power conversion, integrates digital controller required to comply with Qi v1.1 communication protocol and all necessary control algorithms needed for efficient and safe Li-Ion and Li-Pol battery charger. Together with bq500210 transmitter-side controller, the bq5105x enables a complete wireless power transfer system for direct battery charger solution. By utilizing near-field inductive power transfer, the receiver coil embedded in the portable device can pick up the power transmitted by transmitter coil. The AC signal from the receiver coil is then rectified and conditioned to apply power directly to the battery. Global feedback is established from the receiver to the transmitter in order to stabilize the power transfer process. This feedback is established by utilizing the Qi v1.1 communication protocol.

Applications

• Battery Packs
• Cell Phones and Smart Phones
• Headsets
• Portable Media Players
• Other Handheld Devices

Other data sheets are available within the file:

BQ51050BRHLR, BQ51050BRHLT, BQ51050BYFPR, BQ51050BYFPT

BQ51050B Datasheet PDF Download

BQ25A Equivalent – Battery SMBus Charge Controller – TI

Posted on January 18, 2021 by pinout

Part Number: BQ24725A, Marking : BQ25A

Description

1-4 Cell Li+ Battery SMBus Charge Controller

Package: 20-pin 3.5 × 3.5 mm² VQFN Type

Manufacturer: Texas Instruments

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Description

The bq24725A ( Marking : BQ25A ) is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications.

The bq24725A utilizes two charge pumps to separately drive n-channel MOSFETs (ACFET, RBFET and BATFET) for automatic system power source selection.

SMBus controlled input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller.

The bq24725A uses internal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current.

Pinout

Features