Product details


Operating Vin (Max) (V) 10 Absolute Vin (safety rating) (Max) ((V)) 20 Operating Vin (Min) (V) 4 Rating Catalog open-in-new Find other Battery charger ICs

Package | Pins | Size

DSBGA (YFP) 28 0 mm² 1.922 x 3.046 VQFN (RHL) 20 16 mm² 4.5 x 3.5 open-in-new Find other Battery charger ICs


  • Integrated Wireless Power Supply Receiver Solution
    • 93% Overall peak AC-DC efficiency
    • Full synchronous rectifier
    • WPC v1.2 compliant communication control
    • Output voltage conditioning
    • Only IC required between Rx coil and output
  • Wireless power consortium (WPC) v1.2 compliant (FOD enabled) highly accurate current sense
  • Dynamic rectifier control for improved load transient response
  • Dynamic efficiency scaling for optimized performance over wide range of output power
  • Adaptive communication limit for robust communication
  • Supports 20-V maximum input
  • Low-power dissipative rectifier overvoltage clamp (VOVP = 15 V)
  • Thermal shutdown
  • Multifunction NTC and control pin for temperature monitoring, charge complete, and fault host control
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The BQ51013B device is a single-chip, advanced, flexible, secondary-side device for wireless power transfer in portable applications capable of providing up to 5 W. The BQ51013B devices provide the receiver (RX) AC-to-DC power conversion and regulation while integrating the digital control required to comply with the Wireless Power Consortium (WPC) Qi v1.2 communication protocol. Together with the BQ50012A primary-side controller (or other Qi transmitter), the BQ51013B enables a complete contactless power transfer system for a wireless power supply solution. Global feedback is established from the secondary to the primary to control the power transfer process using the Qi v1.2 protocol.

The BQ51013B integrates a low-resistance synchronous rectifier, low-dropout regulator (LDO), digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation.

The BQ51013B also includes a digital controller that calculates the amount of power received by the mobile device within the limits set by the WPC v1.2 standard. The controller then communicates this information to the transmitter (TX) to allow the TX to determine if a foreign object is present within the magnetic interface and introduces a higher level of safety within magnetic field. This Foreign Object Detection (FOD) method is part of the requirements under the WPC v1.2 specification.

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Technical documentation

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Type Title Date
* Data sheet BQ51013B Highly Integrated Wireless Receiver Qi (WPC v1.2) Compliant Power Suppl datasheet (Rev. D) Sep. 22, 2020
Technical article When to use rechargeable batteries in small battery applications Oct. 01, 2019
Technical article Wireless power during the zombie apocalypse Oct. 28, 2016
Technical article Should I use a linear charger or a switching charger? Oct. 31, 2015
More literature Battery Management Solutions for Wearable and Fitness Devices (Rev. C) Aug. 18, 2014
Application note Test and Troubleshoot a Wireless Power Receiver Aug. 06, 2014
Technical article Summertime and the livin' is easy Jun. 20, 2014
User guide bq51013xEVM-764 Evaluation Module (WCSP Package) (Rev. A) Aug. 05, 2013

Design & development

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Design tools & simulation

SLUC577A.ZIP (60490 KB)
SLUC632.ZIP (622 KB)

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DSBGA (YFP) 28 View options
VQFN (RHL) 20 View options

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