1 Features

• Integrated wireless power supply receiver solution

– 93% overall peak AC-DC efficiency

– Full synchronous rectifier

– WPC v2.0 compliant communication control

– Output voltage conditioning

– Only IC required between Rx coil and output

• Wireless power consortium (WPC) v2.0 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 20V maximum input

• Low-power dissipative rectifier overvoltage clamp

(VOVP = 15V)

• Thermal shutdown

• Multifunction NTC and control pin for temperature

monitoring, charge complete, and fault host control

2 Applications

• WPC v2.0 compliant receivers

• Ultrasound smart probe

• Headsets/headphones & earbuds

• Cell phones and smart phones

• Headsets

• Handheld devices

3 Description

The BQ51013C device is a single-chip, advanced,

flexible, secondary-side device for wireless power

transfer in portable applications capable of providing

up to 5W. The BQ51013C 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 v2.0 communication protocol. Together

with the BQ500212A primary-side controller (or other

Qi transmitter), the BQ51013C 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 v2.0 protocol.

The BQ51013C 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.