Texas Instruments bq51013 Wireless Power Receiver

Texas Instruments announced the bq51013 receiver integrated circuit (IC) for wireless charging. The TI chip combines voltage conditioning and full wireless power control in a small 1.9-mm x 3-mm WCSP package. The bq51013 wireless power receiver supports up to 5 W of output power, provides up to 93% efficient AC/DC power conversion and is the only IC required between the receiver coil and system. The Qi compliant IC is available now in a 1.9mm x 3mm WCSP package. It is priced at $3.50 (quantities of 1,000).

Texas Instruments (TI) bq51013 receiver integrated circuit (IC) for wireless charging

TI bq51013 Receiver IC Highlights

  • Highly integrated and efficient wireless power receiver IC
  • Includes full-bridge synchronous rectification, voltage conditioning and wireless power control in a single device
  • 1.9mm x 3mm WCSP package for easy integration with minimal size impact
  • Device area is 80% less than TI’s first-generation receiver
  • Wireless Power Consortium (WPC) Qi-compliant
  • Built-in protection against voltage, current and temperature fault conditions
  • 93% peak efficiency
  • Reduces thermal rise inside the system while allowing charge rates comparable to an AC adapter
  • Makes it easy for designers to implement wireless charging in their existing and new designs for portable consumer devices
  • Supports up to 5 W of output power
  • Only IC required between RX coil and 5V DC output voltage
  • Full synchronous rectifier
  • Output voltage conditioning
  • Dynamic rectifier control for improved load transient response
  • Supports 20V max input
  • Low-power dissipative rectifier overvoltage clamp (VOVP = 15V)
  • Thermal shutdown
  • Single NTC/control pin for optimal safety and I/O between host
  • Stand-alone digital controller
  • 1.9 x 3mm WCSP or 4.5 x 3.5mm QFN package

More info: Texas Instruments bq51013 Wireless Power Supply Receiver (pdf)