BQ51050BRHLR Part Information

Details for BQ51050BRHLR by Texas Instruments

Semiconductors - ICs > Special Function >

Part Description

The bq5105x device is a high-efficiency, Qi-compliant wireless power receiver with an integrated Li-Ion/LiPol battery charge controller for portable applications. The bq5105xB devices provide efficient AC-DC power conversion, integrates the digital controller required to comply with Qi v1.1 communication protocol, and provides all necessary control algorithms needed for efficient and safe Li-Ion and LiPol battery charging. Together with the bq500212A transmitter-side controller, the bq5105x enables a complete wireless power transfer system for direct battery charger solutions. By using 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 to stabilize the power transfer process. This feedback is established by using the Qi v1.1 communication protocol. The bq5105xB devices integrate a low-impedance synchronous rectifier, low-dropout regulator (LDO), digital control, charger controller, and accurate voltage and current loops in a single package. The entire power stage (rectifier and LDO) use lowresistance N-MOSFETs (100-mΩ typical Rdson) to ensure high efficiency and low power dissipation.

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Part Features

  • Available in Small DSGBA and VQFN Packages
  • Compatible With WPC v1.1 Qi Industry Standard
  • Power Stage Output Tracks Rectifier and Battery Voltage to Ensure Maximum Efficiency Across the Full Charge Cycle
  • Robust Architecture u2013 20-V Maximum Input Voltage Tolerance, With Input Overvoltage Protection u2013 Thermal Shutdown and Overcurrent Protection u2013 Temperature Monitoring and Fault Detection
  • Single-Stage Wireless Power Receiver and Li-Ion/Li-Pol Battery Charger u2013 Combines Wireless Power Receiver, Rectifier, and Battery Charger in a Single, Small Package u2013 4.20-V, 4.35-V, and 4.40-V Output Voltage Options u2013 Supports a Charging Current up to 1.5 A u2013 93% Peak AC-DC Charging Efficiency

Part Specifications

Wireless Charging IC Type Receiver
Wireless Power Standard WPC 1.2 Compliant
Power Level -
Operating Temperature Range 0°C to 125°C
IC Package Type VQFN
No. of Pins 20Pins
Product Range -
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
IC Function Battery Charger Wireless Power Receiver
Operating Temperature Max 125°C
Operating Temperature Min 0°C
RoHS Phthalates Compliant Yes
Supply Voltage Max 10V
Supply Voltage Min 4V
RoHS Compliant

Alternative Part Descriptions

  • WIRELESS POWER RECEIVER, VQFN-20; Wireless Charging IC Type:Receiver; Wireless Power Standard:WPC 1.2 Compliant; Power Level:-; Operating Temperature Range:0°C to 125°C; IC Package Type:VQFN; No. of Pins:20Pins; Product Range:-; RoHS Compliant: Yes | Newark Electronics
  • Qi (WPC) Compliant Highly integrated Secondary-Side Direct Lithium Ion charger. | Texas Instruments

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