• Menu
  • Product
  • Email
  • PDF
  • Order now

  • bq51010B Highly Integrated Wireless Receiver Qi (WPC v1.1) Compliant Power Supply

    • SLUSBB8A December   2012  – June 2016

      PRODUCTION DATA.  

  • CONTENTS
  • SEARCH
  • bq51010B Highly Integrated Wireless Receiver Qi (WPC v1.1) Compliant Power Supply
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Tables
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
      1. 8.1.1 A Brief Description of the Wireless System
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Qi Wireless Power System and bq51010B Power Transfer Flow Diagrams
      2. 8.3.2  Dynamic Rectifier Control
      3. 8.3.3  Dynamic Efficiency Scaling
      4. 8.3.4  RILIM Calculations
      5. 8.3.5  Input Overvoltage
      6. 8.3.6  Adapter Enable Functionality and EN1 or EN2 Control
      7. 8.3.7  End Power Transfer Packet (WPC Header 0x02)
      8. 8.3.8  Status Outputs
      9. 8.3.9  WPC Communication Scheme
      10. 8.3.10 Communication Modulator
      11. 8.3.11 Adaptive Communication Limit
      12. 8.3.12 Synchronous Rectification
      13. 8.3.13 Temperature Sense Resistor Network (TS)
      14. 8.3.14 3-State Driver Recommendations For the TS-CTRL Pin
      15. 8.3.15 Thermal Protection
      16. 8.3.16 WPC 1.1 Compliance - Foreign Object Detection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 bq51010B Wireless Power Receiver Used as a Power Supply
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Using the bq51010B as a Wireless Power Supply
          2. 9.2.1.2.2 Series and Parallel Resonant Capacitor Selection
          3. 9.2.1.2.3 COMM, CLAMP, and BOOT Capacitors
          4. 9.2.1.2.4 Control Pins and WPG
          5. 9.2.1.2.5 Current Limit and FOD
          6. 9.2.1.2.6 RECT and OUT Capacitance
        3. 9.2.1.3 Application Curves
      2. 9.2.2 Dual Power Path: Wireless Power and DC Input
        1. 9.2.2.1 Design Requirements
        2. 9.2.2.2 Detailed Design Procedure
        3. 9.2.2.3 Application Curves
      3. 9.2.3 Wireless and Direct Charging of a Li-Ion Battery at 800 mA
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information
  14. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • YFP|28
    • MXBG159A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
  • slusbb8a_oa
  • slusbb8a_pm
search No matches found.
  • Full reading width
    • Full reading width
    • Comfortable reading width
    • Expanded reading width
  • Card for each section
  • Card with all content

 

DATA SHEET

bq51010B Highly Integrated Wireless Receiver Qi (WPC v1.1) Compliant Power Supply

1 Features

  • Integrated Wireless Power Supply Receiver Solution With a 7-V Regulated Supply
    • 93% Overall Peak AC-DC Efficiency
    • Full Synchronous Rectifier
    • WPC v1.1 Compliant Communication Control
    • Output Voltage Conditioning
    • Only IC Required Between RX Coil and 7-V Output
  • WPC v1.1 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

2 Applications

  • WPC v1.1 Compliant Receivers
  • Cell Phones and Smart Phones
  • Headsets
  • Digital Cameras
  • Portable Media Players
  • Hand-Held Devices

3 Description

The bq51010B is a family of advanced, flexible, secondary-side devices for wireless power transfer in portable applications. The bq51010B devices provide the AC-DC power conversion and regulation while integrating the digital control required to comply with the Qi v1.1 communication protocol. Together with the bq50xxx primary-side controller, the bq51010B enables a complete contact-less 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 v1.1 protocol.

The bq51010B devices integrate a low resistance synchronous rectifier, low-dropout regulator, digital control, and accurate voltage and current loops to ensure high efficiency and low power dissipation.

The bq51010B also includes a digital controller that can calculate the amount of power received by the mobile device within the limits set by the WPC v1.1 standard. The controller will then communicate this information to the transmitter to allow the transmitter 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 v1.1 specification.

Device Information (1)

PART NUMBER PACKAGE BODY SIZE (NOM)
bq51010B DSBGA (28) 1.90 mm × 3.00 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Wireless Power Consortium (WPC or Qi) Inductive Power System

bq51010B fig1_lusay6.gif

4 Revision History

Changes from * Revision (December 2012) to A Revision

  • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information sectionGo
  • Removed Package Summary, see POA at the end of the data sheetGo

5 Device Comparison Tables

DEVICE FUNCTION VOUT (VBAT-REG) PROTOCOL MAXIMUM POUT I2C
bq51003 Wireless receiver 5 V Qi v1.1 2.5 W No
bq51013B Wireless receiver 5 V Qi v1.1 5 W No
bq51010B Wireless receiver 7 V Qi v1.1 5 W No
bq51020 Wireless receiver 4.5 to 8 V Qi v1.1 5 W No
bq51021 Wireless receiver 4.5 to 8 V Qi v1.1 5 W Yes
bq51221 Dual mode wireless receiver 4.5 to 8 V Qi v1.1, PMA 5 W Yes
bq51025 Wireless receiver 4.5 to 10 V Qi v1.1 (in 5 W mode) 10 W Yes
bq51020B Wireless receiver and direct charger 4.2 V Qi v1.1 5 W No
bq51051B Wireless receiver and direct charger 4.35 V Qi v1.1 5 W No
bq51052B Wireless receiver and direct charger 4.4 V Qi v1.1 5 W No

Table 1. Device Options

DEVICE FUNCTION WPC VERSION VRECT-OVP VOUT-(REG) OVER CURRENT SHUTDOWN AD-OVP TERMINATION COMMUNICATION CURRENT LIMIT(1)(2)
bq51010B 7-V power supply v1.1 15 V 7 V Disabled Disabled Disabled Adaptive + 1s Hold-Off
(1) Enabled if EN2 is low and disabled if EN2 is high
(2) Communication current limit is disabled for 1 second at start-up

6 Pin Configuration and Functions

YFP Package
28-Pin DSBGA
Top View
bq51010B YFP_pinout_lusbb8.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
AC1 B3, B4 I AC input from receiver coil antenna.
AC2 B1, B2 I
AD G4 I Connect this pin to the wired adapter input. When a voltage is applied to this pin wireless charging is disabled and AD_EN is driven low. Connect to GND through a 1-µF capacitor. If unused, capacitor is not required and must be grounded directly.
AD-EN F3 O Push-pull driver for external PFET connecting AD and OUT. This node is pulled to the higher of OUT and AD when turning off the external FET. This voltage tracks approximately 4 V below AD when voltage is present at AD and provides a regulated VSG bias for the external FET. Float this pin if unused.
BOOT1 C4 O Bootstrap capacitors for driving the high-side FETs of the synchronous rectifier. Connect a 10-nF ceramic capacitor from BOOT1 to AC1 and from BOOT2 to AC2.
BOOT2 C1 O
CLMP1 E3 O Open drain FETs are used for a non-power dissipative overvoltage AC clamp protection. When the RECT voltage goes above 15 V, both switches is turned on and the capacitors acts as a low impedance to protect the IC from damage. If used, Clamp1 is required to be connected to AC1, and Clamp2 is required to be connected to AC2 through 0.47-µF capacitors.
CLMP2 E2 O
COM1 E4 O Open-drain output used to communicate with primary by varying reflected impedance. Connect through a capacitor to either AC1 or AC2 for capacitive load modulation (COM2 must be connected to the alternate AC1 or AC2 pin). For resistive modulation connect COM1 and COM2 to RECT through a single resistor; connect through separate capacitors for capacitive load modulation.
COM2 E1 O
EN1 G3 I Inputs that allow user to enable or disable wireless and wired charging <EN1 EN2>:
<00> wireless charging is enabled unless AD voltage > 3.6 V
<01> Dynamic communication current limit disabled
<10> AD-EN pulled low, wireless charging disabled
<11> wired and wireless charging disabled.
EN2 G2 I
FOD F2 I Input for the received power measurement. Connect to GND with a 140-Ω resistor. See the FOD section for more detail.
ILIM G1 I/O Programming pin for the over current limit. Connect external resistor to VSS. Size RILIM with the following equation: RILIM = 314 / IMAX where IMAX is the expected maximum output current of the wireless power supply. The hardware current limit (IILIM) is 20% greater than IMAX or 1.2 x 1MAX. If the supply is meant to operate in current limit use:
RILIM = 314 / IILIM, RILIM = R1 + RFOD
OUT D1, D2,
D3, D4		 O Output pin, delivers power to the load.
PGND A1, A2,
A3, A4		 — Power ground
RECT C2, C3 O Filter capacitor for the internal synchronous rectifier. Connect a ceramic capacitor to PGND. Depending on the power levels, the value may be 4.7 μF to 22 μF.
TS/CTRL F1 I Must be connected to ground through a resistor. If an NTC function is not desired connect to GND with a 10-kΩ resistor. As a CTRL pin pull to ground to send end power transfer (EPT) fault to the transmitter or pull-up to an internal rail (that is, 1.8 V) to send EPT termination to the transmitter. Note that a 3-state driver must be used to interface this pin (see the 3-State Driver Recommendations For the TS-CTRL Pin section for further description)
WPG F4 O Open-drain output – Active when the output of the wireless power supply is enabled.

 
Texas Instruments

© Copyright 1995-2025 Texas Instruments Incorporated. All rights reserved.
Submit documentation feedback | IMPORTANT NOTICE | Trademarks | Privacy policy | Cookie policy | Terms of use | Terms of sale