SLUSFJ0B June   2024  – June 2025 BQ51013C-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Description (continued)
  6. 5 Device Comparison Table
  7. 6 Pin Configuration and Functions
  8. 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
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  Details of a Qi Wireless Power System and BQ51013C-Q1 Power Transfer Flow Diagrams
      2. 8.3.2  RILIM Calculations
      3. 8.3.3  Input Overvoltage
      4. 8.3.4  Adapter Enable Functionality and EN1/EN2 Control
      5. 8.3.5  End Power Transfer Packet (WPC Header 0x02)
      6. 8.3.6  Status Outputs
      7. 8.3.7  WPC Communication Scheme
      8. 8.3.8  Communication Modulator
      9. 8.3.9  Adaptive Communication Limit
      10. 8.3.10 Synchronous Rectification
      11. 8.3.11 Temperature Sense Resistor Network (TS)
      12. 8.3.12 3-State Driver Recommendations for the TS/CTRL Pin
      13. 8.3.13 Thermal Protection
      14. 8.3.14 WPC v1.3 Compliance – Foreign Object Detection
    4. 8.4 Device Functional Modes
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Applications
      1. 9.2.1 BQ51013C-Q1 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 BQ51013C-Q1 as a Wireless Power Supply: (See Figure 1-1 )
          2. 9.2.1.2.2 Series and Parallel Resonant Capacitor Selection
          3. 9.2.1.2.3 Recommended RX Coils
          4. 9.2.1.2.4 COMM, CLAMP, and BOOT Capacitors
          5. 9.2.1.2.5 Control Pins and CHG
          6. 9.2.1.2.6 Current Limit and FOD
          7. 9.2.1.2.7 RECT and OUT Capacitance
      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 400 mA
        1. 9.2.3.1 Design Requirements
        2. 9.2.3.2 Detailed Design Procedure
        3. 9.2.3.3 Application Curves
  11. 10Power Supply Recommendations
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
      2. 12.1.2 Development Support
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  14. 13Revision History
  15. 14Mechanical, Packaging, and Orderable Information

7.6 Typical Characteristics

BQ51013C-Q1 Rectifier Efficiency
Input: RX AC power Output: RX RECT power
Efficiency: Output Power / Input Power
Figure 7-1 Rectifier Efficiency
BQ51013C-Q1 Impact of Load Current on Output Voltage
Maximum Current = 1 A
Figure 7-3 Impact of Load Current on Output Voltage
BQ51013C-Q1 VOUT vs Temperature
Figure 7-5 VOUT vs Temperature
BQ51013C-Q1 Rectifier Overvoltage Clamp (fop = 110 kHz)
Figure 7-7 Rectifier Overvoltage Clamp (fop = 110 kHz)
BQ51013C-Q1 Adapter Insertion (VAD = 10 V)
Figure 7-9 Adapter Insertion (VAD = 10 V)
BQ51013C-Q1 On-the-Go Enabled (VOTG = 3.5 V) (2)
Figure 7-11 On-the-Go Enabled (VOTG = 3.5 V) (2)
BQ51013C-Q1 Adaptive Communication Limit Event Where the 400-mA Current Limit is Enabled (IOUT-DC < 300 mA)
Figure 7-13 Adaptive Communication Limit Event Where the 400-mA Current Limit is Enabled (IOUT-DC < 300 mA)
BQ51013C-Q1 RX Communication Packet Structure
Figure 7-15 RX Communication Packet Structure
BQ51013C-Q1 System Efficiency From DC Input to DC Output
Input: TX DC power Output: RX RECT power
Efficiency: Output Power / Input Power
Figure 7-2 System Efficiency From DC Input to DC Output
BQ51013C-Q1 Impact of Load Current on Output Ripple
COUT = 1 µf Without Communication
Figure 7-4 Impact of Load Current on Output Ripple
BQ51013C-Q1 1-A Instantaneous Load Dump (1)
Figure 7-6 1-A Instantaneous Load Dump (1)
BQ51013C-Q1 TS Fault
Figure 7-8 TS Fault
BQ51013C-Q1 Adapter Insertion (VAD = 10 V) Illustrating Break-Before-Make Operation
Figure 7-10 Adapter Insertion (VAD = 10 V) Illustrating Break-Before-Make Operation
BQ51013C-Q1 BQ51013C-Q1 Typical Start-Up With a 1-A System Load
Figure 7-12 BQ51013C-Q1 Typical Start-Up With a 1-A System Load
BQ51013C-Q1 Adaptive Communication Limit Event Where the Current Limit is IOUT + 50 mA (IOUT-DC > 300 mA)
Figure 7-14 Adaptive Communication Limit Event Where the Current Limit is IOUT + 50 mA (IOUT-DC > 300 mA)
  1. Total droop experienced at the output is dependent on receiver coil design. The output impedance must be low enough at that particular operating frequency in order to not collapse the rectifier below 5 V.
  2. On-the-go mode is enabled by driving EN1 high. In this test, the external PMOS is connected between the output of the BQ51013C-Q1 device and the AD pin; therefore, any voltage source on the output is supplied to the AD pin.