SLUSBD6D July   2013  – July 2016

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Principles of Operation
        1. 7.3.1.1 Fundamentals
        2. 7.3.1.2 Wireless Power Consortium (WPC)
        3. 7.3.1.3 Power Transfer
        4. 7.3.1.4 Communication
      2. 7.3.2 Dynamic Power Limiting
      3. 7.3.3 Shut Down Through External Thermal Sensor or Trigger
      4. 7.3.4 Fault Handling and Indication
      5. 7.3.5 Power Transfer Start Signal
      6. 7.3.6 Power On Reset
      7. 7.3.7 External Reset, RESET Pin
      8. 7.3.8 Trickle Charge and CS100
    4. 7.4 Device Functional Modes
      1. 7.4.1 LED Indication Modes
      2. 7.4.2 Low Power Mode
    5. 7.5 Programming
      1. 7.5.1 Option Select Pins
      2. 7.5.2 Current Monitoring Requirements
      3. 7.5.3 All Unused Pins
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 PMOD, FOD, and FOD Calibration
        2. 8.2.2.2 Coils and Matching Capacitors
        3. 8.2.2.3 Design Checklist for WPC1.1 Compliance With the bq500212A
        4. 8.2.2.4 Input Regulator
        5. 8.2.2.5 Power Train
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 Receiving Notification of Documentation Updates
    4. 11.4 Community Resources
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

D Package
8-Pin SOIC
Top View

Pin Functions

PIN TYPE DESCRIPTION
NAME NO.
ADCREF 48 I External reference voltage input. Connect this input to GND.
BPCAP 35 — Bypass capacitor for internal 1.8-V core regulator. Connect bypass capacitor to GND.
BUZ_AC 23 O AC buzzer output. Outputs a 400-ms, 4-kHz AC pulse when charging begins.
BUZ_DC 24 O DC buzzer output. Outputs a 400-ms DC pulse when charging begins. This could also be connected to an LED through 470-Ω resistor.
CLK 10 I/O 10-kΩ pullup resistor to 3.3-V supply. For factory use only.
COMM_A– 38 I Digital demodulation inverting input A, connect parallel to input B–.
COMM_A+ 37 I Digital demodulation non-inverting input A, connect parallel to input B+.
COMM_B– 40 I Digital demodulation inverting input B, connect parallel to input A–.
COMM_B+ 39 I Digital demodulation non-inverting input B, connect parallel to input A+.
DATA 11 I/O 10-kΩ pullup resistor to 3.3-V supply. For factory use only.
DOUT_TX 21 I Not used. Leave this pin open.
EPAD Thermal Pad — Flood with copper GND plane and stitch vias to PCB internal GND plane.
FOD 17 O Set the threshold used to detect an FOD condition by connecting, through resistor, to LOSS_THR. Leave open to disable FOD.
FOD_CAL 15 O FOD calibration pin. It controls the FOD calibration setting at start-up.
GND 31 I/O Reserved, connect to GND.
32, 36, 47 — Ground
I_SENSE 42 I Transmitter input current, used for efficiency calculations. Use 20-mΩ sense resistor and a 50-gain current sense amplifier.
LED_A 7 O Connect to an LED through 470-Ω resistor for status indication.
LED_B 8 O Connect to an LED through 470-Ω resistor for status indication.
LED_C 18 O Connect to an LED through 470-Ω resistor for status indication.
LED_MODE 44 I Input to select from four LED modes.
LOSS_THR 43 I Input to program FOD and PMOD thresholds and FOD_CAL correction.
NC 4 — Not used. Can be left open. Can also be tied to GND and flooded with copper to improve GND plane.
PEAK_DET 1 I Connected to peak detect circuit. Protects from coil overvoltage event.
PMOD 16 O Set the threshold used to detect a PMOD condition by connecting, through resistor, to LOSS_THR. Leave open to disable PMOD.
PWM_A 12 O PWM output A, controls one half of the full bridge in a phase-shifted full bridge. Switching deadtimes must be externally generated.
PWM_B 13 O PWM output B, controls other half of the full bridge in a phase-shifted full bridge. Switching deadtimes must be externally generated.
RESERVED 14, 19, 41 O Reserved, leave this pin open.
25, 26 I/O Not used, leave this pin open.
27, 28, 29, 30 I/O Reserved, leave this pin open.
20 I Reserved, connect to GND.
45 I Connect to V33D (3.3 V).
RESET 5 I Device reset. Use a 10-kΩ to 100-kΩ pullup resistor to the 3.3-V supply.
SLEEP 6 O Connected to 5 s interval circuit.
SNOOZE 9 O Connected to 500 ms ping interval circuit.
SNOOZE_CAP 3 I Connected to interval timing capacitor.
SNOOZE_CHG 22 I Connected to interval timing capacitor.
T_SENSE 2 I Sensor Input. Device shuts down when below 1 V for longer than 150 ms. If not used, keep above 1 V by connecting to the 3.3-V supply.
V33A 34 — Analog 3.3-V Supply. This pin can be derived from V33D supply, decouple with 10-Ω resistor and additional bypass capacitors.
V33D 33 — Digital core 3.3-V supply. Be sure to decouple with bypass capacitors as close to the part as possible.
V_SENSE 46 I Transmitter input voltage, used for efficiency calculations. Use 76.8-kΩ to 10-kΩ divider to minimize quiescent current.