SLUSBZ1B October   2014  – March 2017

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  A29 Coil Specification
      2. 7.3.2  Option Select Pins
      3. 7.3.3  LED Modes
      4. 7.3.4  FOD and Parasitic Metal Object Detect (PMOD) Calibration
      5. 7.3.5  FOD Ping Calibration
      6. 7.3.6  Shut Down Through External Thermal Sensor or Trigger
      7. 7.3.7  Fault Handling and Indication
      8. 7.3.8  Power Transfer Start Signal
      9. 7.3.9  Power-On Reset
      10. 7.3.10 External Reset, RESET Pin
      11. 7.3.11 Trickle Charge and CS100
    4. 7.4 Device Functional Modes
      1. 7.4.1 Power Transfer
      2. 7.4.2 Communication
      3. 7.4.3 Power Trains
      4. 7.4.4 Power Train Voltage Control
      5. 7.4.5 Signal Processing Components
  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 Capacitor Selection
        2. 8.2.2.2 Current Monitoring Requirements
        3. 8.2.2.3 All Unused Pins
        4. 8.2.2.4 Input Regulators
        5. 8.2.2.5 Input Power Requirements
        6. 8.2.2.6 LED Mode
      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
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 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

RGC Package
64 Pin (VQFN)
(Top View)

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
PEAK_DET 1 I Input from peak detect circuit
T_SENSE 2 I Sensor input. Device shuts down when below 1 V. If not used, keep above 1 V by simply connecting to 3.3-V supply
SNOOZE_CAP 3 I Indicates wake from SNOOZE (short) or SLEEP (long)
Unused 4 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
Unused 5 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
Unused 6 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
V33DIO 7 — 3.3-V IO power supply
DGND 8 — GND
RESET 9 I Device reset. Use 10- to 100-kΩ pullup resistor to 3.3-V supply
Reserved 10 — Reserved, leave this pin open
SLEEP 11 O Force SLEEP (5 s low power). Connected to 5-s interval circuit
LED-A 12 O Connect to an LED with a 470-Ω resistor for status indication.
LED-B 13 O Connect to an LED with a 470-Ω resistor for status indication.
SNOOZE 14 O Force SNOOZE (500 ms low power)
Reserved 15 I Reserved, connect to GND
Reserved 16 I/O Reserved, connect to GND
PWM-A 17 O PWM output A, controls one half of the full bridge in a phase-shifted full bridge. Switching dead times must be externally generated.
PWM-B 18 O PWM output B, controls other half of the full bridge in a phase-shifted full bridge. Switching dead times must be externally generated.
FP_RES 19 O Output to select the FOD ping calibration threshold
FP_DECAY 20 O Output to select the FOD ping calibration threshold
PWM_RAIL 21 O PWM control signal for full bridge rail voltage
FOD_CAL 22 O Output to select the FOD calibration
FOD 23 O Output to select the foreign object detection (FOD) threshold
PMOD 24 O Output to select the PMOD threshold
LED-C 25 O Connect to an LED with a 470-Ω resistor for status indication.
DGND 26 — GND
Unused 27 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
Unused 28 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
Unused 29 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
SNOOZE_CHG 30 O SNOOZE capacitor charging source. Connected to capacitor
BUZZ-AC 31 O AC buzzer output. A 400-ms, 4-kHz AC pulse train when charging begins
BUZ-DC 32 O DC buzzer output. A 400-ms DC pulse when charging begins. This could also be connected to an LED with a 470-Ω resistor.
Reserved 33 — Reserved, leave this pin open
Reserved 34 — Reserved, leave this pin open
Reserved 35 — Reserved, leave this pin open
Reserved 36 — Reserved, leave this pin open
Reserved 37 — Reserved, leave this pin open
Reserved 38 — Reserved, leave this pin open
Reserved 39 — Reserved, leave this pin open
Reserved 40 — Reserved, connect to 10-kΩ resistor to GND
Reserved 41 — Reserved, leave this pin open
Reserved 42 — Reserved, leave this pin open
DGND 43 — GND
V33DIO 44 — 3.3-V IO power supply
V33D 45 — Digital core 3.3-V supply. Be sure to decouple with bypass capacitors as close to the part as possible.
V33A 46 — Analog 3.3-V supply. This pin can be derived from V33D supply, decouple with 22-Ω resistor and additional bypass capacitors.
BPCAP 47 — Connect to 1uF bypass capacitors to 3.3V supply and GND
AGND2 48 — GND
AGND 49 — GND
COMM_A+ 50 I Digital demodulation non-inverting input A. Connect parallel to input B+
COMM_A- 51 I Digital demodulation inverting input A. Connect parallel to input B–
COMM_B+ 52 I Digital demodulation non-inverting input B. Connect parallel to input A+
COMM_B– 53 I Digital demodulation inverting input B. Connect parallel to input A–
V_RAIL+ 54 I Feedback for full bridge rail voltage control +
V_RAIL– 55 I Feedback for full bridge rail voltage control –
Unused 56 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
Unused 57 — This pin can be either connected to GND or left open. Connecting to GND can improve layout grounding.
V33FB 58 I Reserved, leave this pin open
I_SENSE 59 I Full bridge input current sense
LOSS_THR 60 I Input for FOD/PMOD calibration and configuration
LED_MODE 61 I LED mode select
PWR_UP 62 I First power-up indicator (pull high if unused)
V_SENSE 63 I Transmitter rail voltage sense
AGND3 64 — GND
Thermal Pad — Flood with copper GND plane and stitch vias to PCB internal GND plane.