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Description
The P9242-R-EVK Mass-Market Evaluation Board demonstrates
the features of the P9242-R 15W Wireless Power Transmitter
(TX). It is intended to evaluate the functionality and performance
of the P9242-R when combined with a power receiver in a
wireless charging system. The P9242-R-EVK offers the flexibility
to select parameters, such as the over-current limit threshold,
LED pattern, and external temperature sensing function. The
printed circuit board (PCB) has four layers. The P9242-R
Evaluation Board is designed to function with the P9221-R
Receiver Evaluation Board, which is ordered separately. It can
also be used with the user's WPC-1.2.2 compliant receiver.
The high-efficiency, turnkey reference design is supported by
comprehensive online, digital resources to significantly expedite
the design-in effort and enable rapid prototyping. The total active
area is optimized to 32mm x 32mm.

Kit Contents

P9242-R-EVK Mass-Market Evaluation Board
Adaptor: 12V/2A AC
P9242-R Transmitter Board Connected to P9221-R-EVK
P9242-R Transmitter Evaluation Board
© 2016 Integrated Device Technology, Inc.
P9242-R-EVK Evaluation Board User Manual
Features
P9242-R Evaluation Board with support for WPC-1.2.2
Up to 15W output power
Adjustable over-current limit
Adjustable temperature shutdown
Two programmable LED status indicators
Four-layer PCB
Total active area: 1024 mm
Fully assembled with test points and coil fixture
P9242-R-EVK Mass-Market Evaluation Board
Transmitter Coil
1
2
P9221-R-EVK
12V/2A AC Adapter (Not to scale)
December 22, 2016

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Summary of Contents for IDT P9242-R-EVK

  • Page 1: Kit Contents

     of the P9242-R when combined with a power receiver in a Adjustable temperature shutdown  wireless charging system. The P9242-R-EVK offers the flexibility to select parameters, such as the over-current limit threshold, Two programmable LED status indicators  LED pattern, and external temperature sensing function. The Four-layer PCB ...
  • Page 2: Table Of Contents

    P9242-R-EVK Evaluation Board User Manual Important Notes Disclaimer Integrated Device Technology, Inc. and its affiliated companies (herein referred to as “IDT”) shall not be liable for any damages arising out of defects resulting from delivered hardware or software (ii) non-observance of instructions contained in this manual and in any other documentation provided to user, or (iii) misuse, abuse, use under abnormal conditions, or alteration by anyone other than IDT.
  • Page 3 P9242-R-EVK Evaluation Board User Manual List of Figures Figure 1. Evaluation Kit Connections using the P9221-R Receiver Evaluation Board ..................4 Figure 2. P9242-R V2.1 Evaluation Board Features............................5 Figure 3. P9242-R V2.1 Evaluation Board Details ..............................5 Figure 4. R43 and R44 Schematic Location ...............................7 Figure 5.
  • Page 4: Setup

    P9242-R-EVK Evaluation Board User Manual Setup Required or Recommended User Equipment The following additional lab equipment is required for using the kit: P9221-R-EVK Receiver Evaluation Board or any WPC-1.2.2 compliant receiver  Power supply or 12V/2A AC adaptor  Kit Hardware Connections Follow these procedures to set up the kit as shown in Figure 1.
  • Page 5: Usage Guide

    Tx Coil P9242-R Main IC Vin Power Connector: Micro-USB LED1 and LED2 Pattern Indicators Buzzer J2 IDT-Reserved Connector J5 IDT-Reserved Connector – Do Not Use Figure 3. P9242-R V2.1 Evaluation Board Details Iin Sense Resistor Coil Current Communication Demodulation Coil Voltage Communication Demodulation...
  • Page 6: Led Pattern Selection

    The P9242-R-EVK uses two LEDs (LED1 and LED2; see Figure 2) to indicate the power transfer status, faults, and operating modes. The LEDs are connected to the LED1 and LED2 pins as shown on P9242-R-EVK schematics (see section 3.1). The LED patterns can be selected by setting the voltage on the LED_PAT pin through the resistor divider R43 and R44;...
  • Page 7: Figure 4. R43 And R44 Schematic Location

    P9242-R-EVK Evaluation Board User Manual Figure 4. R43 and R44 Schematic Location Figure 5. R33 and R34 PCB Location © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 8: 2.3 Adjustment Of Over-Current Limit

    OCP value. The current limit can be selected by setting the voltage on the ILIM pin through the resistor divider R48 and R40. On the P9242-R-EVK, the ILIM pin is pulled up to 3.3V through R48. R40 is unpopulated; therefore, the current limit is set to 2.3A.
  • Page 9: Figure 7. R48 And R40 Schematic Location

    P9242-R-EVK Evaluation Board User Manual Figure 7. R48 and R40 Schematic Location Figure 8. R48 and R40 PCB Location © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 10: External Temperature Sensing - Ts

    P9242-R-EVK Evaluation Board User Manual External Temperature Sensing – TS The P9242-R includes an optional temperature sense input pin, TS, used to monitor a remote temperature, such as for a coil or a battery charger. The TS pin voltage can be calculated by Equation 1.
  • Page 11: 2.5 Reserved Pins

    P9242-R-EVK Evaluation Board User Manual 2.5 Reserved Pins There are multiple reserved pins listed in the schematic: pins 13 through 16, 25 through 29, 42, and 43. These GPIOs are proprietary and for factory use only. 2.6 Transmitter Coil The following coil is recommended with P9242-R transmitter for 15W applications for optimum performance. The recommended vendor has been tested and verified.
  • Page 12: Schematics, Bill Of Materials (Bom), And Board Layout

    P9242-R-EVK Evaluation Board User Manual Schematics, Bill of Materials (BOM), and Board Layout P9242-R Evaluation Board Schematics © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 13: Bill Of Materials (Bom)

    P9242-R-EVK Evaluation Board User Manual Bill of Materials (BOM) Table 3. P9242-R-EVK BOM Item Quantity Reference Value Description Part Number PCB Footprint C1, C2, C3, C4, C13, C15, 0.1µF CAP CER 0.1µF 25V 10% X7R 0402 C1005X7R1E104K 0402 C21, C26, C29, C30, C33,...
  • Page 14 P9242-R-EVK Evaluation Board User Manual Item Quantity Reference Value Description Part Number PCB Footprint VLX1, VINT1, IO_B1, PTH_TP 30 GAUGE WIRE PAD TEST_PT30DPAD IO_A1, GNDT1, vs2, VLX2, VINT2, IO_B2, GNDT2, vs3, IO_B3, IO_B4, IO_A4, VCC5V, IO_B5, IO_A5, IO_B6, IO_A6, IO_B7,...
  • Page 15 P9242-R-EVK Evaluation Board User Manual Item Quantity Reference Value Description Part Number PCB Footprint 0.02 RES SMD 0.02 OHM 1% 1/8W 0805 WSL0805R0200FE 0805 R19, R22, R40, R44 RES SMD 10K OHM 1% 1/10W 0402 RC0402FR-0710KL 0402 R25, R27, R28, R29...
  • Page 16: Board Layout

    P9242-R-EVK Evaluation Board User Manual Board Layout Figure 11. Silkscreen – Top of Board © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 17: Figure 12. Copper - Top Layer

    P9242-R-EVK Evaluation Board User Manual Figure 12. Copper – Top Layer © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 18: Figure 13. Copper L1 Layer

    P9242-R-EVK Evaluation Board User Manual Figure 13. Copper L1 Layer © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 19: Figure 14. Copper L2 Layer

    P9242-R-EVK Evaluation Board User Manual Figure 14. Copper L2 Layer © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 20: Figure 15. Copper Bottom

    P9242-R-EVK Evaluation Board User Manual Figure 15. Copper Bottom © 2016 Integrated Device Technology, Inc. December 22, 2016...
  • Page 21: Ordering Information

    IDT's products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT.
  • Page 22 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: IDT (Integrated Device Technology) P9242-R-EVK...

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