MAX77950EVKIT# Analog Devices

Evaluates: MAX77950 MAX77950 Evaluation Kit General Description Quick Start The MAX77950 evaluation kit (EV kit) is a fully assembled Required Equipment and tested PCB that evaluates the MAX77950 advanced MAX77950 EV kit wireless power receiver IC. The IC meets the specification Wireless power transmitter with WPC/PMA requirements for WPC low-power (v1.2) and PMA SR1 compliance (v2.0) communication protocols and operates using near- Micro-USB cable field magnetic induction when coupled with WPC or PMA transmitters, providing up to 12W of output power. Digital multimeter (DVM) The EV kit comes with a planar coil to receive or transmit Windows-based PC power wirelessly, as well as Windows -based software Optional: DC power supply that provides a graphical user interface (GUI) to evaluate Optional: Electronic load the functions of the device. Note: In the following sections, software-related items are Benefits and Features identified by bolding. Text in bold refers to items directly Ready-to-Go EV Kit with Receiver Coil from the EV kit software. Text in bold and underlined refers to items from the Windows operating system. Multiple Test Points to Measure Output Voltage (V ), Rectifier Output Voltage (V ), OUT RECT and AC Voltage MAX77950 EV Kit Photo Graphical User Interface (GUI) Software for the Multifunction Test LED Indication to Monitor Operation RoHS Compliant Proven PCB Layout Fully Assembled and Tested Ordering Information appears at end of data sheet. Windows is a registered trademark and registered service mark of Microsoft Corporation. 319-100007 Rev 0 3/17Evaluates: MAX77950 MAX77950 Evaluation Kit 6) Place the EV kit on the transmitter and align properly. Procedures 7) Check that the power-good indicator LED (DS1) The EV kit is fully assembled and tested. The following is on. steps are used to verify board operation. 8) Launch the EV kit GUI. Press Connect under the De- Install the EV Kit GUI vice menu to initiate the link with the EV kit as shown in Figure 1. The EV kit GUI allows the user to communicate with the 2 EV kit. The GUI connects to the EV kit through an I C and PeerPower USB interface to monitor and control the IC by changing TM Follow the steps below to operate the EV kit in PeerPower the register-related functions such as FOD coefficient, mode: V target for WPC/PMA, and LDO output voltage. RECT 9) Disconnect all power supplies from the EV kit. 1) Visit www.maximintegrated.com/evkitsoftware to 10) Make a jumper connection on P2P EN (J2) to VIO download the latest version of the EV kit software, pins (1-2) to enable PeerPower mode. MAX77950 EVKIT GUI 1.70207.0D-x86.zip. Save 11) Set J101 to pins 1-2 if an external voltage source is the EV kit software to a temporary folder and uncom- used to supply 1.8V to VIO otherwise, set to pins 2-3 press the file. to use the on-board 1.8V. 2) Unzip and run the execution file and follow the in - 12) Preset a DC power supply to 5V (if you choose to use structions to finish the installation. an external source to VIO, preset the other DC power Startup supply to 1.8V). 13) Connect the 5V DC power supply to V and 1.8V OUT 3) Ensure that the EV kit has the desired jumper set- to E VIO (see the MAX77950 EV Kit Photo) tings, as shown in Table 1. 14) Turn on the power supply. 4) Connect to a PC using the Micro-USB cable (see the 15) The EV kit is now ready to operate as a transmitter. MAX77950 EV Kit Photo). 5) Turn on the WPC/PMA transmitter to provide power *For VIO to use on-board 1.8V from LDO (U103), connect to the EV kit. to a 5V source through the Micro-USB cable (J4). Table 1. Default Jumper Settings JUMPER NODE OR FUNCTION SHUNT POSITION FUNCTION 1-2 The device is disabled. J1 WP EN 2-3* The device is enabled. 1-2 Connecting P2P EN to VIO. J2 P2P EN 2-3 Not in use. OPEN* PeerPower is disabled. J3 WP DET 1-2* Connect WP DET to LED. 1-2 An external source (1.8V) supplies VIO. J101 VIO 2-3* On-board 1.8V LDO (U103) supplies VIO. *Default position. PeerPower is a trademark of Maxim Integrated Products, Inc. Maxim Integrated 2 www.maximintegrated.com