Evaluates: MAX77826 MAX77826 Evaluation Kit General Description Quick Start The MAX77826 evaluation kit (EV kit) is a fully assem- Required Equipment bled and tested PCB that evaluates the MAX77826 Variable power supply capable of supplying up to 5.5V power-management IC. The MAX77826 includes 1 BUCK Multimeters regulator, 1 BUCK-BOOST regulator, 15 LDOs (3 NMOS 2 2 LDOs and 12 PMOS LDOs) and an I C Interface. The I C PC with a spare USB port interface supports output-voltage setting , turning on/off of MINIQUSB+ command module (USB cable included) all regulators and reading interrupt/status registers. MAX77826 EV kit The MINIQUSB interface board can be used to enable PC communication through the USB interface board. Procedure Windows 2000-, Windows XP -, Windows Vista -, and The MAX77826 EV kit is a fully assembled and tested Windows 7-compatible software along with an extender surface-mount board. Follow the steps below to verify board allows an IBM-compatible PC to use to the USB board operation. Caution: Do not turn on the power supply 2 port to emulate an I C 2-wire interface. This menu-driven until all connections are completed. program offers a graphical user interface (GUI) with con- 1) Visit www.maximintegrated.com/evkitsoftware to trol buttons. download the latest version of the EV kit software, xx.ZIP. Save the EV kit software to a temporary Features folder and uncompress the ZIP file. Provides a Reference PCB Layout for Mobile 2) Install the EV kit software on your computer by run- Applications by Using Small Footprint External ning the INSTALL.EXE program inside the temporary Components folder. The program files are copied and icons are Jumpers for Chip Enable (CE) created in the Windows Start Programs menu. 3) Carefully connect the MINIQUSB+ command Jumpers for GPIO Enable for BUCK, BUCK BOOST, module with the MAX77826 EV kit by aligning the and LDO12 16-pin connector J1 and 8-pin receptacle J2 of the Jumpers for Switching LDOs Input Supplies MAX77826 EV kit with the 16-pin receptacle J3 and Built-In 1.8V LDO for VIO Supply 8-pin header J4 of the MINIQUSB+ interface board, respectively. 4) Connect the USB cable from the PC to the Windows, Windows Vista, and Windows XP are registered MINIQUSB+ command module. trademarks and registered service marks of Microsoft Corporation, 5) Preset the power supply to 3.7V. Turn off the power supply. 6) Connect the positive lead of the 3.7V power supply Ordering Information appears at end of data sheet. to the VBATT pad. Connect the negative lead of the 3.7V power supply to the GND pad. 7) Turn on the power supply. 8) Move Jumper JU6 from 2-3 to 1-2 (chip enable). 9) Start the MAX8904 program by opening its icon in the Start Programs menu. The EV kit software main window appears, as shown in Figure 1. 10) Wait until seeing Command Module Connected, Device Connected as shown in Figure 1. 11) Click Turn on All Regulator button. 12) Verify that all regulators output default voltage. 19-7658 Rev 0 6/15Evaluates: MAX77826 MAX77826 Evaluation Kit INTERRUPT Tab Detailed Description of Software The INTERRUPT tab sheet allows user to monitor inter- The MAX77826 EV kit uses the MINIQUSB+ command 2 rupts (refer to MAX77826 data sheet for details) and mask module for an I C interface to control the MAX77826 IC. each interrupt if needed. The EV kit software displays six tabs to control and moni- tor status of the MAX77826 IC, INTERRUPT, STATUS, OPMD, CFG(1), CFG(2), and FREQ/UVLO/DEVICE ID. Figure 1. MAX77826 EV Kit Software (INTERRUPT Tab) Maxim Integrated 2 www.maximintegrated.com