MAX34460EVKIT#

MAX34460 Evaluation Kit Evaluates: MAX34460 General Description The MAX34460 evaluation kit (EV kit) provides the hardware and software graphical user interface (GUI) necessary to evaluate the MAX34460 PMBusK 12-channel voltage monitor and sequencer. The EV kit includes a MAX34460ETM+ installed, as well as four power supplies that can be sequenced, monitored, and margined by the IC. EV Kit Contents S Assembled Circuit Board Including MAX34460ETM+ S Mini USB Cable Features S Easy Evaluation of the MAX34460 S Four Power-Supply Channels S EV Kit Hardware is USB Powered (USB Cable Included) S USB HID Interface S Windows XPM- and WindowsM 7-Compatible Software S RoHS Compliant S Proven PCB Layout S Fully Assembled and Tested Ordering Information appears at end of data sheet. MAX34460 EV Kit Photo PMBus is a trademark of SMIF, Inc. Windows and Windows XP are registered trademarks of Microsoft Corp. For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. 19-6334; Rev 0; 9/12 MAX34460 Evaluation Kit Evaluates: MAX34460 MAX34460 EV Kit Files FILE DESCRIPTION MAX344XXEVKitSoftwareInstall.EXE Application program Note: The .EXE file is downloaded as a .ZIP file. Quick Start Required Equipment • MAX34460 EV kit and hardware 7) Open the .ZIP file and double-click on the .EXE file to run the installer. A message box stating: The publisher could not be verified. Are you sure you want to run this software? may appear. If so, click Yes. 8) The installer GUI appears. Click Next and then Install. Once complete, click Close. • Windows XP or Windows 7 PC • USB port • Mini-USB cable (included) Note: In the following sections, software-related items are identified by bolding. Text in bold refers to items directly from the install or EV kit software. Text in bold and under­ lined refers to items from the Windows operating system. 9) Go to Start | All Programs. Look for the MAX344XXEVKitSoftware folder and click on the MAX344XXEVKitSoftware.EXE file inside the folder. 10) When the GUI appears, the text at the bottom should display EV Kit Hardware Connected. The com LED (D21) on the EV kit board should turn green. Procedure Detailed Description of Software 1) Ensure that jumpers/shunts J23 and J1 are installed. Note: The GND planes of the USB I2C dongle and the EV kit are not connected. The GND jumper on J23 must be connected for proper communication. If the MAX34460 EV kit is connected when the software is opened, the software first initializes the hardware to communicate. Next, the software searches for all slave addresses on the I2C bus and connects to the first slave address that is valid. The model number is then read to see which device is connected. The GUI displays EV Kit Hardware Connected at the bottom. If the EV kit is not connected on software startup, a No Hardware window pops up and asks the user to select the device they would like to run offline. Select a device and click OK. The GUI then populates with default EV kit values. Once the EV kit is connected, the GUI executes the sequence above. The EV kit is fully assembled and tested. Follow the steps below to verify board operation: 2) Ensure that switches S1 and S2 are in the high position and S4, S5, and S6 are in the on position. 3) Set the EV kit hardware on a nonconductive surface to ensure that nothing on the PCB gets shorted together. 4) Prior to starting the GUI, connect the EV kit hardware to a PC using the supplied mini-USB cable, or equivalent. The power LED (D20) should be green and the com LED (D21) should be red and slowly flash orange. 5) Windows should automatically begin installing the necessary device driver. The USB interface of the EV kit hardware is configured as an HID device and therefore does not require a unique/custom device driver. Once the driver installation is complete, a Windows message appears near the System Icon menu indicating that the hardware is ready to use. Do not attempt to run the GUI prior to this message. If you do, then you must close the application and restart it once the driver installation is complete. On some versions of Windows, administrator privileges may be required to install the USB device. 6) Once the device driver installation is complete. Visit www.maximintegrated.com/evkitsoftware to download the latest version of the EV kit software, MAX344XXEVKitSoftwareInstall.ZIP. Save the EV kit software to a temporary folder. Maxim Integrated Software Startup Menu Items The File menu item contains save, load, and exit options. To save the current GUI configuration, click Save Project As. This saves the device name and channel names to an XML file and saves PMBus configurations to a HEX file. If a device is connected, this reads and saves data directly from the device; otherwise, it saves the configuration that is currently displayed on the GUI. Save Project saves the GUI configuration to a file that was last saved or loaded. Load Project updates the GUI with the XML file, writes the HEX file to the device, and reads current values from the device. If a device is not connected, then the HEX file is written to a virtual device. The HEX file only contains data for the PMBus commands that are stored in flash. Create Report saves a CSV file that contains all the tables displayed on the Sequencing, Monitoring, and Margining tabs.   2 MAX34460 Evaluation Kit Evaluates: MAX34460 The Connection menu item allows the user to connect to a desired device. Find Slave Addresses searches for all slave addresses connected to the I2C bus. To select a device, click Select Slave Address and all the slave addresses found are shown and are selectable. Slave addresses 18h and 34h are not selectable to prevent communicating with the alert response address and factory-programmed address. The Auto Polling menu item has options for automatic reading of the device. To start polling, select the delay between reads: 300ms, 500ms, 800ms, or 1000ms. Each poll reads the Power Status (STATUS_ WORD 79h), Fault Status (STATUS_WORD 79h), and the polled values for the Data Log Graph tab. The Status and Margining tabs are only polled if the tab is currently selected. To stop polling, select Off from the menu. Polling can also be stopped by selecting items in the File menu, Connection menu, or by pressing buttons that involve action with the NV Fault Log or flash. The Device menu item shows which device the tables and controls are configured for. To turn the power supplies on or off, select the Power On/Power Off button, which writes a value to the OPERATION (01h) command. The supplies power on with margining off and power off based on the Power Down Action drop-down list on the Sequencing tab. When the GUI Lock is on, all writing actions are disabled. Status Log The status log below the tabs displays all the actions the GUI performs. Whenever a PMBus command is read or written, the action is confirmed by the log. To save the log, press the Save Log button and the text in the box is saved to a .TXT file. The log can also be cleared by pressing the Clear Log button. Sequencing Tab The Sequencing tab sheet (Figure 1) includes all timing and alarm configurations. All values on the tab are read when the tab is selected. The channels can be set up in one or two groups by selecting the Single or Dual radio Maxim Integrated button under Sequencing Mode. When Single is selected, the Group column is forced to Primary. The channels can also be sequenced based on time or event by selecting the option from the Sequencing Mode drop-down list. If PMBus (time-based) is chosen, then the values under the Timeslot (MFR_SEQ_TIMESLOT D3h) column are all written to 0. The Sequencing Mode radio buttons and drop-down lists write to bits in MFR_MODE (D1h). The channels can be powered down simultaneously or with a TOFF delay by selecting the option in the Power Down Action drop-down list that writes to a bit in ON_ OFF_CONFIG (02h). The Fault Retry Time sets the value in MFR_FAULT_RETRY (DAh). The Output Type writes to MFR_PSEN_CONFIG (D2h) to set the PSEN behavior. For the PSEN pin to act as a normal enable/disable for a power supply, select one of the PSEN options under Output Type. If a GPO option is selected, the channel is no longer a part of the sequencer, so the Timeslot and TON Max are written to 0 and all the channel configurations on the table become read-only. The timeslot for each channel can be set by selecting a value in the Timeslot column, which writes to MFR_SEQ_TIMSLOT (D3h). Note that these values can only be changed when the Sequencing Mode is set to Timeslot (event-based). The Group column assigns the channel to the primary or secondary group by writing to a bit in MFR_SEQ_ TIMESLOT (D3h). The sequencing delays can be set by writing values to TON Delay (TON_DELAY 60h), TON Max (TON_MAX_FAULT_LIMIT 62h), and TOFF Delay (TOFF_DELAY 64h). A channel can be set to global by checking the checkbox in the Global column to write to a bit in MFR_FAULT_RESPONSE (D9h). Alarm 0 and Alarm 1 can be configured to turn on for different faults by selecting an option in the ALARM0/1 Pin Config column that writes to bits in MFR_FAULT_RESPONSE (D9h). The Fault Response column writes to the TON Max Fault response bits in MFR_FAULT_RESPONSE (D9h). To log faults into the NV fault log, check the checkbox in the Log Faults column that writes to MFR_FAULT_RESPONSE (D9h).   3 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 1. MAX34460 EV Kit GUI (Sequencing Tab) Maxim Integrated   4 MAX34460 Evaluation Kit Evaluates: MAX34460 Sequencing Graph Tab The Sequencing Graph tab sheet (Figure 2) displays the timing diagrams for all the channels. When the Power Up radio button is selected, the TON Delay (TON_DELAY 60h) and TON Max (TON_MAX_FAULT_LIMIT 62h) values are displayed on the graph. To change the TON Delay, click and drag the green vertical bar; to change TON Max, click and drag the red vertical bar. The Power Down graph displays the TOFF Delay (TOFF_DELAY 64h) and can be changed by clicking and dragging the green vertical bar. These values write to the PMBus command when the mouse is released. The Power Up graph can be changed to PMBus (time-based) or Timeslot (event-based) by selecting the option on the Sequencing tab (Figure 1). When Timeslot (eventbased) is selected, the power-up graph allows the Timeslot (MFR_SEQ_TIMSLOT D3h) to be changed by clicking and dragging the ramp. Monitoring Tab The Monitoring tab sheet (Figure 3) displays the fault/ warn limit settings for each channel and for each temperature sensor. To read the settings, click on the Monitoring tab and all the values are automatically read. To write to a value, click on the corresponding cell, type in a valid value, and either click another cell or press Enter on the keyboard. In the VOLTAGE table, the Sequencer column shows the status of the channel and is read only. To turn on or off the sequencer, select a PSEN or GPO option, respectively, on the Sequencing tab (Figure 1) under the Output Type column. The Nominal and Resistive Ratio columns are calculated based on a nominal ADC level of 1.8V to set the VOUT_SCALE_ MONITOR (2Ah). The Resistive Ratio is found by dividing 1.8V by the Nominal value. The fault/warn limits can be set by entering the voltage level or the percent of the nominal in the UV Fault (VOUT_UV_FAULT_LIMIT 44h), UV Warn (VOUT_UV_WARN_LIMIT 43h), OV Warn (VOUT_OV_WARN_LIMIT 42h), OV Fault (VOUT_OV_ FAULT_LIMIT 40h), PG On (POWER_GOOD_ON 5Eh), and PG Off (POWER_GOOD_OFF 5Fh) columns. The Fault Response column writes to the OV and UV fault response bits in MFR_FAULT_RESPONSE (D9h). To write to the OT fault response bits in MFR_FAULT_RESPONSE (D9h), check the checkbox in the OT Fault column and it sets the same response selected in the Fault Response column. To log faults into the NV fault log, check the checkbox in the Log Faults column to write to MFR_ FAULT_REPSPONSE (D9h). In the TEMPERATURE Maxim Integrated table, the sensors can be enable/disabled in the Enable column, which writes to a bit in MFR_TEMP_SENSOR_ CONFIG (F0h). The OT warn/fault limits can be set by entering a value in the OT Warn (OT_WARN_LIMIT 51h) or OT Fault (OT_FAULT_LIMIT 4Fh) columns. The power-good delay can be adjusted with the PG Delay up/down spin box, which writes to MFR_PG_ DELAY (DBh). The Watchdog Configuration section sets up the external watchdog and reads/writes to bits in MFR_WATCHDOG_CONFIG (FDh). Margining Tab The Margining tab sheet (Figure 4) includes the margin configurations, margin fault status, and a DAC calculator for the DS4424. All values on the tab are read when the tab is selected. The Margin column turns the margin on/off by writing to the OPERATION (01h) command. To force all the channels to the same margin, select the state in the Margin All Control drop-down list to the right of the table. The Slope, Open Loop, and DAC Value columns configure the DS4424 and are read from bits in the MFR_MARGIN_CONFIG (DFh) command. The margining limits can be set by entering the voltage level or the percent of the nominal in the Margin Low (VOUT_ MARGIN_LOW 26h) and Margin High (VOUT_MARGIN_ HIGH 25h) columns. When the margining is turned on, the fault status is shown in the Status column read from STATUS_MFR_SPECIFIC (80h). The Polled column displays the current channel voltage read from READ_VOUT (8Bh). To read the Status and Polled values, press the Read Status and Vout button or turn on Auto Polling. The margin fault can be cleared by pressing the Clear Faults button on the Status tab (Figure 5). The Calculator is used to find the DS4424 external resistor (RFS), which determines the full-scale and step-size current for the DAC. If RFS is calculated to be outside its limits (40kI < RFS < 160kI), then the resistor is forced to the edge of the limit and the DS4424 RFS edit box turns red. The equations used to calculate the outputs are given in Table 1. Table 1. DAC Calculator OUTPUT EQUATIONS IFB = (VOUT)/(R1 + R2) DS4424 RFS = (7.75)/(IFB x margining range) DS4424 full scale = (0.976 x 127)/(16 x RFS) DS4424 step size = full scale/64   5 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 2. MAX34460 EV Kit GUI (Sequencing Graph Tab) Maxim Integrated   6 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 3. MAX34460 EV Kit GUI (Monitoring Tab) Maxim Integrated   7 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 4. MAX34460 EV Kit GUI (Margining Tab) Maxim Integrated   8 MAX34460 Evaluation Kit Evaluates: MAX34460 Status Tab The Status tab sheet (Figure 5) displays all the faults, warnings, and device ID information. To read all the current output values, faults, and warnings, press the Read Status button or turn on Auto Polling. The fault and warning bits are read from STATUS_VOUT (7Ah), STATUS_MFR_SPECIFIC (80h) and STATUS_ TEMPERATURE (7Dh). The Polled values are read from READ_VOUT (8Bh) and READ_TEMPERATURE (8Dh). Each color indicator turns green if the status is good, red if there is a fault, or yellow to indicate a warning. The Polled value may not reflect the fault or warning because some bits are latches and have to be cleared. To clear the faults and warnings, press the Clear Faults button, which sends the CLEAR_FAULTS (03h) command. The alarm faults are also latches and have to be cleared by pressing the Clear Alarm button to set a bit in MFR_MODE (D1h). The Time Count displays the 32-bit counter read from the MFR_TIME_COUNT (DDh) command. This timer can be reset by pressing the Reset Time Count button, which writes a sequence of all zeros, all ones, and all zeros to MFR_TIME_COUNT (DDh). The ID COMMANDS table displays all the ID information of the device. Press the Read ID button to read all the commands in the table. Data Log Graph Tab The Data Log Graph tab sheet (Figure 6) plots the polled values in a graph and keeps track of the minimum and maximum values for each channel voltage and each temperature sensor. To read and plot the polled values, press the Data Log Read button or turn on Auto Polling. Each data log reads every channel’s voltage from READ_VOUT (8Bh) and every temperature sensor from READ_TEMPERATURE (8Dh). The software finds the minimum and maximum values over multiple reads. The Poll Count displays the number of reads that have been tracked in the data log. When the polled count reaches 10,000, the graph deletes the oldest polled values and adds a new polled value. The min/max values are still based on all the poll count values, but the graph only displays the latest 10,000 polled values. To reset the Poll Count and all the minimum and maximum values, press the Data Log Reset button. To turn off data logging during polling, check the Data Log Off checkbox. The Select Data combo box is used to select the voltage or temperature data to display on the graph and in the MIN/ MAX Data table. To save all the data graphed to a CSV file, press the Save Data Log button. Maxim Integrated Fault Log Tab The Fault Log tab sheet (Figure 7) displays the NV Fault Log and fault configurations. When the tab is selected, the Overwrite and Fault Log Depth are read. When the fault log is full, the Enable Overwrite can be checked to automatically overwrite previous logs. The fault log depth can be adjusted with the Fault Log Depth combo box. The Enable Overwrite and Fault Log Depth are read from bits in MFR_NV_LOG_CONFIG (D8h). To read the fault log, press the Read NV Fault Log button and all 255 bytes from MFR_NV_FAULT_LOG (DCh) are displayed in the table. To clear or force the fault log, press the Clear NV Fault Log or Force NV Fault Log button, respectively. These buttons write to a bit in MFR_NV_LOG_CONFIG (D8h). To save the current fault log displayed in the table, press the Dump to a File button and the table is saved as a CSV file. Registers Tab The Registers tab sheet (Figure 8) displays all the PMBus commands and their current data. To read the registers, select a page from the top drop-down list and all the PMBus commands valid for that page are automatically read. The commands not valid for that page are grayed out. Press the Read All button to read the registers again. To write to a command, enter the hex value in the cell and click another cell or press Enter on the keyboard. The current register configuration can be saved to flash by pressing the Save to Flash button, which sends the STORE_DEFAULT_ALL (11h) command. To return the device to the configuration saved in flash, press the Restore from Flash button, which sends the RESTORE_DEFAULT_ALL (12h) command. To reset the device, press the Soft Reset button to write to a bit in MFR_MODE (D1h). The Calculate CRC button sends the RESTORE_DEFAULT_ALL (12h) command and then calculates a 2-byte CRC based on PMBus configuration commands that are stored in flash. The Read CRC from MFR_DATE button reads MFR_DATE (9Dh) and displays the upper 2 bytes in the edit box below the button. The Calculate CRC & Write to MFR_DATE button sends the RESTORE_DEFAULT_ALL (12h) command, calculates a CRC, writes the CRC to the upper 2 bytes of MFR_DATE (9Dh), and sends STORE_DEFAULT_ALL (11h) command. The Command Description displays the bitmap for selected PMBus commands. Select the command from the drop-down list and the table below displays a description of each bit for that command.   9 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 5. MAX34460 EV Kit GUI (Status Tab) Maxim Integrated   10 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 6. MAX34460 EV Kit GUI (Data Log Graph Tab) Maxim Integrated   11 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 7. MAX34460 EV Kit GUI (Fault Log Tab) Maxim Integrated   12 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 8. MAX34460 EV Kit GUI (Registers Tab) Maxim Integrated   13 MAX34460 Evaluation Kit Evaluates: MAX34460 Detailed Description of Hardware User-Supplied I2C Interface To communicate with the MAX34460 using a usersupplied I2C interface, first remove the J23 jumper to disconnect the USB I2C dongle. If the dongle is no longer desired, it can be separated from the EV kit by snapping the PCB at the scored line. Connect test points SDA, SCL, GND, and 5V to the off-board I2C interface. The I2C interface should operate at 3.3V. User-Supplied Power Supplies To disconnect the on-board power supplies, turn the DAC (S4), RS (S5), and PSEN (S6) DIP switches off. The power supplies’ GND should be connected to the banana jack GND. Connect the desired PSEN pins to the enable pin on the power supply, and the RS pins to a voltage-divider on the output of the power supply. The voltage-divider is only required if the output voltage is greater than 1.8V. For closed-loop margining with the on-board DS4424, connect DAC0–DAC3 to the feedback of the power supply channels 0–3. User-Supplied DS4424 To margin with a user-supplied DS4424, disconnect the on-board current DAC by switching the DAC (S4) DIP switch to off. Then connect MSDA, MSCL, and GND on J3 to the external current DAC. The slave address for the usersupplied DS4424 should be 60h for power-supply channels 4–7 or A0h for channels 8–11. The on-board DS4424 has slave address 20h, which margins channels 0–3. User-Supplied DS75LV To use an off-board digital temperature sensor, connect MSDA, MSCL, and GND on J3 to the DS75LV. The slave address for the user-supplied DS75LV should be 92h, 94h, or 96h. The on-board DS75LV has slave address 90h. Troubleshooting All efforts were made to ensure that each kit works on the first try, right out of the box. In the rare occasion that a problem is suspected, see Table 5 to help troubleshoot the issue. Table 2. Description of LEDs LED COLOR D2 Red Fault: A shutdown fault occurred for a global primary group. DESCRIPTION D3 Red Fault 2: A shutdown fault occurred for a global secondary group. D4 Red Watchdog Output (WDO): Watchdog timeout has occurred. D5 Green Power Good 2 (PG2): All enabled channels for the secondary group are above their associated power-good on value. D6 Green Power Good (PG): All enabled channels for the primary group are above their associated power-good on value. D7 Red Alert: A fault has occurred. D8 Red Alarm1: Configurable on the Sequencing tab (Figure 1). D9 Red Alarm0: Configurable on the Sequencing tab (Figure 1). DA Red VOUT0: Channel 0 is on. DB Red VOUT1: Channel 1 is on. DC Red VOUT2: Channel 2 is on. DD Red VOUT3: Channel 3 is on. D20 (Power) Red USB Power Fault: A fault occurred due to overvoltage limit, current limit, or thermal limit. D21 (Com) Maxim Integrated Green Red Green USB Power: USB power supply is on. Communication: After the software has initialized the hardware, the LED flashes red when an I2C command is received. Initialized: Hardware has been initialized by software.   14 MAX34460 Evaluation Kit Evaluates: MAX34460 Table 3. Description of Switches SWITCH S1 S5 S6 Control: Pulls the control pin high. Low Control: Pulls the control pin low. Low S3 DESCRIPTION High* High* S2 S4 SWITCH POSITION Pressed Control 2: Pulls the control 2 pin high. Control 2: Pulls the control 2 pin low. Reset: Pulls the reset pin low to reset the MAX34460. 1 On* DAC0: Connects DAC0 of DS4424 to FB0 of the channel 0 power supply. 2 On* DAC1: Connects DAC1 of DS4424 to FB1 of the channel 1 power supply. 3 On* DAC2: Connects DAC2 of DS4424 to FB2 of the channel 2 power supply. 4 On* DAC3: Connects DAC3 of DS4424 to FB3 of the channel 3 power supply. 1 On* RS0: Connects RS0 of MAX34460 to the channel 0 power supply. 2 On* RS1: Connects RS1 of MAX34460 to the channel 1 power supply. 3 On* RS2: Connects RS2 of MAX34460 to the channel 2 power supply. 4 On* RS3: Connects RS3 of MAX34460 to the channel 3 power supply. 1 On* PSEN0: Connects PSEN0 of MAX34460 to the channel 0 power supply. 2 On* PSEN1: Connects PSEN1 of MAX34460 to the channel 1 power supply. 3 On* PSEN2: Connects PSEN2 of MAX34460 to the channel 2 power supply. 4 On* PSEN3: Connects PSEN3 of MAX34460 to the channel 3 power supply. *Default position. Table 4. Description of Jumpers JUMPER JUMPER POSITION J1 VDD-VDUT 5V-5V J23 5V: Supplies 5V from the USB I2C dongle to the EV kit board. SDA-SDA SDA: Connects SDA from the USB I2C dongle to the MAX34460 SDA. GND-GND GND: Connects GND from the USB I2C dongle to the EV kit board GND. SCL-SCL Maxim Integrated DESCRIPTION MAX34460 Power: Connects VDD to VDUT (MAX34460). SCL: Connects SCL from the USB I2C dongle to the MAX34460 SCL.   15 MAX34460 Evaluation Kit Evaluates: MAX34460 Table 5. Troubleshooting SYMPTOM CHECK Are any of the LEDs illuminated? If yes, then the electronic fuse (U7) is in a fault state. Inspect for electrical shorts on the PCB and make sure that the PCB is not sitting on a conductive surface. If not, then exit the GUI and try running it again. If D20 still does not turn green, then exit the GUI and try connecting the USB cable to a different USB port on the PC and wait for a Windows message that states the hardware is ready to use. Run the GUI again. If not, then the PCB may not be getting power from the USB. Try a different USB cable or a different USB port. Jumper J1 Make sure jumper J1 is installed to power the MAX34460. Is the LED labeled D20 red? GUI says hardware not found. No slave address found and read/writes fail Channels do not turn on Margining is not working, voltage is not changing SOLUTION Does the LED labeled D21 turn green when the GUI is running? Jumper J23 Make sure 4 jumpers on J23 are installed. Is there a CONTROL# fault on the Status Tab of the GUI? Default configuration Control is active high. Make sure S1 and S2 are in the high position Is the ALERT LED on and all channel LEDs off? If so, make sure switch PSEN (S6) is in the on position to connect the PSENs of MAX34460 to the channels. Is the ALERT LED on and Channel 0 LED on? If so, make sure switch RS (S5) is in the on position to connect the power-supply outputs to the MAX34460. S4 Make sure the DAC (S4) switch is in the on position to connect the DACs from DS4424 to FB of channels 0–3 Component List DESIGNATION C0A–C0D, C2A–C2D, C20, C22, C25, C201, C202, C204 QTY DESCRIPTION 14 10FF, X5R ceramic capacitors (0805) Taiyo Yuden EMK212ABJ106KD-T C01, C05, C211 3 1FF, X7R ceramic capacitors (0805) Murata GRM21BR71A105KA01K C06 0 Capacitor, do not populate C1A–C1D, C04, C21, C24, C203, C214 9 0.01FF, X7R ceramic capacitors (0805) TDK C2012X7R1H103KT C02, C03, C07–C11, C212 8 0.1FF, X7R ceramic capacitors (0805) TDK CGJ4J2X7R1H104K C23 0 C213 1 Do not populate, 470FF aluminum capacitor 220nF, X7R ceramic capacitor (0805) TDK CGJ4J2X7R1H224K C215 0 Do not populate, ceramic capacitor (0805) D1, D22 2 Schottky diodes Panasonic DB2W31900L Maxim Integrated DESIGNATION QTY DESCRIPTION D2, D3, D4, D7, D8, D9, DA–DD 10 Red LEDs (1206) Kingbright APTR3216EC D5, D6 2 Green LEDs (1206) Lumex SML-LX1206GC-TR D20, D21 2 Red/green dual LEDs Kingbright APHB M2012SURKCGKC J1 1 2-pin header, 2.54mm pitch 961102-6404-AR J2, J22 2 4-pin headers, 2.54mm pitch 961104-6804-AR J3 1 3-pin header, 2.54mm pitch 961103-6404-AR J4 1 Black banana jack (GND) 571-0100 J5–J12, J21 0 Do not populate, headers J20 1 5-pin female USB-mini header 54819-0519 J23 1 8-pin (2 x 4) header 961104-6804-AR Q1, Q2 2 60V, 340mA nMOSFETs (SC70) ON Semi 2N7002WT1G   16 MAX34460 Evaluation Kit Evaluates: MAX34460 Component List (continued) DESIGNATION R0–R11, R16, R17, R36, R37, R102, R107, R108, R117, R201, R202, R214 R0A–R0D, R77, R79–R91, R103, R109, R112, R113, R119, R123, R125, R127, R133, R135, R136, R204 R1A–R1D R2A–R2D QTY 23 29 DESCRIPTION 0I Q1% resistors (0805) Vishay CRCW08050000Z0EA 100kI Q1% resistors (0805) Vishay CRCW0805100KFKEA 4 8.66kI Q1% resistors (0805) Vishay CRCW08058K660FKEA 4 3.09kI Q1% resistors (0805) Vishay CRCW08053K09FKEA DESIGNATION QTY DESCRIPTION R115 1 4kI Q1% resistor (0805) Vishay CRCW08054K00FKTA R160, R163, R206 3 45.3kI Q1% resistors (0805) Vishay CRCW080545K3FKEA R203, R205 2 560I Q1% resistors (0805) Vishay CRCW0805560RFKEA S1, S2 2 Slide-switch SPDTs SLS121PC04 S3 1 Single-pole pushbutton KSR221G LFS S4, S5, S6 3 4-pole DIP switches BD04 TP1 10 Red test points Keystone 5010 TP2–TP6, TP9, TP10, TP11 8 Black test points Keystone 5011 TP7, TP44 2 Orange test points Keystone 5013 R101, R116, R161, R164, R207 5 10kI Q1% resistors (0805) Vishay CRCW080510K0FKEB TP8, TP43 2 Yellow test points Keystone 5014 R3A–R3D 4 49.9I Q1% resistors (0805) Vishay CRCW080549R9FKEA TP12–TP42, TP50 32 White test points Keystone 5012 R4A–R4D 4 267I Q1% resistors (0805) Vishay CRCW0805267RFKEA U1 1 R5A–R5D 4 1kI Q1% resistors (0805) Vishay CRCW08051K00FKEA PMBus 12-channel voltage monitor (48 TQFN-EP*) Maxim MAX34460ETM+ U1A–U1D, U4, U5, U22 7 500mA LDO regulators, (8 TDFN-EP*) Maxim MAX8902BATA+ U2 1 Digital temperature sensor (8 SO, 150 mil) Maxim DS75LVS+ R20–R31, R40–R51, R76, R78, R110, R121, R132, R134, R162, R215, R216 0 R56–R59 4 150kI Q1% resistors (0805) Vishay CRCW0805150KFKEA U3 1 R100, R130, R131, R210 4 4.7kI Q1% resistors (0805) Vishay CRCW08054K70FKEA 4-channel sink/source current DAC (14 TDFN-EP*) Maxim DS4424N+ U20 1 R104, R114, R118, R120, R124, R126, R128, R137, R211, R212 Microcontroller (28 SO) Microchip PIC18LF2550-I/SO 10 330I Q1% resistors (0805) Vishay CRCW0805330RFKEA U21 1 50mA, -600mA current-limit switch (6 SOT23) Maxim MAX4995AAUT+ X1 1 R105, R106, R213 48MHz, 3.3V oscillator (SMD) AVX KC3225A48.0000C30E00 3 R111, R122 2 Do not populate, resistors (0805) 2.2kI Q1% resistors (0805) Vishay CRCW08052K20FKEA 330kI Q1% resistors (0805) Vishay CRCW0805330KFKTA — 5 Jumpers/shunts — 1 Mini-USB cable — 1 PCB: MAX34460 EV Kit *EP = Exposed pad. Maxim Integrated   17 10uF C20 VDD 3.3V GND SDA SCL 0 GND C21 R103 C08 R108 R107 R105 R106 2.2k 2.2k 0 0 S3 GND SDA SCL 0.1uF C07 R109 100k VDD SW-PB CONTROL 0.1uF 2 DNP 0.1uF GND FAULT2 R136 C03 D3 RED 330 R137 0.1uF VDD VLED C05 GND J3 4.7k 4.7k R130 R131 3.3V GND 0.01uF 1uF C04 500 mohm max ESR fromREG18 to GND RS4 RS3 RS2 RS1 RS0 1uF C01 RS4 RS3 RS2 RS1 RS0 A0/MON_OFF VDDA VREF FAULT CONTROL RST ALARMCLR VDD-VDUT J1 VDUT 1 2 3 4 5 A0/MONOFF 6 VDUT 7 VREF 8 FAULT 9 CONTROL 10 RST 11 12 ALARMCLR ALARMCLR VREF R111 330k R110 DNP C23 VDD DNP 470uF ALUM + VDD MONOFF DNP R162 VDD 2 D1 1 100 mohm max ESR C06 C02 GND 10uF R161 10k C22 3.3V 45.3k R160 D2 GND RED 330 R104 VDD 1 SW-SPDT 3 S1 3.3V 0.01uF VDD VLED I2C DONGLE 1 2 3 4 J2 8 7 6 5 FAULT R102 MAX8902B IIN OUT GND BYP EN FB GS POK 4.7k R100 R101 10k 100k 2 1 U4 VDUT REG18 1 2 3 4 FAULT2 2 WDI 5V R113 GND 1 2 3 4 PSEN4 PSEN3 PSEN2 PSEN1 PSEN0 RSG1 RSG0 CONTROL2 PG2 A1/PG ALERT ALARM1 DS75 8 7 6 5 D4 RED 330 SDA VCC SCL A0 O.S. A1 GND A2 U2 8 7 6 5 36 35 34 33 32 31 30 29 28 27 26 25 GND R114 VDD VLED MAX8902B IIN OUT GND BYP EN FB GS POK U5 WDO 1 2 3 4 100k R112 100k RS5 RS6 RS7 RS8 RS9 RS10 RS11 WDI 1 2 3 1 WDO PSEN7 PSEN6 PSEN5 48 47 46 45 44 43 42 41 40 39 38 37 RS5 RS6 RS7 RS8 RS9 RS10 RS11 WDI WDO PSEN7 PSEN6 PSEN5 SDA SCL VDD REG18 FAULT2 MSCL MSDA PSEN8 PSEN9 PSEN10 PSEN11 ALARM0 MSCL MSDA PSEN8 PSEN9 PSEN10 PSEN11 13 14 15 16 17 18 19 20 21 22 23 24 ALARM0 5V 100k R135 100k R133 100k GND R134 DNP R132 DNP 3.3V PSEN4 PSEN3 PSEN2 PSEN1 PSEN0 RSG1 RSG0 CONTROL2 PG2 A1/PG ALERT ALARM1 VLED 0.01uF U1 MAX34460 C24 0.1uF C10 C09 R119 PG2 3 1 SW-SPDT S2 ALERT J4 1 R117 GND R123 R125 ALARM0 R127 D9 RED 330 R128 VDD VLED D8 RED 330 R126 VDD VLED Q2 D7 RED. 330 R124 R116 2N7002 D6 GREEN R120 330 VLED GND PG VDD VLED R122 330k R121 DNP VDD 0 R115 3.3V GND GND GNDGNDGNDGNDGNDGNDGND BLACK BANANA JACK ALARM1 GND 2N7002 GREEN 330 D5 R118 VLED 2 100k Q1 CONTROL2 0.1uF 10uF R164 10k C25 45.3k R163 100k 100k 100k 4k Maxim Integrated 10k 5V WDO ALERT ALARM1 ALARM0 ALARMCLR WDI A0/MONOFF CONTROL FAULT CONTROL2 A1/PG FAULT2 PG2 1 2 3 4 5 6 DNP J6 1 2 3 4 5 6 7 8 J5 DNP 1 2 3 4 5 6 7 8 100 mil header testpoints MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 9a. MAX34460 EV Kit Schematic (Sheet 1 of 3)   18 100k R0C PSEN2' 100k R0D PSEN3' PSEN3 10uF C0D 5V 100k R0B PSEN1' PSEN2 10uF C0C 5V 100k R0A PSEN0' PSEN1 10uF C0B 5V 10uF C0A PSEN0 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 OUT BYP FB POK OUT BYP FB POK OUT BYP FB POK OUT BYP FB POK MAX8902B IN GND EN GS U1D MAX8902B IN GND EN GS U1C MAX8902B IN GND EN GS U1B MAX8902B IN GND EN GS U1A GND 8 7 6 5 GND 8 7 6 5 GND 8 7 6 5 GND 8 7 6 5 FB3 C1D VOUT3 FB2 C1C VOUT2 FB1 C1B VOUT1 FB0 C1A VOUT0 FB3 0.01uF FB2 0.01uF FB1 0.01uF FB0 0.01uF 10uF 3.09k DD L ED 10uF 1k R5D 267 R2D R4D R3D C2D VOUT3 1k R5C 8.66k 49.9 R1D 3.09k DC L ED 10uF 267 R2C R4C 1k R5B 8.66k 49.9 C2C VOUT2 10uF R3C R1C 3.09K DB L ED 267 R2B R4B 1k R5A R3B C2B VOUT1 DA L ED 8.66k 49.9 R1B 3.09k R2A 267 8.66k 49.9 C2A R4A R3A R1A VOUT0 RS3' RS2' RS1' RS0' RS3 RS2 RS1 RS0 GND R56 R57 R58 R59 PSEN0 PSEN1 PSEN2 PSEN3 PSEN4 PSEN5 PSEN6 PSEN7 PSEN8 PSEN9 PSEN10 PSEN11 RS0 RS1 RS2 RS3 RS4 RS5 RS6 RS7 RS8 RS9 RS10 RS11 150k 150k 150k 150k MSDA 1 MSCL 2 3 4 5 6 7 DS4424 SDA SCL GND FS3 FS2 FS1 FS0 U3 OUT3 VCC OUT2 A1 OUT1 A0 OUT0 VDD GND 0 0 0 0 0 0 0 0 0 0 0 0 14 13 12 11 10 9 8 GND R79 100k R78 DNP GND R77 100k R76 DNP 3.3V R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 J12 DNP 1 2 3 4 1 2 3 4 8 7 6 5 0.1uF C11 8 7 6 5 4-POL E DIP SW S6 1 2 3 4 DNP J7 RS0' RS1' RS2' RS3' RSG0 RSG1 4-POL E DIP SW S5 100 mil header testpoints 1 2 3 4 5 6 1 2 3 4 5 6 J11 DNP J9 DNP 1 2 3 4 5 6 1 2 3 4 5 6 J8 DNP 100 mil header testpoints DAC0 DAC1 DAC2 DAC3 0 0 PSEN0' PSEN1' PSEN2' PSEN3' GND R 36 R 20 R 21 R 22 R 23 R 24 R 25 R 26 R 27 R 28 R 29 R 30 R 31 DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP R 40 R 41 R 42 R 43 R 44 R 45 R 46 R 47 R 48 R 49 R 50 R 51 DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP DNP R 80 R 81 R 82 R 83 R 84 R 85 R 86 R 87 R 88 R 89 R 90 R 91 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k 100k R 37 0 Maxim Integrated 0 5V 1 2 3 4 8 7 6 5 4-POL E DIP SW S4 FB0 FB1 FB2 FB3 J10 1 2 DNP L ocated with RSx testpoints. R16 R17 DAC0 DAC1 DAC2 DAC3 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 9b. MAX34460 EV Kit Schematic (Sheet 2 of 3)   19 2 1 OUT VCC GND' DNP C215 4.7k R214 0 COM 1 VP P HB COM D22 R213 2.2k 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GND' D20B 560 R205 5V PICfor DS3900 MCL R P3,HB COM_L ED,BOOT P1 P2 RCV P6, CS GND OSC1 OSC2 P4 UOE PS_VAR VUSB U20 G reen OUT BYP FB POK MAX8902B IN GND EN GS P8,1W_P U P7,1W_DQ P5 USB_DET VP O VMO P10,SCK ,SCL P11,SDI ,SDA VDD GND P9,SDO ENUM D+,VP D-,VM 1 2 3 4 U22 28 27 26 25 24 23 22 21 20 19 18 17 16 15 8 7 6 5 D+ D- SCL ' SDA' C203 3.3V' 0.01uF USB-to-I2C Programming Board 220nF C213 5V' 10uF C202 OSC1 3.3V' R212 330 D21B R204 100k 1 2 3 GND' R211 330 D21A 3.3V' MAX4995A FL AG OUT IN GND ON SETI U21 C214 0.01uF 3 CL K 3.3V' 4 GND' 6 5 4 R210 C201 10uF R ed J21 2 1 DNP DD+ OSC_CMOS_4pin GND INH X1 J20 1 VBUS Vbus 2 0 R201 D3 0 R202 D+ 4 I.D. 5 GND USB_5P IN D20A R ed 560 G reen Maxim Integrated 2 R203 10k DNP 1uF GND' 0.1uF C212 3.3V' R216 DNP R215 3.3V' 10uF C204 C211 R207 45.3k R206 3.3V 1 2 3 4 5V' I2C DONGL E J22 1 3 5 7 2 4 6 8 SDA 5V SCL GND 5V 2x4 Header is the only connection between programming board and MAX34460 demo. J23 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 9c. MAX34460 EV Kit Schematic (Sheet 3 of 3)   20 MAX34460 Evaluation Kit Evaluates: MAX34460 Figure 10. MAX34460 EV Kit PCB Layout—Top Figure 11. MAX34460 EV Kit PCB Layout—Bottom Maxim Integrated   21 MAX34460 Evaluation Kit Evaluates: MAX34460 Ordering Information PART TYPE MAX34460EVKIT# EV Kit #Denotes an RoHS-compliant device that may include lead(Pb) that is exempt under the RoHS requirements. Maxim Integrated   22 MAX34460 Evaluation Kit Evaluates: MAX34460 Revision History REVISION NUMBER REVISION DATE 0 9/12 DESCRIPTION Initial release PAGES CHANGED — Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 ©  2012 Maxim Integrated Products, Inc. 23 Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.