MAX14588 Evaluation Kit General Description The MAX14588 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the MAX14588 adjustable overcurrent and overvoltage protector. The EV kit features TVS diode on input and Schottky diode on output. Input power to the EV kit uses a 4.5V to 36V input supply. The EV kit circuit can be configured to demonstrate the device’s different current-limit types, adjustable overvoltage, undervoltage, and current-limit threshold. Evaluates: MAX14588 Benefits and Features ● 4.5V to 36V Operating Voltage Range ● Features TVS Diode and Schottky Diode ● Evaluates Three Current-Limit Types, Current-Limit Threshold, OVLO, and UVLO ● Proven PCB Layout ● Fully Assembled and Tested Ordering Information appears at end of data sheet. Component List DESIGNATION QTY C1 1 1µF ±10%, 25V X5R ceramic capacitor (0603) Murata GRM188R61E105KA12D 1 0.1µF ±10%, 25V X7R ceramic capacitor (0603) Murata GRM188R71E104KA01D C3 1 0.47µF ±10%, 50V X5R ceramic capacitor (0603) TDK C1608X5R1H474K080AB C4 1 1µF ±10%, 50V X7R ceramic capacitor (1206) Murata GRM31MR71H105KA61L 1 330µF ±20%, 50V radial capacitor Panasonic EEU-EB1H331 0 Not installed, capacitor Panasonic EEU-EB1H331 1 36V TVS diode STMicro SM6T36CA 1 60V, 1A Schottky diode STMicro STPS1L60A 1 USB type-B connector FCI 61729-0010BLF C2 C7 C8 D1 D2 J1 19-6694; Rev 0; 5/13 DESCRIPTION DESIGNATION QTY DESCRIPTION J2, J3 2 Power terminals Phoenix Contact 1729018 JU1 1 8-pin (2 x 4) header JU3–JU5, JU8, JU9, JU13 6 2-pin headers JU6, JU12, JU14, JU15 4 3-pin headers LED1 1 Green LED Lumex SML-LX1206GW-TR LED2 1 Red LED Lite-On LTST-C150CKT R1, R3 2 1kΩ ±1% resistors (0805) R2 1 10kΩ ±1% resistor (0805) R4, R13, R14, R17 4 100kΩ ±1% resistors (0805) R5, R10, R12 0 Not installed, resistors (0805) R6 1 40.2kΩ ±1% resistor (0805) R7 1 12.1kΩ ±1% resistor (0805) R8 1 6.2kΩ ±1% resistor (0805) R9, R11 2 2.2MΩ ±5% resistors (0805) MAX14588 Evaluation Kit Evaluates: MAX14588 Component List (continued) DESIGNATION QTY DESCRIPTION R15 1 4.7kΩ ±1% resistor (0805) R16 1 50kΩ potentiometer Bourns 3296W-1-503LF DESIGNATION QTY DESCRIPTION U1 1 Overcurrent and overvoltage protector (16 TQFN-EP*) Maxim MAX14588ETE+ (Top Mark: AJZ) TP1 1 White test point TP2, TP4, TP5, TP7 4 Black test points U2 1 Dual buffer (SC70 6L) Fairchild NC7WZ07P6X TP3, TP6, TP8 3 Red test points — 11 Shunts TP9 1 Purple test point — 1 PCB: MAX14588 EVKIT TP10 1 Green test point TP11 1 Grey test point *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Bourns, Inc. 951-781-5500 www.bourns.com Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com FCI Electronics Interconnection Solutions 800-237-2374 www.fciconnect.com Lite-On, Inc. 408-946-4873 www.us.liteon.com Lumex Inc. 800-278-5666 www.lumex.com Murata Americas 800-241-6574 www.murataamericas.com Panasonic Corp. 800-344-2112 www.panasonic.com Phoenix Contact, Inc. 800-888-7388 www.phoenixcontact.com STMicroelectronics 408-452-8585 www.us.st.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX14588 when contacting these component suppliers. www.maximintegrated.com Maxim Integrated │ 2 MAX14588 Evaluation Kit Quick Start Detailed Description of Hardware The MAX14588 EV kit is a fully assembled and tested circuit board that demonstrates the MAX14588 1A adjustable overcurrent and overvoltage protector IC in a 16-pin surface-mount TQFN-EP package. Required Equipment ● MAX14588 EV kit ● 36V DC power supply ● Multimeter ● USB-A male to USB-B male cable or 5V DC power supply Procedure The EV kit is fully assembled and tested. Follow the steps below to verify board operation: 1) Verify that all jumpers are in their default positions. 2) Connect the USB cable to J1 from a computer or connect a 5V DC power supply to TP3. 3) Verify that LED1 is on. 4) Connect a 20V DC power supply to IN. Verify that OUT is 20V. 5) Increase voltage on the DC power supply and verify that the OUT voltage goes down and LED2 is on when input reaches approximately 33V. 6) Decrease voltage on the DC power supply and verify that OUT goes back and LED2 is off when the input reaches approximately 32V. Table 1. LED Indicator LED LED1 LED2 Evaluates: MAX14588 NAME FLAG Current-Limit Threshold The EV kit features a jumper (JU1) to select current-limit threshold. Install a jumper as shown in Table 2 to change the current-limit threshold. Use the following equation to calculate the current limit: 6100 R SETI ( kΩ ) = ILIM (mA) UVLO/OVLO Threshold Use jumpers JU3–JU5 to select UVLO and OVLO threshold. See Table 3 for jumper settings. Table 2. Current-Limit Threshold (JU1) DESCRIPTION POWER Using jumper JU1, the EV kit circuit can be configured to evaluate different current-limit thresholds with a different resistor on SETI. Using jumpers JU3–JU5, the EV kit circuit can be configured to evaluate the internal OVLO/UVLO threshold or external threshold using a resistor-divider. Using jumpers JU14 and JU15, the EV kit circuit can be configured to evaluate different current-limit types (autoretry, latchoff, and continuous). The EV kit also features LEDs to indicate the power for logic pins and FLAG status. LED1 is on when the VBUS/5V supply for the logic pins is powered. JUMPER SHUNT POSITION JU1 LED2 is on when FLAG is asserted. DESCRIPTION 1-2* Current limit 0.15A 3-4 Current limit 0.5A 5-6 Current limit 0.98A 7-8 Current limit adjustable *Default position. Table 3. UVLO/OVLO Threshold (JU3–JU5) JUMPER SHUNT POSITION JU3 JU4 JU5 Installed* Not installed Installed* Not installed Installed Not installed* DESCRIPTION UVLO connected to ground. Internal UVLO threshold is selected. UVLO not connected to ground. Install JU5 to use external resistors to set UVLO threshold. OVLO connected to ground. Internal OVLO threshold is selected. OVLO not connected to ground. Install JU5 to use external resistors to set OVLO threshold. Use external resistors to set the OVLO/UVLO threshold. Not using external resistors to set the OVLO/UVLO threshold. *Default position. www.maximintegrated.com Maxim Integrated │ 3 MAX14588 Evaluation Kit Evaluates: MAX14588 Switch Control The EV kit features two jumpers (JU6, JU8) to enable or disable the switch. See Table 4 for jumper settings. Reverse-Current Block Enable Use jumper JU9 to enable or disable the reverse-current flow protection. The reverse-current block is enabled when RIEN is logic-high. See Table 6 for jumper settings. Table 4. Switch Control (JU6, JU8) SHUNT POSITION JUMPER JU6 JU8 DESCRIPTION 1-2 HVEN connected to IN through 100kΩ. 2-3* HVEN connected to ground. Installed* EN connected to VBUS. Not installed EN connected to ground through 100kΩ. Current-Limit Type Select The EV kit features jumpers JU12, JU14, JU15 to select different current-limit type and sampled time. See Table 7 for jumper settings. Output Load Capacitor Use jumper JU13 to connect output to 330µF capacitor. See Table 9 for jumper settings. Table 7. Current-Limit Type Select (JU12, JU14, JU15) JUMPER SHUNT POSITION 1-2* CLTS_MODE high. CLTS1 and CLTS2 are sampled continuously. 2-3 CLTS_MODE low. CLTS1 and CLTS2 are sampled only when VIN - VOUT < 0.6V. 1-2* CLTS1 high. 2-3 CLTS1 low. 1-2 CLTS2 high. 2-3* CLTS2 low. JU12 *Default position. JU14 Table 5. Enable Inputs DESCRIPTION HVEN EN SWITCH STATUS 0 0 On 0 1 On *Default position. 1 0 Off 1 1 On Table 8. Logic Inputs Table 6. Reverse-Current Block Enable (JU9) JUMPER SHUNT POSITION JU9 DESCRIPTION Installed* RIEN connected to VBUS. Not installed RIEN connected to ground through 100kΩ. *Default position. JU15 CLTS2 CLTS1 CURRENT-LIMIT TYPE 0 0 Latchoff 0 1 Autoretry 1 0 Continuous 1 1 Continuous Table 9. Output Load Capacitor (JU13) JUMPER SHUNT POSITION DESCRIPTION Installed OUT connected to C7 and C8. Not installed* OUT not connected to C7 and C8. JU13 *Default position. www.maximintegrated.com Maxim Integrated │ 4 MAX14588 Evaluation Kit Evaluates: MAX14588 Figure 1. MAX14588 EV Kit Schematic www.maximintegrated.com Maxim Integrated │ 5 MAX14588 Evaluation Kit Figure 2. MAX14588 EV Kit Component Placement Guide— Component Side Evaluates: MAX14588 Figure 3. MAX14588 EV Kit PCB Layout—Component Side Figure 4. MAX14588 EV Kit PCB Layout—Solder Side www.maximintegrated.com Maxim Integrated │ 6 MAX14588 Evaluation Kit Evaluates: MAX14588 Ordering Information PART TYPE MAX14588EVKIT# EV Kit #Denotes RoHS compliant. www.maximintegrated.com Maxim Integrated │ 7 MAX14588 Evaluation Kit Evaluates: MAX14588 Revision History REVISION NUMBER REVISION DATE 0 5/13 DESCRIPTION Initial release PAGES CHANGED — 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. 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. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2013 Maxim Integrated Products, Inc. │ 8