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 devices different current-limit types, adjustable overvolt - age, undervoltage, and current-limit threshold. benefts 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 19-6694; rev 0; 5/13 ordering information appears at end of data sheet. designation qty description c1 1 1f 10%, 25v x5r ceramic capacitor (0603) murata grm188r61e105ka12d c2 1 0.1f 10%, 25v x7r ceramic capacitor (0603) murata grm188r71e104ka01d c3 1 0.47f 10%, 50v x5r ceramic capacitor (0603) tdk c1608x5r1h474k080ab c4 1 1f 10%, 50v x7r ceramic capacitor (1206) murata grm31mr71h105ka61l c7 1 330f 20%, 50v radial capacitor panasonic eeu-eb1h331 c8 0 not installed, capacitor panasonic eeu-eb1h331 d1 1 36v tvs diode stmicro sm6t36ca d2 1 60v, 1a schottky diode stmicro stps1l60a j1 1 usb type-b connector fci 61729-0010blf designation qty description j2, j3 2 power terminals phoenix contact 1729018 ju1 1 8-pin (2 x 4) header ju3Cju5, 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 1k? 1% resistors (0805) r2 1 10k? 1% resistor (0805) r4, r13, r14, r17 4 100k? 1% resistors (0805) r5, r10, r12 0 not installed, resistors (0805) r6 1 40.2k? 1% resistor (0805) r7 1 12.1k? 1% resistor (0805) r8 1 6.2k? 1% resistor (0805) r9, r11 2 2.2m? 5% resistors (0805) component list evaluates: max14588 max14588 evaluation kit
maxim integrated 2 note: indicate that you are using the max14588 when contacting these component suppliers. * ep = exposed pad. 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 component list (continued) designation qty description r15 1 4.7k? 1% resistor (0805) r16 1 50k? potentiometer bourns 3296w-1-503lf tp1 1 white test point tp2, tp4, tp5, tp7 4 black test points tp3, tp6, tp8 3 red test points tp9 1 purple test point tp10 1 green test point tp11 1 grey test point designation qty description u1 1 overcurrent and overvoltage protector (16 tqfn-ep*) maxim max14588ete+ (top mark: ajz) u2 1 dual buffer (sc70 6l) fairchild nc7wz07p6x 11 shunts 1 pcb: max14588 evkit component suppliers evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
maxim integrated 3 quick start 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. detailed description of hardware the max14588 ev kit is a fully assembled and tested circuit board that demonstrates the max14588 1a adjust - able overcurrent and overvoltage protector ic in a 16-pin surface-mount tqfn-ep package. using jumper ju1, the ev kit circuit can be configured to evaluate different current-limit thresholds with a different resistor on seti. using jumpers ju3Cju5, 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 (autore - try, latchoff, and continuous). the ev kit also features leds to indicate the power for logic pins and flag status. 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 (k ) seti i (ma) lim ?= uvlo/ovlo threshold use jumpers ju3Cju5 to select uvlo and ovlo thresh - old. see table 3 for jumper settings. * default position. * default position. led name description led1 power led1 is on when the vbus/5v supply for the logic pins is powered. led2 flag led2 is on when flag is asserted. jumper shunt position description ju3 installed* uvlo connected to ground. internal uvlo threshold is selected. not installed uvlo not connected to ground. install ju5 to use external resistors to set uvlo threshold. ju4 installed* ovlo connected to ground. internal ovlo threshold is selected. not installed ovlo not connected to ground. install ju5 to use external resistors to set ovlo threshold. ju5 installed use external resistors to set the ovlo/uvlo threshold. not installed* not using external resistors to set the ovlo/uvlo threshold. jumper shunt position description ju1 1-2* current limit 0.15a 3-4 current limit 0.5a 5-6 current limit 0.98a 7-8 current limit adjustable table 1. led indicator table 3. uvlo/ovlo threshold (ju3Cju5) table 2. current-limit threshold (ju1) evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
maxim integrated 4 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. 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 330f capacitor. see table 9 for jumper settings. * default position. * default position. * default position. * default position. jumper shunt position description ju6 1-2 hven connected to in through 100k?. 2-3* hven connected to ground. ju8 installed* en connected to vbus. not installed en connected to ground through 100k?. jumper shunt position description ju13 installed out connected to c7 and c8. not installed* out not connected to c7 and c8. jumper shunt position description ju9 installed* rien connected to vbus. not installed rien connected to ground through 100k?. jumper shunt position description ju12 1-2* clts_mode high. clts1 and clts2 are sampled continuously. 2-3 clts_mode low. clts1 and clts2 are sampled only when v in - v out < 0.6v. ju14 1-2* clts1 high. 2-3 clts1 low. ju15 1-2 clts2 high. 2-3* clts2 low. hven en switch status 0 0 on 0 1 on 1 0 off 1 1 on clts2 clts1 current-limit type 0 0 latchoff 0 1 autoretry 1 0 continuous 1 1 continuous table 4. switch control (ju6, ju8) table 9. output load capacitor (ju13) table 6. reverse-current block enable (ju9) table 7. current-limit type select (ju12, ju14, ju15) table 5. enable inputs table 8. logic inputs evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
maxim integrated 5 figure 1. max14588 ev kit schematic evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
maxim integrated 6 figure 2. max14588 ev kit component placement guide component side figure 3. max14588 ev kit pcb layoutcomponent side figure 4. max14588 ev kit pcb layoutsolder side evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
maxim integrated 7 # denotes rohs compliant. part type MAX14588EVKIT# ev kit ordering information evaluates: max14588 max14588 evaluation kit www.maximintegrated.com
? 2013 maxim integrated products, inc. 8 revision number revision date description pages changed 0 5/13 initial release revision history 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 specifcations without notice at any time. maxim integrated and the maxim integrated logo are trademarks of maxim integrated products, inc. evaluates: max14588 max14588 evaluation kit for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxim integrateds website at www.maximintegrated.com.
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