Evaluates: MAX14670/MAX14671 MAX14670 Evaluation Kit General Description Benefits and Features The MAX14670 evaluation kit (EV kit) is a fully assembled 3V to 28V Operating Voltage Range and tested circuit board that demonstrates the MAX14670 Evaluates Bidirectional OVLO and Adjustable OVLO and MAX14671 bidirectional current-blocking, high-input Proven PCB Layout overvoltage protectors with adjustable OVLO. The EV kit features LED output reading and a USB-powered option Fully Assembled and Tested for logic pins. Ordering Information appears at end of data sheet. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION R4 1 23.2k 1% resistor (0805) 1F 10%, 6.3V X5R ceramic C1, C2 2 capacitors (0603) R5 1 9.31k 1% resistor (0805) Murata GRM188R60J105KA01D 20k potentiometer R6 1 4.7F 20%, 6.3V X5R ceramic Bourns 3266W-1-203LF C3 1 capacitor (0603) R7R10 0 Not installed, resistors (0805) TDK C1608X5R0J475M080AB R17, R19 2 22k 5% resistors (0805) 0.1F 10%, 50V X7R ceramic TP1, TP8, C4, C5 2 capacitors (0603) TP10, TP11, 5 Red test points Murata GRM188R71H104KA93D TP18 1F 10%, 25V X5R ceramic TP2, TP3, TP9, 5 Black test points C6, C7 2 capacitors (0603) TP12, TP13 Murata GRM188R61E105KA12D TP4, TP14 2 White test points 0.1F 10%, 25V X7R ceramic TP5, TP15 2 Yellow test points C8 1 capacitor (0603) TP6, TP16 2 Orange test points Murata GRM188R71E104KA01D TP7, TP17 2 Green test points USB-B connector J1 1 FCI 61729-0010BLF Bidirectional overvoltage U1 1 protector (15 WLP) Power terminals J2J4 3 Maxim MAX14670EWL+ Phoenix Contact 1729018 JU1JU3, JU5, Bidirectional overvoltage 6 2-pin single-row headers JU7, JU8 U2 1 protector (15 WLP) JU4, JU6 2 3-pin single-row headers Maxim MAX14671EWL+ Red LED Dual inverter (6 SC70) LED1 1 U3 1 Lite-On LTST-C150EKT Fairchild NC7WZ04P6X Green LEDs LDO linear regulator (6 SOT23) LED2, LED3 2 U4 1 OSRAM Opto LG N971-KN-1 Maxim MAX8880EUT+ R1, R11, R12, 8 Shunts 5 1k 1% resistors (0805) R15, R16 1 PCB: MAX14670 EVKIT R2, R18, R20 3 100k 1% resistors (0805) R3, R13, R14 3 10k 1% resistors (0805) 19-6800 Rev 0 9/13Evaluates: MAX14670/MAX14671 MAX14670 Evaluation Kit Component Suppliers SUPPLIER PHONE WEBSITE Bourns, Inc. 408-496-0706 www.bourns.com FCI Electronics Interconnection Solutions 800-237-2374 www.fciconnect.com Lite-On, Inc. 408-946-4873 www.us.liteon.com Murata Americas 800-241-6574 www.murataamericas.com OSRAM Opto Semiconductors 888-446-7726 www.osram-os.com Phoenix Contact, Inc. 800-888-7388 www.phoenixcontact.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX14670 when contacting these component suppliers. Quick Start Table 1. LED Indicator (LED1LED3) Required Equipment LED DESCRIPTION MAX14670 EV kit LED1 is on when VBUS/5V supply for logic pins LED1 is powered. 25V DC power supply LED2 LED2 is on when MAX14670 ACOK is asserted. Multimeter LED3 LED3 is on when MAX14671 ACOK is asserted. USB-A male to USB-B male cable or 5V DC power supply Table 2. Pullup Voltage (JU1JU3) Procedure SHUNT JUMPER DESCRIPTION The EV kit is fully assembled and tested. Follow the steps POSITION below to verify board operation : Installed* V is set to 1.8V through R4. CC JU1 1) Verify that all jumpers are in their default positions. Not installed V is not set through R4. CC 2) Connect the USB cable to J1 from a computer Installed V is set to 2.6V through R5. CC (or connect 5V DC power supply to TP8). JU2 Not installed* V is not set through R5. CC 3) Verify LED1 is on. Installed V is set through R6 (variable). CC JU3 4) Conn ect 6V DC power supply to TP1. Verify OUT Not installed* V is not set through R6. CC (TP18) is 6V and LED2 is on. *Default position. 5) Increase voltage on DC power supply to TP1. Verify OUT voltage goes down and LED2 is off when input Detailed Description of Hardware reaches about 6.8V (OVLO). The MAX14670 EV kit is a fully assembled and tested cir- 6) Turn off the power supply and remove it from TP1. cuit board demonstrating the MAX14670 and MAX14671 Connect it to TP11 and set the voltage to 15V. bidirectional current-blocking, high-input overvoltage 7) Turn on the power supply and verify OUT (TP18) is protector IC in a 15-bump surface-mount wafer-level 15V and LED3 is on. package (WLP). 8) Increase voltage on DC power supply to TP11. Verify The EV kit also features LEDs to indicate the power for OUT voltage goes down and LED3 is off when input logic pins and ACOK status (see Table 1). reaches about 15.5V (OVLO). Pullup Voltage The EV kit features jumpers to select pullup voltage (V ) CC for OTG EN. Install a jumper in positions shown in Table 2 to change the voltage. Maxim Integrated 2 www.maximintegrated.com