MAX17525EVKIT# Analog Devices

Evaluates: MAX17525 MAX17525 Evaluation Kit General Description Quick Start The MAX17525 evaluation kit (EV kit) is a fully assembled Required Equipment and tested circuit board that demonstrates the MAX17525 MAX17525 EV kit overvoltage, undervoltage, and overcurrent protection 40V DC power supply device. The EV kit features an external pMOSFET and LED input and output reading. The EV kit comes with the 5V DC power supply MAX17525ATP+ installed. Request samples from Maxim Multimeter when ordering the EV kit. Procedure Features The EV kit is fully assembled and tested. Follow the steps 5.5V to 60V Operating Voltage Range below to verify board operation: External pMOSFET Installed 1) Verify that all jumpers are in their default positions. 2) Set the 40V DC power supply to 10V and connect to Proven PCB Layout V (TP1). IN Fully Assembled and Tested 3) Connect the 5V DC power supply to VIO (TP21). 4) Turn on both power supplies. Verify that LED1 is on, and FLAG (TP15) is 0V. Ordering Information appears at end of data sheet. 5) Increase voltage on the DC power supply to TP1 and verify that LED2 turns on when voltage reaches ~12.4V. Also check that voltage on V (TP5) is OUT ~12.4V and FLAG (TP15) is 5V. 6) Increase voltage on the DC power supply to TP1 and verify that LED2 turns off when voltage reaches ~36.2V. Also check that voltage on V (TP5) goes OUT down and FLAG (TP15) is 0V. 7) Decrease voltage on the DC power supply to TP1 and verify that LED2 turns on when voltage reaches ~34.1V. Also check that voltage on V (TP5) is OUT ~34.1V and FLAG (TP15) is 5V. 8) Decrease voltage on the DC power supply to TP1 and verify that LED2 turns on when voltage reaches ~12V. Also check that voltage on V (TP5) goes OUT down and FLAG (TP15) is 0V. 19-8567 Rev 0 /16 Evaluates: MAX17525 MAX17525 Evaluation Kit Enable Inputs (EN, HVEN) Detailed Description of Hardware Use jumpers JU1 and JU12 to enable the device (see The MAX17525 EV kit is a fully assembled and tested Table 2 for jumper settings and Table 3 for enable switch circuit board demonstrating the MAX17525 overvoltage, status). undervoltage, and overcurrent protection device in a 20-pin surface-mount TQFN-EP package. Overvoltage-Lockout Threshold (OVLO) The EV kit also features LEDs to indicate the power for Use jumpers JU3 and JU5 to select internal or external input and output (see Table 1). OVLO threshold. Install a shunt on either JU3 or JU5, but not both at the same time (see Table 4 for jumper settings). Table 1. LED Indicator (LED1, LED2) Undervoltage-Lockout Threshold (UVLO) LED DESCRIPTION Use jumpers JU4 and JU6 to select internal or external LED1 LED1 is on when IN is powered UVLO threshold. Install a shunt on either JU4 or JU6, but LED2 LED2 is on when OUT is powered not both at the same time (see Table 5 for jumper settings). Table 2. Enable Inputs Jumper Settings Table 4. OVLO Threshold Jumper Settings (JU1, JU12) (JU3, JU5) SHUNT SHUNT JUMPER DESCRIPTION JUMPER DESCRIPTION POSITION POSITION 1-2 HVEN is connected to VIN OVLO is connected to ground JU1 Installed* nternal OVLO threshold is 2-3* HVEN is connected to GND JU3 used (do not install JU5) Installed EN is high JU12 Not installed OVLO is open Not installed* EN is low OVLO is connected to external *Default position. voltage-divider use R2/R3 or Installed R6 to set overvoltage threshold JU5 (do not install JU3) Table 3. Enable Inputs Switch Status Not installed* OVLO is open EN HVEN SWITCH STATUS *Default position. 0 0 On 1 0 On 0 1 Off 1 1 On Table 5. UVLO Threshold Jumper Settings (JU4, JU6) SHUNT JUMPER DESCRIPTION POSITION Installed* UVLO is connected to ground internal UVLO threshold is used (do not install JU6) JU4 Not installed UVLO is open UVLO is connected to external voltage-divider use R4/R5 or R7 to set undervoltage Installed threshold (do not install JU4) JU6 Not installed* UVLO is open *Default position. Maxim Integrated 2 www.maximintegrated.com