MAX14691EVKIT# Analog Devices

Evaluates: MAX14691MAX14693 MAX14691 Evaluation Kit General Description Quick Start The MAX14691 evaluation kit (EV kit) is a fully Required Equipment assembled and tested circuit board that demonstrates the MAX14691 EV kit MAX14691 overvoltage, undervoltage, and overcurrent- 40V DC power supply protection device. The EV kit features an external pMOSFET and LED input and output reading. The EV kit 5V DC power supply comes with the MAX14691ATP+ installed, but can also Multimeter be used to evaluate the pin-compatible MAX14692 and MAX14693 devices with IC replacement of U1. Request Procedure samples from Maxim when ordering the EV kit. The EV kit is fully assembled and tested. Follow the steps below to verify board operation: Features 1) Verify that all jumpers are in their default positions. 5.5V to 58V Operating Voltage Range 2) Set the 40V DC power supply to 10V and connect to External pMOSFET Installed V (TP1). IN 3) Connect the 5V DC power supply to VIO (TP21). Proven PCB Layout 4) Turn on both power supplies. Verify that LED1 is on, Fully Assembled and Tested and FLAG (TP15) is 0V. 5) Increase voltage on the DC power supply to TP1 and verify that LED2 turns on when voltage reaches Ordering Information appears at end of data sheet. ~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. 19-6207 Rev 1 3/16Evaluates: MAX14691MAX14693 MAX14691 Evaluation Kit Enable Inputs (EN, HVEN) Detailed Description of Hardware Use jumpers JU1 and JU12 to enable the device (see The MAX14691 EV kit is a fully assembled and tested Table 2 for jumper settings and Table 3 for enable switch circuit board demonstrating the MAX14691 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