Click here for production status of specific part numbers. Evaluates: MAX17612C MAX17612C Evaluation Kit 4.5V to 60V, 250mA, Current-Limiter with Reverse Protection General Description Quick Start The MAX17612C evaluation kit (EV kit) is a fully assem- Recommended Equipment bled and tested circuit board that demonstrates the MAX17612C EV kit MAX17612C 4.5V to 60V, 250mA, current-limiter with 60V DC power supply reverse protection in a 10-pin TDFN-EP package. The EV kit can be configured to demonstrate different current-limit Multimeters types, and different current-limit thresholds. Adjustable load (0A1A) USB-A male to USB-B male cable or 5V DC power Features supply 4.5V to 60V Operating-Voltage Range Equipment Setup and Test Procedure Features a TVS Diode across the Input and Schottky Diode across the Output Terminals The EV kit is fully assembled and tested. Follow the steps below to verify board operation. Evaluates three Current-Limit Types, and Current- Limit Threshold Caution: Do not turn on the power supply until all connections are completed. Internal UVLO set to 4.2V 1) Verify that all jumpers are in their default positions. Jumper-Configurable Current-Limit (Selected as 250mA by Default) 2) Connect the USB cable to J1 from a computer or con- nect a 5V-DC power supply to TP3. Current-Limit Mode Set To Autoretry by default 3) Verify that LED1 is on. Proven PCB Layout 4) Set the 60V DC power supply to 5V and connect to IN Fully Assembled and Tested (J2/TP6). Verify that OUT (J3/TP8) is 5V. 5) Set the DC power-supply voltage to 24V and Ordering Information appears at end of data sheet. connect the adjustable load between OUT and GND terminals and a multimeter in series to measure the current. Gradually increase the load current and verify that the OUT goes down and FWD goes low when the load current increases above 250mA. 6) The jumper JU1 can be configured to change the current limit as given in Table 2. Verify various current limit operations by repeating step 5. CAUTION: When applying a negative input to V , the IN negative input test should be performed when the output capacitors are fully discharged and V is not supplied. BUS 319-100253 Rev 0 9/18Evaluates: MAX17612C MAX17612C Evaluation Kit 4.5V to 60V, 250mA, Current-Limiter with Reverse Protection an external 5V supply to TP3 and GND. This provides 5V Detailed Description to V and to the EN pin (JU5 connects V to EN BUS BUS The EV kit circuit can be configured to evaluate the by default). Choose the JU5 setting to enable or disable overcurrent threshold by external resistors connected to operation of the MAX17612C (see Table 1). the SETI pin and is jumper-configurable through jumper JU1. Using jumper JU4, the EV kit circuit can be config - Current-Limit Threshold ured to evaluate different current limit types (Autoretry, The EV kit features a jumper (JU1) to select the current- Continuous, and Latch-off). LED1 on the EV kit indicates limit threshold. Install a jumper as shown in Table 2 to availability of logic power for annunciation signals (FWD change the current-limit threshold. and REV) and EN. Current-Limit Type Select The EV kit provides on-board output capacitors to enable The EV kit features jumper JU4 to select different current- a demonstration of the MAX17612C protection features. limit responses. See Table 3 for jumper settings. Input-Power Supply Output-Load Capacitor The EV kit is powered by a user-supplied 4.5V to Use JU6 to connect the OUT pins to the OUT test point 60V power supply connected between J2/TP6 (INPUT (TP8). Use jumper JU7 to connect output to 330F capac- POWER) and GND. itors. See Table 4 for jumper settings Enable To enable the device, connect a USB-A male connector from the computer to the USB-B female connector, J1, or Table 1. Enable (JU5) JUMPER SHUNT POSITION DESCRIPTION MAX17612C STATUS 1-2* EN pin connected to V ON BUS JU5 2-3 EN pin connected to GND OFF Open EN pin floating ON *Default position. Table 2. Current-Limit Threshold (JU1) Table 3. Current-Limit Type Select (JU4) JUMPER SHUNT POSITION DESCRIPTION JUMPER SHUNT POSITION DESCRIPTION 1-2 Latch-off 1-2 Current limit 10mA JU4 2-3 Continuous 3-4 Current limit 100mA JU1 Open* Autoretry 5-6* Current limit 250mA *Default position. 7-8 Current limit adjustable *Default position. Table 4. Output Load Capacitor (JU7) JUMPER SHUNT POSITION DESCRIPTION OUT connected to C4 Installed and C5. JU7 OUT not connected to Not installed* C4 and C5. *Default position. Maxim Integrated 2 www.maximintegrated.com