Click here for production status of specific part numbers. MAX17613CEVKIT Evaluates: MAX17613C - 4.5V to 60V, Evaluation Kit 3A, Reverse-Voltage Protector with Forward Current Limit General Description Quick Start The MAX17613CEVKIT evaluation kit (EV kit) is a fully Recommended Equipment assembled and tested circuit board that demonstrates the MAX17613CEVKIT MAX17613C 4.5V to 60V, 3A, reverse-voltage protector 60V, 5A DC power supply with forward current limit and reverse current block in a 20-pin TQFN-EP package. The EV kit can be config- 4 Multimeters ured to demonstrate three current-limit types (Autoretry, Adjustable load (0A-3.5A) Continuous, Latchoff) and different current-limit thresholds USB-A male to USB-B male cable or 5V DC (from 0.15A to 3A). For more details about the IC benefits power supply and features, refer to the MAX17613 IC data sheet. Equipment Setup and Test Procedure Features The EV kit is fully assembled and tested. Follow the steps 4.5V to 40V Operating Voltage Range (Remove the below to verify board operation: TVS Diode to Extend the Operating Voltage Range Caution: Do not turn on power supply until all connec- up to 60V) tions are completed. Features a 40V TVS Diode (D1) across the Input and 1) Verify that all jumpers are in their default positions. Schottky Diode across the Output Terminals 2) Connect the USB cable to J1 from a computer or con- Evaluates Three Current-Limit Types and Current- nect a 5V-DC power supply to TP3. Limit Threshold 3) Verify that LED1 is on. Jumper-Configurable Current Limit 4) Verify the JU6 jumper is installed. Jumper-Configurable Current-Limit Type 5) Set the 60V DC power supply to 5V and connect to IN Programmable Startup Blanking Time (J2). Verify that OUT (J3/TP8) is 5V. Features Fault Indication Signals (FWD, REV) 6) Set the DC power-supply voltage to 24V and connect Proven PCB Layout the adjustable load between OUT and GND terminals Fully Assembled and Tested 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 0.3A. 7) The jumper JU1 can be configured to change the Ordering Information appears at end of data sheet. current limit (see Table 1). Verify various current-limit operations by repeating step 6. CAUTION: The negative input test should be performed by applying negative input voltage (VIN) across input ter- minals at J2 only when the output capacitors connected at the OUT terminals are fully discharged and 5V BUS at J1 is not supplied. 319-100347 Rev 0 4/19MAX17613CEVKIT Evaluates: MAX17613C - 4.5V to 60V, Evaluation Kit 3A, Reverse-Voltage Protector with Forward Current Limit Enable Detailed Description Connect a USB-A male connector from the computer The overcurrent threshold is determined by external resis- to the USB-B female connector, J1, or an external 5V tors connected to the SETI pin and is jumper-configurable supply to TP3 and GND. This provides 5V to V and through jumper JU1. Using jumper JU4, the EV kit circuit BUS to the EN pin (JU5 connects V to EN by default). can be configured to evaluate Autoretry, Continuous, and BUS Choose the JU5 setting to enable or disable operation of Latchoff current-limit types. LED1 on the EV kit indicates the MAX17613C (see Table 3). Driving the EN pin High availability of logic power for annunciation signals (FWD or Low makes the device enable or disable respectively. and REV) and EN. Device offers a programmable startup blanking time that enables charging the large capacitanc- es on the output during startup and when recovering from Table 1. Current-Limit Threshold (JU1) a fault condition. Connecting a capacitor from the TSTART Settings pin to GND programs the startup blanking time. The EV kit can be configured to enable or disable the IC operation SHUNT POSITION CURRENT-LIMIT THRESHOLD using Jumper JU5. For more details about the IC benefits 1-2 Adjustable using the resistor pot and features, refer to the MAX17613 IC data sheet. 3-4* 0.3A The EV kit provides on-board output capacitors to enable 5-6 1.5A a demonstration of the MAX17613C protection features. 7-8 3A Input Power Supply *Default Position The EV kit is powered by a user-supplied 4.5V to 60V power supply connected between input connector (J2) terminals. Table 2. Current-Limit Type Selection Setting the Current-Limit Threshold (JU4) The EV kit features a jumper (JU1) to select the current- SHUNT POSITION CURRENT-LIMIT TYPE limit threshold. Install a jumper as shown in Table 1 to 1-2 Latchoff change the current-limit threshold. The current limit can 2-3 Continuous be programmed between 0.15A to 3A. The current limit (I ) is programmed by the resistor R connected at LIM SETI Not Installed* Autoretry the SETI pin. Use the following equation to calculate the *Default Position current-limit setting resistor: 4500 R = Table 3. Enable (JU5) Settings SETI I LIM SHUNT MAX17613C DESCRIPTION where, POSITION OUTPUT I is the desired current limit in mA and R is in k. EN Connected to LIM SETI 1-2* ON V BUS Do not use R smaller than 1.5k. SETI EN pin Not Installed ON Current-Limit Type Selection Unconnected The EV kit features a jumper (JU4) to select different EN Connected to 2-3 OFF current-limit type responses (see Table 2) for jumper set- GND tings. For more details about each current-limit type, refer *Default Position to the MAX17613 IC data sheet. Maxim Integrated 2 www.maximintegrated.com