Click here to ask about the production status of specific part numbers. Evaluates: MAX40201 MAX40201 Evaluation Kit General Description Quick Start The MAX40201 evaluation kit (EV kit) provides a proven Required Equipment design to evaluate the MAX40201 dual-channel, high- The following items are required for operation: precision, high-voltage, current-sense amplifier. This EV MAX40201 EV kit kit demonstrates the MAX40201 in an ultra-small, 1.3mm x 2mm, 8-bump wafer-level package (WLP). +3.3V, 1A DC power supply The EV kit PCB comes with a MAX40201WAWA+ installed, +5V, 3A DC power supply which is the 200V/V gain version. Other gain options are An electronic load capable of sinking 3A available. Contact the factory for the pin-compatible (i.e., HP6060B) MAX40201TAWA+ (G = 25V/V), MAX40201FAWA+ (G = Two digital voltmeters 50V/V), and MAX40201HAWA+ (G = 100V/V). Procedure EV Kit Contents The MAX40201 EV kit is fully assembled and tested. MAX40201 EV Kit Board Follow the steps below to verify the board operation. Caution: Do not turn on power supply or the electronic Features load until all connections are made. Precision Real-Time Current Monitoring 1) Connect the positive terminal of the +3.3V supply to 0V to +76V Input Common-Mode Range the VDD test point and the negative terminal of the Proven PCB Layout supply to the nearest GND test point. Fully Assembled and Tested 2) Connect the positive terminal of the +5V supply to the VSENSE+ test point and the negative terminal of the supply to the nearest GND test point. 3) Set the electronic load to sink 250mA. 4) Connect the positive terminal of the electronic load to the VSENSE- test point and the negative terminal of the supply to the nearest GND test point. Ordering Information appears at end of data sheet. 5) Connect the first voltmeter between test points RS1+ and RS1- to measure V . SENSE1 6) Connect the second voltmeter between VOUT1 and the nearest GND test points. 7) Turn on the power supplies. 8) Enable the electronic load. 9) Verify that the first voltmeter displays 12.5mV and the second voltmeter displays 2.5V. 10) Repeat the steps for the second current sense amplifier using the VSENSE2+ and VSENSE2- test points as the inputs and VOUT2 test point as the output. 319-100006 Rev 1 10/20Evaluates: MAX40201 MAX40201 Evaluation Kit Measuring the Load Current Detailed Description of Hardware The load current is measured as a voltage drop (V ) The MAX40201 EV kit provides a proven design to evaluate SENSE across an external sense resistor. This voltage is then the MAX40201 high-side, dual-channel, current-sense amplified by the current-sense amplifier and presented amplifier, which offers precision accuracy specifications of at its VOUT pin. Like all differential amplifiers, the output input offset voltage (V ) less than 10V (max) and gain OS voltage has two components of error (an offset error and error less than 0.1% (max). a gain error). The offset error affects accuracy at low Applying the V Supply and the Load RS+ currents and a gain error affects accuracy at large The EV kit is installed with a MAX40201WAWA+, which currents. Both errors affect accuracy at intermediate has a 200V/V gain. The current-sense resistors (R ) currents. By minimizing both offset and gain errors, SENSE value is 0.05 with 0.5% tolerance. The V for each accuracy can be optimized over a wide dynamic range. OUT channel given by: V = I x R x A OUT LOAD SENSE V where A is the gain and I is the current load applied V LOAD to the device. Normal operating V and V range is RS+ RS- 0V to 76V. Ordering Information PART TYPE MAX40201EVKIT EV Kit Denotes RoHS-compliant. Maxim Integrated 2 www.maximintegrated.com