Evaluates: MAX40010 MAX40010 Evaluation Kit General Description Quick Start The MAX40010 evaluation kit (EV kit) provides a proven Required Equipment design to evaluate the MAX40010 dual-channel, high- The following items are required for operation: precision, high-voltage, current-sense amplifier. This EV kit MAX40010 EV kit demonstrates the MAX40010 in a 5-PIN SOT-23 package. +3.3V, 1A DC power supply The EV kit PCB comes with a MAX40010TAWT+ installed, which is the 20V/V gain version. Other gain options are +5V, 3A DC power supply available. Contact the factory for the pin-compatible An electronic load capable of sinking 3A (i.e., HP6060B) MAX40010LAWT+ (G = 12.5V/V), MAX40010FAWT+ Two digital voltmeters (G = 50V/V), and MAX40010HAWT+ (G = 100V/V). Procedure EV Kit Contents The MAX40010 EV kit is fully assembled and tested. MAX40010 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 +2.7V 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 2.5A. Ordering Information appears at end of data sheet. 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. 5) Connect the first voltmeter between test points RS+ and RS- to measure V . SENSE 6) Connect the second voltmeter between VOUT and the nearest GND test points. 7) Turn on the power supplies. 8) Enable the electronic load. 9) Verify that the first voltmeter displays 125mV and the second voltmeter displays 2.5V. 19-8671 Rev 0 10/16MAX40010 Evaluation Kit Evaluates: MAX40010 Measuring the Load Current Detailed Description of Hardware The load current is measured as a voltage drop (V ) The MAX40010 EV kit provides a proven design to evaluate SENSE across an external sense resistor. This voltage is then the MAX40010 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 12V (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 currents Applying the V Supply and the Load RS+ and a gain error affects accuracy at large currentsboth The EV kit is installed with a MAX40010TAWT+, which errors effect accuracy at intermediate currents. By has a 20V/V gain. The current-sense resistors (R ) minimizing both offset and gain errors, accuracy can be SENSE value is 0.05 with 0.5% tolerance. The V for each 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- 2.7V to 76V. MAX40010 EV Kit Bill of Materials ITEM REF DES DNI/DNP QTY MFG PART MANUFACTURER VALUE DESCRIPTION COMMENTS C0603C104K4RAC CAPACITOR SMT (0603) CERAMIC CHIP GCM188R71C104KA37 KEMET/MURATA/TDK/ 1 C1 - 1 0.1UF 0.1UF 16V TOL=10% TG=-55 DEGC TO C1608X7R1C104K GRM188R71C104K VENKEL LTD. +125 DEGC TC=X7R C0603X7R160-104KNE CAPACITOR SMT (0805) CERAMIC CHIP 2 C2 - 1 GRM21BR71C475KA73 MURATA 4.7UF 4.7UF 16V TOL=10% MODEL=GRM SERIES TG=-55 DEGC TO +125 DEGC TC=X7R TEST POINT PIN DIA=0.125IN TOTAL LENGTH=0.445IN 3 GND, TP1-TP4 - 5 5011 KEYSTONE N/A BOARD HOLE=0.063IN BLACK PHOSPHOR BRONZE WIRE SILVER PLATE FINISH RESISTOR 1206 0.05 OHM 0.5% 4 R1 - 1 LVK12R050DE OHMITE MFG CO. 0.05 50PPM 0.5W METAL FILM TEST POINT PIN DIA=0.1IN TOTAL LENGTH=0.3IN 5 RS+, RS- - 2 5000 KEYSTONE N/A BOARD HOLE=0.04IN RED PHOSPHOR BRONZE WIRE SILVER PLATE FINISH EVKIT PART-IC MAX40010TAUT+ 6 U1 - 1 MAX40010TAUT+ MAXIM MAX40010TAUT+ PACKAGE OUTLINE: 21-0058 PACKAGE CODE: U6SN-1 SOT6 VDD, VOUT, TESTPOINT WITH 1.80MM HOLE DIA, 7 - 4 5010 KEYSTONE N/A VSENSE+, RED, MULTIPURPOSE VSENSE- CAPACITOR SMT (1206) CERAMIC CHIP 8 C3, C4, C7 DNP 0 C1206C102K1RAC KEMET 1000PF 1000PF 100V TOL=10% TG=-55 DEGC TO +125 DEGC TC=X7R CAPACITOR SMT (0603) CERAMIC CHIP 9 C9 DNP 0 C0603C181K5GAC KEMET 180PF 180PF 50V TOL=10% MODEL=C0G TG=-55 DEGC TO +125 DEGC TC=+/ CRCW06030000ZS MCR03EZPJ000 VISHAY DALE/ROHM RESISTOR 0603 0 OHM 0% 10 R3, R4, R7 DNP 0 0 ERJ-3GEY0R00 /PANASONIC JUMPER 0.10W THICK FILM 11 PCB - 1 MAX40010 MAXIM PCB PCB Board:MAX40010 EVALUATION KIT Maxim Integrated 2 www.maximintegrated.com