DC2033A Analog Devices

DEMO MANUAL DC2033A LT6110 Cable/Wire Drop Compensator Description The DC2033A demo board features the LT 6110 cable/ The DC2033A is jumper-configurable for the LT6110 to wire drop compensator IC. The LT6110 is a precision use the internal sense resistor, an external 25m sense high side current sense that monitors load current via a resistor, or a 5.4m PCB trace sense resistor. The DC2033A sense resistor and converts the sense voltage to a sink- default configuration is for the LT6110 to use the internal ing or sourcing current. Using the LT6110 sourcing or sense resistor. sinking current to control a regulators output voltage can Design files for this circuit board are available at compensate for the voltage loss due to a cable/wire drop. DEMO MANUAL DC2033A p s Specifications are at T = 25C A PARAMETER MIN TYP MAX UNITS + Supply Range (V to V ) 2 50 V Amplifier Input Offset Voltage, V 100 300 V OS IOUT Current Error (Does Not Include V or R Errors) I = 10A 0.6 1.6 % OS IN +IN I = 100A 0.4 1 % +IN I = 1mA 1.5 2.5 % +IN IMON Current Error (3 I ) I = 100A 1.5 3 % +IN +IN + IOUT Voltage Range 0.4 V V IOUT Current Error Change for IOUT Voltage 0.4V to 3.5V 0.2 %/V IMON Current Error Change for IMON Voltage 0V to 3.1V 0.2 %/V IOUT Signal Bandwidth I = 100A 180 kHz +IN Supply Current 16 30 A Quick s s The Quick Start Setup of Figure 3, shows the basic con- The R resistor and the V voltage set the LT6110 IN1 SENSE nections required for getting familiar with a DC2033A. output current (I ). To begin, adjust the power supply IOUT An ammeter is used to measure the load current to a 5 for 1A load current. With 1A load current flowing through load or an active load. To confirm the operation of the the internal 20m R resistor and 100V V , the SENSE OS LT6110, connect a wire jumper from VOUT1 to regulator. I current is 50A, (1A 20m + 100V)/402. The IOUT This jumper connects the power supply 5V to the ROUT voltmeter should read 5mV (50A 100) the R , SENSE 100 pull-up resistor. The voltmeter across ROUT is for V , R , R and I errors. Figure 4 shows the Quick OS IN1 OUT IOUT monitoring the I current. A DC2033A is assembled with Setup schematic and I equations. IOUT IOUT a 402 R resistor to provide quick testing convenience. IN1 Figure 3. Quick Start Setup dc2033af 2 etup tart ummary erformance