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TEST BOARD PIN DESCRIPTION
Name
Fix the wire of Primary Current by screw Non-Inverting Current Sense Input
I_IN
Fix the wire of Primary Current by screw Inverting Current Sense Input
I_OUT
VOC
P1 Connector Pin 1
VCC
P1 Connector Pin 2
P1 Connector Pin 3
VOUT
VREF
P1 Connector Pin 4
GND
P1 Connector Pin 5
TEST1
P1 Connector Pin 6
TEST2
P1 Connector Pin 7
FAULTB
P1 Connector Pin 8
OPERATING INSTRUCTIONS
•
Connect power supply to positive terminal and negative terminal to VCC and GND of P1, respectively
•
Connect multimeter, oscilloscope, or other signal measurement devices to VOUT, VREF and GND through either
P1 connector, test points, or BNC connectors
•
Connect current to be measured to the I_IN and I_OUT Primary Wires. For correct positive/negative current
readings, positive current should flow from I_IN to I_OUT.
•
To read sensor output, VOUT, VREF, and VCC voltages must be measured and converted to a current per the
electrical characteristics table.
Note:
•
This EVB is designed to work up to 50A peak (35A RMS) for thermal reasons. In order to evaluate the
performance with 35A to 50A DC, use pulsed current with appropriate duty cycle that guarantees no more than
35A RMS.
•
High current will cause sensor IC and PCB to be very hot. The junction temperature can exceed 100℃.
touch the chip and
SCHEMATIC
MCx1101 Evaluation Note, Document No.: 7430-9001-01 Ver1.6
Connection
PCB. The temperature rise can be reduced by using thicker cable and bigger screws.
Description
Input pin. Voltage on this pin defines the OCP
threshold level.
Sensor power supply.
Analog Output Signal linearly proportional to
Primary Path Current
Zero Current Analog Reference Output
Ground.
For factory calibration only. Do not connect.
For factory calibration only. Do not connect.
Output pin, active low when the primary current
exceeds the setting threshold
Do not
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