ZXCT1041 EV1
Zdb341R2. 26-Feb-07
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ZXCT1041 EV1 User Guide Rev2
ZXCT1041EV1 EVALUATION BOARD USER GUIDE
DESCRIPTION
The ZXCT1041EV1 is intended for the evaluation of the
ZXCT1041 device. The ZXCT1041 is a high side bi-
directional current monitor providing a fixed voltage gain
of 10.
The device produces a voltage output proportional to the
current sampled by a small inline sensing resistor, R
sense
.
The voltage output is scaled by the choice of R
sense
. As
delivered the board is set up to provide an out put of 1.5V
from a current of 1.5A using a 100 m
Ω
sampling resistor.
There is a second 25 m
Ω
resistor that can be selected
by means of a solder link and provides an output of
1.5V for a load current of 6A.
Additionally provision is made for a wire ended
sampling resistor of the users choice. An open
collector flag output indicates the direction of current
flow.
The printed circuit board is common to other devices in
the ZXCT family, for the ZXCT1041, the Vcc pin is not
used.
FEATURES
•
Supply Range 4.2 to 20V for 1.5V output.
•
Selectable current measurement range
•
5 Pin SOT23-5 package
APPLICATIONS
•
Battery Charging
•
Power Supplies
•
Over Current Monitoring
