Datasheet

UG-336 Evaluation Board User Guide
Rev. 0 | Page 6 of 8
SHUTDOWN CURRENT MEASUREMENTS
Figure 8 shows how the evaluation board can be connected to
a voltage source and a current meter (ammeter) for shutdown
current measurements. The current meter can also be connected
to the VIN pad to measure the ground current, which is equal
to the shutdown current when EN is tied to ground. Figure 7
shows the typical shutdown current consumption for various
input voltages.
Follow these steps to connect the evaluation board to a voltage
source and current meter:
1. Connect the positive terminal (+) of the voltage source to
the positive terminal (+) of the current meter.
2. Connect the negative terminal (−) of the voltage source to
the GND pad and the EN pad on the evaluation board.
3. Connect the negative terminal (−) of the current meter to
the VIN pad on the evaluation board.
The voltage source can now be turned on.
–40 –20 0 20 40 60 80 100
TEMPERATURE (°C)
I
GND
SHUTDOWN CURRENT
(
µA)
0.01
0.1
1
0.90V
0.95V
1.00V
1.20V
1.50V
1.80V
2.20V
2.60V
3.20V
3.60V
10294-007
Figure 7. Shutdown Current vs. Temperature and Input Voltage (V
IN
)
10294-008
+
–
VOLTAGE
SOURCE
+
–
AMMETER
0.00112
Figure 8. Shutdown Current Measurement