Texas Instruments TPL5010, Руководство пользователя, Страница: 12 / 22

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nA
DMM
S_ON_OFF
I_SEL
J1
J2
R_SEL
IO
CR2032
MANUAL RESET
Operation
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3.1.2 Supply Current Measurement of the TPL5010 During the Reading of the Resistance
First, turn off the EVM (ON/OFF switch to OFF position), then disconnect the EVM from the LaunchPad or
your microcontroller, in order to not load the digital output pins of the DUT.
• Leave the I_SEL jumper open.
• Do not leave digital input pins floating ; Short the DONE pin (second pin of IO header) to GND (first
pin of IO header), turn OFF the Q1 and Q2 MOSFET (as explained in Table 3 ).
• Connect a digital multimeter, configured as the current meter (able to measure nA), between
AUX_VDD and pin 1 of I_SEL.
• Keep the MANUAL_RST switch pressed while turning ON the EVM.
• Turn on the EVM (ON/OFF switch to ON position).
• Read the current consumption on the DMM.
Figure 11. Current Measurement Setup – TPL5010 During the Reading of the Resistance
12 TPL5010 Evaluation Module SNAU173 – January 2015
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