Texas Instruments TPL5010, Руководство пользователя, Страница: 13 / 22

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nA
DMM
S_ON_OFF
I_SEL
J1
J2
R_SEL
CR2032
VDD
RST GPIO GPIO GND
µC
IO
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Operation
3.1.3 Supply Current Measurement of the TPL5010 With Microcontroller
First, turn off the EVM (ON/OFF switch to OFF position):
• Load the code into the microcontroller.
• Connect the microcontroller to the EVM, refer to Section 2.3.3 .
• Install the I_SEL jumper.
• Do not leave digital input pins floating ; Ensure that the DONE signal is controlled by the
microprocessor, 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 V_BATT
test point and AUX_VDD test point.
• Leave the EVM OFF (ON/OFF switch to OFF position).
• Read the current consumption on the DMM while pressing the MANUAL_RESET switch.
Figure 12. Current Measurement Setup – TPL5010 With Microcontroller
13 SNAU173 – January 2015 TPL5010 Evaluation Module
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