Texas Instruments AN-1975 LMP8640, Руководство пользователя, Страница: 4 / 8

Bill Of Materials (BOM)
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The V
REF
level represents the zero level; the voltages greater than V
REF
are related to a current that flows
from IN pin to the LOAD pin while the voltages less than V
REF
are related to a current that flows from the
LOAD pin to the IN pin. To ensure good results in the measurements, the resistors R4 and R3 and the
resistors R1 and R2 need to be well matched.
5 Bill Of Materials (BOM)
Table 5. Bill Of Materials
(1)
,
(2)
Designator Component Value Tolerance Package Type
C1, C3 Capacitor 0.01 μ F 5% 0603
C2, C6* Capacitor 1 μ F 10% 3216–18
C4 Capacitor 0.1 μ F 10% 0805
C5*, C7 Capacitor 0.1 μ F 10% 0603
C_Filt1*, C_Filt2* Capacitor 0805
CG1*, CG2* Capacitor 0805
R1*, R2*, R3*, R4*, R5*, R6* Resistor min 10 k Ω 1% 0603
RG1**, RG2** Resistor 10.0 k Ω 1% 0603
Rsns** Resistor 0.01 Ω 1%, 1W 2010
Rsns Resistor 0.01
Ω
0.1%, 1W 2512
R_Filt_1, R_Filt2 Resistor 5% 0805
U3* Dual Op Amp SOT-8
(1)
Components Marked With (*) are not soldered on the board.
(2)
Components marked with (**) are soldered only on LMP8645 board.
4 AN-1975 LMP8640/LMP8645 Evaluation Board SNOA546C – November 2009 – Revised April 2013
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