Texas Instruments BOOSTXL-TMP107, User Manual, Page: 5 / 18

BoosterPack
&
TMP107 #1
TMP107 #2 TMP107 #3
BoosterPack
&
TMP107 #1
TMP107 #2 TMP107 #3 Discard
Original Operation Remote Operation
0.1µF
C1
GND
C2
UCA0RXD
UCA0TXD
3.3k
R1
1 2
3 4
5 6
J3
10k
R2
V+
1
I/O1
3
I/O2
7
U2
TMP107BIDR
N
C
1
2
3
4
5
U1
SN74LVC1G07DBVR
GND
+3.3V
+3.3V
TX Options:
Open-Drain Driver
Pull-Up Resistor/Current Limiter
Direct Connect
IO1_2
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5 SBOU174 – June 2017
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BOOSTXL-TMP107 User's Guide
Figure 4. J3 Header
2.1.4 Breakable PCB
The BOOSTXL-TMP107 PCB features perforations that allow sections to be separated. The second and
third TMP107 devices (U3 and U4) may be removed for remote temperature sensing. These modules only
require three-conductor cabling between them and the main BoosterPack module. The TMP107 features a
push-pull output capable of sourcing or sinking up to 1 mA. This push-pull output allows it to drive more
than 6 feet of ribbon cable between sensor nodes.
Figure 5. Breakable PCB