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ADXL377 Datasheet(Arkusz danych) 10 Page - Analog Devices

Numer części ADXL377
Szczegółowy opis  3-Axis ±200 g Analog MEMS
Pobierz  13 Pages
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Producent  AD [Analog Devices]
Strona internetowa  http://www.analog.com
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ADXL377
Preliminary Technical Data
Rev. PrB | Page 10 of 13
LAYOUT AND DESIGN RECOMMENDATIONS
The recommended soldering profile is shown in Figure 5 followed by a description of the profile features in Table 6. The recommended
PCB layout or solder land drawing is shown in Figure 6.
Figure 5. Recommended Soldering Profile
Table 6. Recommended Soldering Profile
Profile Feature
Sn63/Pb37
Pb-Free
Average Ramp Rate (TL to TP)
3°C/sec maximum
3°C/sec maximum
Preheat
Minimum Temperature (TSMIN)
100°C
150°C
Maximum Temperature (TSMAX)
150°C
200°C
Time (TSMIN to TSMAX), tS
60 sec to 120 sec
60 sec to 180 sec
TSMAX to TL
Ramp-Up Rate
3°C/sec maximum
3°C/sec maximum
Time Maintained Above Liquidous (TL)
Liquidous Temperature (TL)
183°C
217°C
Time (tL)
60 sec to 150 sec
60 sec to 150 sec
Peak Temperature (TP)
240°C + 0°C/−5°C
260°C + 0°C/−5°C
Time within 5°C of Actual Peak Temperature (tP)
10 sec to 30 sec
20 sec to 40 sec
Ramp-Down Rate
6°C/sec maximum
6°C/sec maximum
Time 25°C to Peak Temperature (t25°C)
6 minutes maximum
8 minutes maximum
Figure 6. Recommended PCB Layout
tP
tL
t25°C
tS
PREHEAT
CRITICAL ZONE
TL TO TP
TIME
RAMP-DOWN
RAMP-UP
TSMIN
TSMAX
TP
TL
CENTER PAD IS NOT
INTERNALLY CONNECTED
BUT SHOULD BE SOLDERED
FOR MECHANICAL INTEGRITY
0.40
MAX
0.50
0.25
1.60
0.50
0.25
3
3
0.25
MAX
1.60
DIMENSIONS SHOWN IN MILLIMETERS




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