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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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VL53L1 датащи(PDF) 31 Page - STMicroelectronics |
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VL53L1 датащи(HTML) 31 Page - STMicroelectronics |
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31 / 35 page  DocID031281 Rev 3 31/35 VL53L1X Packaging and labeling 35 8.5 Pb-free solder reflow process Table 18 and Figure 24 show the recommended and maximum values for the solder profile. Customers have to tune the reflow profile depending on the PCB, solder paste, and material used. We expect customers to follow the recommended reflow profile, which is specifically tuned for VL53L1X package. For any reason, if a customer must perform a reflow profile which is different from the recommended one (especially peak >240 °C), this new profile must be qualified by the customer at their own risk. In any case, the profile has to be within the “maximum” profile limit described in Table 18. Figure 24. Solder profile Note: Temperature mentioned in Table 18 is measured at the top of the VL53L1X package. Note: The component should be limited to a maximum of three passes through this solder profile. Table 18. Recommended solder profile Parameters Recommended Maximum Units Minimum temperature (TS min) Maximum temperature (TS max) Time ts (TS min to TS max) 130 200 90-110 150 200 60 - 120 °C °C s Temperature (TL) Time (tL) Ramp up 217 55-65 2 217 55 - 65 3 °C s °C/s Temperature (Tp-10) Time (tp) Ramp up - - - 235 10 3 °C s °C/s Peak temperature (Tp) 240 245 °C Time to peak 300 300 s Ramp down (peak to TL)-4 -6 °C/s |
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