SNVSAU8A June 2017 – February 2024 TPS549B22
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
Proper mounting technique adequately covers the exposed thermal tab with solder. Excessive heat during the reflow process can affect electrical performance. Figure 8-16 shows the recommended reflow oven thermal profile. Proper post-assembly cleaning is also critical to device performance. See
QFN/SON PCB Attachment for more information.
PARAMETER | MIN | TYP | MAX | UNIT | |
---|---|---|---|---|---|
RAMP UP AND RAMP DOWN | |||||
rRAMP(up) | Average ramp-up rate, TS(max) to TP | 3 | °C/s | ||
rRAMP(down) | Average ramp-down rate, TP to TS(max) | 6 | °C/s | ||
PRE-HEAT | |||||
TS | Pre-heat temperature | 150 | 200 | °C | |
tS | Pre-heat time, TS(min) to TS(max) | 60 | 180 | s | |
REFLOW | |||||
TL | Liquids temperature | 217 | °C | ||
TP | Peak temperature | 260 | °C | ||
tL | Time maintained above liquidus temperature, TL | 60 | 150 | s | |
tP | Time maintained within 5°C of peak temperature, TP | 20 | 40 | s | |
t25P | Total time from 25°C to peak temperature, TP | 480 | s |