71M6531D Datasheet, PDF (107/115 Pages) Teridian Semiconductor Corporation – Energy Meter IC

FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
5.7.3 Recommended PCB Land Pattern for the QFN-68 Package
Figure 48: PCB Land Pattern for QFN 68 Package
Table 83: Recommended PCB Land Pattern Dimensions
Symbol
e
x
y
d
A
G
Description
Lead pitch
Pad width
Pad length, see note 3
See note 1
Typical Dimension
0.4mm
0.23mm
0.8mm
6.3mm
6.63mm
7.2mm
Notes:
1. Do not place unmasked vias in the region denoted by dimension d.
2. Soldering of bottom internal pad is not required for proper operation.
3. The y dimension has been elongated to allow for hand soldering and reworking. Production assem-
bly may allow this dimension to be reduced as long as the G dimension is maintained.
v1.2
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