BQ2947_17 Datasheet, PDF (19/27 Pages) Texas Instruments – Overvoltage Protection for 2-Series to 4-Series Cell Li-Ion Batteries with External Delay Capacitor

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DSG0008B
bq2947
SLUSB15F – SEPTEMBER 2012 – REVISED JANUARY 2017
EXAMPLE BOARD LAYOUT
WSON - 0.8 mm max height
PLASTIC SMALL OUTLINE - NO LEAD
8X (0.5)
1
(0.9)
( 0.2) VIA
TYP
8
8X (0.25)
SYMM
(0.55)
9
(1.6)
6X (0.5)
5
4
(R0.05) TYP
SYMM
(1.9)
LAND PATTERN EXAMPLE
SCALE:20X
0.07 MAX
ALL AROUND
0.07 MIN
ALL AROUND
SOLDER MASK
OPENING
METAL
NON SOLDER MASK
DEFINED
(PREFERRED)
METAL UNDER
SOLDER MASK
SOLDER MASK
OPENING
SOLDER MASK
DEFINED
SOLDER MASK DETAILS
4222124/B 07/2016
NOTES: (continued)
4. This package is designed to be soldered to a thermal pad on the board. For more information, see Texas Instruments literature
number SLUA271 (www.ti.com/lit/slua271).
5. Vias are optional depending on application, refer to device data sheet. If any vias are implemented, refer to their locations shown
on this view. It is recommended that vias under paste be filled, plugged or tented.
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