BQ294602_17 Datasheet, PDF (12/21 Pages) Texas Instruments – Single-Cell Protector for Li-Ion Batteries

bq294602, bq294604, bq294682, bq294624
SLUSAS0D – DECEMBER 2011 – REVISED APRIL 2017
10 Power Supply Recommendations
The maximum power of this device is 8 V on VDD.
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11 Layout
11.1 Layout Guidelines
1. Ensure the RC filters for the V1 and VDD pins are placed as close as possible to the target terminal,
reducing the tracing loop area.
2. The VSS pin should be routed to the CELL– terminal.
3. Ensure the trace connecting the fuse to the gate, source of the NFET to the Pack is sufficient to withstand
the current during a fuse blown event.
11.2 Layout Example
Place the RC filters close to the
device terminals
Power Trace Line
VCELL
NC
V2
VSS
PWPD
OUT
VDD
VSS
Pack +
Pack ±
Ensure trace can support sufficient current
flow for fuse blow
Connect the VSS pins to the CELL- side
Figure 12. Layout Schematic
12
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