BQ24262_15 Datasheet, PDF (44/56 Pages) Texas Instruments – bq2426x 3-A, 30-V, Host-Controlled Single-Input, Single-Cell Switched-Mode Li-Ion Battery Charger With Power-Path Management and USB-OTG Support

Not Recommended for New Designs : bq24260, bq24261
bq24260, bq24261, bq24261M, bq24262
SLUSBU4D – DECEMBER 2013 – REVISED APRIL 2015
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12.2 Layout Example
It is important to pay special attention to the PCB layout. Figure 43 provides a sample layout for the high current
paths of the bq2426xYFF. Figure 44 provides a sample layout for the high current paths of the bq2426xRGE.
PMID
PMID and IN
Cap Gnds
close together
PGND
IN cap close
to IN pin
SW
BOOT
Thermal vias
connect to
PGND
SYS cap
close to
SYS pins
BAT cap close
to BAT pins
Figure 43. Recommended bq2426x PCB Layout for WCSP Package
sp
SW
PGND
PMID
BOOT
PMID and IN
Cap Gnds
Close together
SYS Cap
Close to
SYS Pins
IN Cap
Close to
IN Pin
BAT Cap
Close to
BAT Pins
Thermal
Vias connect
To GND
Figure 44. Recommended bq2426x PCB Layout for QFN Package
44
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