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| BQ24640 Datasheet, PDF (21/25 Pages) Texas Instruments – High-Efficiency Synchronous Switch-Mode Super Capacitor Charger | |||
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www.ti.com
VIN
bq24640
SLUSA44 â MARCH 2010
L1
R1
SW
V OUT
High
Frequency
Current
C1
Path
PGND
C2
C3
Super
Capacitor
Figure 14. High Frequency Current Path
To Inductor
Charge Current Direction
R SNS
To Capacitor and Output
Current Sensing Direction
To SRP and SRN pin
Figure 15. Sensing Resistor PCB Layout
Refer to the EVM design (SLUU410) for the recommended component placement with trace and via locations.
For the QFN information, refer to SCBA017 and SLUA271A.
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): bq24640
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