BQ24157 Datasheet, PDF (33/39 Pages) Texas Instruments – Fully Integrated Switch-Mode Charger With USB Compliance and USB-OTG Support

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VIN
VBUS
PMID
C1
C2
High
Frequency
Current
Path
bq24157
SLUSB80 – SEPTEMBER 2012
L1
R1
SW
V _BAT
PGND
BAT
C3
Figure 35. High Frequency Current Path
Charge Current Direction
R _SNS
To Inductor
To Capacitor and battery
Current Sensing Direction
To CSIN and CSOUT pin
Figure 36. Sensing Resistor PCB Layout
Vin+
Vin–
1µF
4.7µF
VBUS
PMID
SW
PGND
Figure 37. Input Capacitor Position and PCB Layout Example
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