CP2102N Datasheet, PDF (5/44 Pages) Silicon Laboratories – USBXpress Family

CP2102N Data Sheet
Typical Connection Diagrams
2.2 Battery Charger Detect
The CP2102N Battery Charger Detect notifies an external battery charger the amount of current available from the USB interface.
The figure below shows an example connection diagram for external battery charging circuitry. If using an external battery charging IC,
consult the data sheet for more information about the specific recommended connection diagrams.
CEN
SETI
External
Battery
Charging IC
CP2102N Device
CHREN (100 mA)
CHR0 (500 mA)
CHR1 (1.5 A)
USB
Connector
VBUS
D+
D-
Signal GND
VREGIN
VBUS
D+
D-
SP0503BAHT or
equivalent USB ESD
protection diodes
(Recommended)
GND
Figure 2.4. Battery Charging Connection Diagram
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