Product Info

Smart Module Series
SC600Y&SC600T Hardware Design
SC600Y&SC600T_Hardware_Design 47 / 134
USB_VBUS can be powered by a USB power or an adapter. It is used for USB connection detection and
power supply input for battery charging. Its input voltage ranges from 4.0V to 10.0V, and the typical value
is 5.0V. SC600Y/SC600T supports charging management for a single cell Li-ion battery, but varied
charging parameters should be set for batteries with varied models or capacities. The maximum charging
current is up to 3.0A.
SC600Y/SC600T supports USB On-The-Go (OTG) function. USB_ID pin is used to detect whether the
OTG device is attached. If USB_ID is kept open (high level by default), the module will be in USB device
mode; if USB_ID is connected to ground, the module will be in host mode and the USB_VBUS is used to
supply power for peripherals with maximum output of 5V/1A.
The use of Type-C and Micro USB is up to the design of USB_OPT. If Micro USB is intended to be used,
USB_OPT should be connected to ground via a 1KΩ resistor, and if Type-C is intended to be used,
USB_OPT should be left open.
The following is a reference design for Micro USB interface:
Figure 12: Micro USB Interface Reference Design