Power Sources - Microchip Technology SAM B11ZR Xplained Pro User Manual

Table 3-3. Xplained Pro ID Chip Content
Data Field
Manufacturer
Product name
Product revision
Product serial number
Minimum voltage [mV]
Maximum voltage [mV]
Maximum current [mA]
3.5

Power Sources

The SAM B11ZR Xplained Pro kit can be powered by several power sources as listed in the table below.
Table 3-4. Power Sources for SAM B11ZR Xplained Pro
Power input
External power
Embedded debugger
USB
Battery header is another power input, refer to
The kit will automatically detect which power sources are available and choose which one to use
according to the following priority:
1. External power.
2. Embedded Debugger USB.
Note: The selection for the supply of the Target MCU has a separate connector. The above priority
selects which supply is used to power the EDBG and the VCC_P3V3_CON.
Info: External power is required when 500mA from a USB connector is not enough to power
the board with possible extension boards. A connected USB device in a USB host application
might easily exceed this limit.
©
2017 Microchip Technology Inc.
Data Type
ASCII string
ASCII string
ASCII string
ASCII string
uint16_t
uint16_t
uint16_t
Voltage requirements
5V ±2% (±100 mV) for
USB host operation.
4.3V to 5.5V if USB host
operation is not
required.
4.4V to 5.25V (according
to USB spec.)
Battery
User Guide
Example Content
Microchip'\0'
Segment LCD1 Xplained Pro'\0'
02'\0'
1774020200000010'\0'
3000
3600
30
Current requirements
Recommended
minimum is 1A to be
able to provide enough
current for connected
USB devices and the
board itself.
Recommended
maximum is 2A due to
the input protection
maximum current
specification.
500 mA (according to
USB spec.)
Header.
ATSAMB11ZR
Connector marking
PWR
DEBUG USB
DS70005334A-page 9