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20. Schematics, Documentation, and Support
Please see the product information tabs at
and documentation.
21. Temperature Range
UEZGUI-4357-50WVN-BA board w/o LCD: -30°C to +80°C
UEZGUI-4357-50WVN-BA with LCD: -20°C to +70°C
22. ESD Warning
The UEZGUI-4357-50WVN-BA kit is shipped in a protective anti-static package. The kit must
not be subjected to high electrostatic potential. Damage may occur to the boards that will
not be covered under warranty. General practice for working with static sensitive devices
should be followed when working with the kit.
23. Real Time Clock Backup Time
The µEZ GUI's Real Time Clock is backed up with a Seiko Super Capacitor to allow the time to be preserved when
external power is removed. The calculated backup time is shown below.
Super Capacitor
XH414HG
For a longer RTC backup time an off-board RTC located on an expansion board would be preferred.
24. Power Requirements
Power is supplied into the mini-USB connector (P2) via the USB cable and power supply provided in the kit. The power
supply provides 5VDC output at 2A (min) and has input voltage range of 100-240VAC with standard U.S. 2-prong plug.
The following typical power requirements were measured at room temperature with LPC4357 M0 and M4 cores both
running, with a SanDisk Industrial microSD card installed:
Voltage
µEZ Demo Screen
5.0V
µEZ GUI Input Power Requirements:
•
+5VDC ±5% is the input power range specification. However, since the 5VDC input has reverse diode protection, it
may be necessary to provide a higher input voltage level of 5VDC input to ensure that the µEZ GUI 5VDC output level
retains the specified tolerance. If the µEZ GUI input level drops to 4.75VDC, then the µEZ GUI +5VDC output level to
either the Expansion Board or the USB Host connector may be lower than 4.75VDC since the worst case drop from
input to output is typically 0.25V.
3/27/2024
µ E Z G U I U s e r ' s M a n u a l
https://www.teamfdi.com/product-details/uezgui-4357-50WVN
Typical Voltage
Stop Voltage
3.17 V
515 mA
Copyright ©2024, Future Designs, Inc.
Maximum Current
2.4 V
10µA
Observed Max
~0.825 A
P a g e
| 29
for support
Typical Backup Time
~3.5 hrs.
Maximum Allowed
Up to 1.5A through P2
Revision 1.4
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