1
dc2228af
DEMO MANUAL DC2228A
Description
LTC2874
8-Port IO-Link Master
Reference Design
Demonstration circuit 2228A is a complete 8-port IO-Link
®
Master that uses two
IC’s to implement its
IO-Link v1.1 physical interface (PHY). DC2228A operates
either with an external supply V
DD
or a Power over Ethernet
(PoE) system. The IO-Link stack protocol runs on an
NXP microcontroller. A software Control Tool operates
the DC2228A.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and Hot
Swap and LTPoE++ are trademarks of Linear Technology Corporation. IO-Link is a registered
trademark of PROFIBUS Nutzerorganisation (PNO) e.V. All other trademarks are the property of
their respective owners. Compatible with IO-Link Consortium as set forth by PROFIBUS PNO.
performance summary
BoarD photo
Design files for this circuit board are available at
http://www.linear.com/demo/DC2228A
Specifications are at T
A
= 25°C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
DD
Input Supply Range
J5; S1 in EXT Position
20
30
V
----
PoE Supply Range
J1; S1 in PoE Position; LTPoE++ 90W
41
57
V
VS
M
Supply Voltage for Devices
20
30
V
IS
M
Supply Current for Devices
200
mA
ISIR
M
Current Pulse Capability for Devices
V(L+) > 18V
500
mA
