MAX14824 Datasheet, PDF (1/28 Pages) Maxim Integrated Products – IO-Link Master Transceiver

19-5788; Rev 3; 5/12
EVALUATION KIT AVAILABLE
MAX14824
IO-Link Master Transceiver
General Description
The MAX14824 is an IO-Link^M master interface that inte-
grates an IO-Link physical layer transceiver with an
auxiliary digital input and two linear regulators. High port
count IO-Link master applications are supported through
in-band SPI addressing, and the 12MHz SPI interface
minimizes host controller access times. In-band address-
ing and selectable SPI addresses enable cascading up
to 16 devices.
The device supports all the IO-Link data rates and fea-
tures slew-rate-controlled drivers to reduce EMI. The
driver is guaranteed to drive up to 300mA (min) load
currents. Internal wake-up circuitry automatically deter-
mines the correct wake-up polarity, allowing for the use
of simple UARTs for wake-up pulse generation.
The MAX14824 is available in a 4mm x 4mm, 24-pin
TQFN package with exposed pad, and operates over the
extended -40NC to +105NC temperature range.
Applications
IO-Link Master Controllers
PLC Fieldbus Gateways
High Port Count IO-Link Masters
24V Digital Inputs and Outputs
Ordering Information appears at end of data sheet.
Features
S IO-Link v.1.0 and v.1.1 Physical Layer Compliant
S Supports COM1, COM2, and COM3 Data Rates
S Push-Pull, High-Side, or Low-Side Outputs
S 300mA C/Q Output Drive
S 1µF C/Q Load Drive Capability
S Generates 500mA Wake-Up Pulse
S Automatic Wake-Up Pulse Polarity
S Auxiliary Digital Input
S 5V and 3.3V Linear Regulators
S SPI Interface for Configuration and Monitoring
S SPI-Based Chip Addressing
S EMI Emission Control Through Slew-Controlled
Driver
S Reverse-Polarity Protection on DI
S Short-Circuit Protection on C/Q
S High Temperature Warning and Thermal Shutdown
S Extensive Fault Monitoring and Reporting
S -40NC to +105NC Operating Temperature Range
S 4mm x 4mm TQFN Package
Typical Operating Circuits
24V
1μF
1μF
0.1μF
VCC
SPI
VL TXQ LDO33
V5
LDOIN VCC
C/Q
GPO
IO-LINK
WUEN
CONTROLLER
RX
RX
MAX14824
DI
TX
TXC
RTS
GND
TXEN
A0 A1 A2 A3 GND
270pF
C/Q
270pF
Typical Operating Circuits continued at end of data sheet.
IO-Link is a registered trademark of Profibus User Organization (PNO).
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX14824.related
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.