MAX14826 Datasheet, PDF (1/32 Pages) Maxim Integrated Products – IO-Link Device Transceiver

MAX14826
IO-Link Device Transceiver
General Description
The MAX14826 transceiver is suitable for IO-Link^®
devices and 24V binary sensors. All specified IO-Link
data rates are supported. In IO-Link applications, the
transceiver acts as the physical layer interface to a micro-
controller running the data-link layer protocol. Additional
24V digital inputs and outputs are provided. Two internal
linear regulators generate common sensor and actuator
power requirements: 5V and 3.3V.
On-board C/Q and DO drivers are independently-config-
urable for push-pull, high-side (PNP), or low-side (NPN)
operation. The device detects the IO-Link C/Q wake-up
condition and generates a wake-up signal on the active-
low WU/THSD output.
The MAX14826 includes a selectable parallel or SPI
interface for configuration and monitoring of the drivers.
Extensive alarm conditions are detected and communi-
cated through the interrupt outputs and the SPI interface.
The device features reverse-polarity, short-circuit, and
thermal protection. All power lines are monitored for
undervoltage conditions.
The C/Q and DO drivers are specified for sinking/sourcing
200mA.
The MAX14826 is available in a 4mm x 4mm, 24-pin
TQFN package, and is specified over the extended -40°C
to +105°C temperature range.
Applications
●● IO-Link Sensors
●● IO-Link Actuators
●● Industrial Sensors and
Actuators
Typical Application Circuit
Benefits and Features
●● IO-Link Specification v.1.0 and v.1.1 Physical Layer
Compliant
●● High Configurability and Integration Reduce SKU’s
• Push-Pull, High-Side, or Low-Side Outputs
• Supports COM1, COM2, and COM3 Data Rates
• SPI or Pin-Driven Control and Monitoring
• 2.5V to 5V Logic Interface Levels
• C/Q and DO Drivers Can Be Connected in Parallel
• Auxiliary 24V, 200mA Digital Output (DO)
• Auxiliary 24V Digital Input (DI)
• Integrated 5V and 3.3V Linear Regulators
• Driver Currents Specified for 200mA, 100mA
and 50mA
• 1μF C/Q and DO Load Drive Capability
●● Integrated Protection Enables Robust Solutions
• Extensive Fault-Monitoring and Reporting
• Reverse-Polarity and Short-Circuit Protection on All
24V Inputs/Outputs
• Reverse-Polarity Protected 24V Supply Output
• -40°C to +105°C Operating Temperature Range
●● Backwards Pin-and Software-Compatible to
MAX14821
●● Space-Saving 4mm x 4mm TQFN Package
Ordering Information appears at end of data sheet.
5V
3.3V
10kΩ
VCC
GPIO2
SPI
MICROCONTROLLER _IRQ
RX
TX
RTS
GND
GPIO1
VL
SPI/PAR
UV
WU/THSD
RX
TX
TXEN
LO
1µF
0.1µF
1µF
10Ω
LDO33
V5
LDOIN
VP
VCC
MAX14826
DO
C/Q
GND
DODIS DI
0.8Ω
1µF
L+
1
2
4
3
L-
IO-Link is a registered trademark of Profibus User Organization (PNO).
19-7129; Rev 0; 9/14