MAX14827 Datasheet, PDF (1/41 Pages) Maxim Integrated Products – Integrated LED Driver

MAX14827
EVALUATION KIT AVAILABLE
IO-Link Device Transceiver
General Description
The MAX14827 integrates the high-voltage functions
commonly found in industrial sensors, including drivers
and regulators. The MAX14827 features two ultra low-
power drivers with active reverse-polarity protection.
Operation is specified for normal 24V supply voltages
up to 60V. Transient protection is simplified due to high
voltage tolerance allowing the use of micro TVS.
The device features a flexible control interface. Pin-
control logic inputs allow for operation with switching
sensors that do not use a microcontroller. For sensors that
use a microcontroller, an SPI interface is available with
extensive diagnostics. For IO-Link operation, a three-wire
UART interface is provided, allowing interfacing to the
microcontroller UART. Finally, a multiplexed UART/SPI
option allows using one serial microcontroller interface for
shared SPI and UART interfaces.
The device includes on-board 3.3V and 5V linear
regulators for low-noise analog/logic supply rails.
The MAX14827 is available in a (4mm x 4mm) 24-pin
TQFN package and a (2.5mm x 2.5mm) 25-pin wafer-
level package (WLP) and is specified over the extended
-40°C to +125°C temperature range.
Applications
●● Industrial sensors
●● IO-Link sensors and actuators
●● Safety applications
Benefits and Features
●● High Configurability and Integration Reduce SKUs
• IO-Link Compliant Transceiver
• Auxiliary 24V Digital Output and Input
• 2.3Ω (typ) Driver On-Resistance
• Selectable Driver Current: 50mA to 250mA
• SPI or Pin-Control Interface for Configuration and
Monitoring
• Multiplexed SPI/UART Interface Option
• 5V and 3.3V Linear Regulators
• Optional External Transistor Supports Higher
Regulator Load Capability
• Integrated LED Driver
●● Integrated Protection Enables Robust
Communication
• 65V Absolute Maximum Ratings on Interface and
Supply Pins Allows for Flexible TVS Protection
• 9V to 60V Specified Operation
• Glitch Filters for Improved Burst Resilience and
Noise
• Selectable Over-Current Auto-Retry Timing
• Thermal Shutdown Auto-Retry Cycling
• Hot-Plug Supply Protection up to 36V
• Reverse Polarity Protection of All Sensor Interface
Inputs/Outputs
• -40°C to +125°C Operating Temperature Range
Ordering Information appears at end of data sheet.
Typical Operating Circuit
5V
3.3V
1µF
1µF
10kΩ
VCC
VL
V33
V5
REG
V24
SPI/PIN
GPIO
IRQ/OC
GPO
LED1IN
SPI
MICROCONTROLLER
MAX14827
IRQ
WU
DO
RX
RX
DI
TX
TX
GND
RTS
TXEN
GND
UARTSEL _LED1
C/Q
0.1µF
L+
DI/DO
1
2
4
3
C/Q
L-
IO-Link is a registered trademark of Profibus User Organization (PNO).
SPI is a trademark of Motorola, Inc.
19-8441; Rev 0; 12/15