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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX14906 Datasheet

Digital I/O

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MAX14906
EVALUATION KIT AVAILABLE
Quad-Channel Industrial
Digital Output/Digital Input
General Description
The MAX14906 is an IEC 61131-2 compliant, high-speed,
four-channel industrial digital output, digital input device
that can be configured on a per-channel basis as a high-
side (HS) switch, push-pull (PP) driver, or a Type 1 and 3,
or Type 2 digital input. The MAX14906 is specified for op-
eration with a supply voltage up to 40V and is tolerant to
65V.
The high-side switch current limiting is settable from
130mA to 1.2A with the option of 2x load inrush current.
The high-side driver on-resistance is 120mΩ (typ) at 25°C
ambient temperature. Optional push-pull operation allows
high speed driving of cables and fast discharge of load
capacitance. For digital input operation, current sinks for
2.3mA (Type 1 and 3) or 7mA (Type 2) are provided.
The SPI interface has a built-in chip addressing decoder,
allowing communication with multiple MAX14906 devices
utilizing a shared SPI with a common chip select (CS). The
SPI interface provides flexibility for global and per-chan-
nel configuration and diagnostics, including supply over-
voltage and undervoltage detection, wire-break or open-
wire detection, thermal overload and current limit report-
ing, and more. For high-speed operation, the digital input
and output states can be monitored and changed directly
using pins for increased system speed and throughput.
Open-wire detection monitors open-wire/open-load condi-
tions with switches in the off state. LED drivers provide in-
dication of per-channel fault, status, and supply undervolt-
age conditions. Internal active clamps allow for fast turn-
off of inductive loads. Integrated line-to-ground and line-
to-line surge protection only requires a TVS on VDD.
The MAX14906 is available in a compact 48-pin 7mm x
7mm QFN package.
Applications
● Industrial Digital Output and Input Module
● Configurable Digital Input/Output
● Motor Control
● PLC Systems
● Distributed Control Systems (DCS)
Benefits and Features
● Per-Channel Configurability Enables Wide Range of
Applications
• Digital Output: High-Side (HS) Switch or Push-Pull
(PP) Driver
• Digital Input: Software Selectable Type 1 and 3, or
Type 2
• Current Limit Settable from 130mA to 1.2A
• Serial (SPI) or Direct Operation Using Pins
• Independent Channel Powering
● Fault Tolerant with Built-In Diagnostics
• Per-Channel Diagnostics
• Integrated Voltage Supply Monitoring and Short-to-
VDD Detection
• Open-Wire/Open-Load Detection
• Thermal Shutdown Protection
• Watchdog Timer
• 5-Bit CRC Code Generation and Checking for SPI
Error Detection
● High Integration Reduces BOM Count and PCB
Space
• Integrated LDO Compatible with 5V Logic Devices
• Internal Active Clamps for Fast Inductive Load
Turn-Off
• 0.6μs (typ) DO and 1μs (typ) DI Propagation Delays
• Addressable SPI
• 7mm x 7mm TQFN Package
● Reduced Power and Heat Dissipation
• Low RDSON for High-Side Switches, 120mΩ (typ)
• Accurate Output Current Limiting
• Accurate Input Current Sinks, Type 1 and 3, or
Type 2
● Robust Design
• 10V to 40V Operating Supply Range, 65V Tolerant
• SafeDemagTM Allows Fast Turn-Off of Unlimited
Inductance
• ±16kV Air-Gap ESD and ±8kV Contact ESD
• ±1kV Surge Tolerant Using TVS Protection on VDD
to GND
• -40°C to +125°C Operating Temperature
Ordering Information appears at end of datasheet.
SafeDemag is a trademark of Maxim Integrated Products, Inc.
19-100736; Rev 2; 8/21


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX14906 Datasheet

Digital I/O

No Preview Available !

MAX14906
Quad Industrial Digital Output, Digital Input
3.3V
24V
0.1µF
1µF
24.9kΩ
0.1µF
Quad-Channel Industrial
Digital Output/Digital Input
24V
24V
24V
1µF
1µF
1µF
10µF
36V
VDD
GPIO
GPIO
GPIO
GPIO
10kΩ
VL EN REGEN V5
CRCEN
READY
VDDOK VLED
D4
D3
D2
VDD4 VDD3
VDD2 VDD1
VDD
G4
DOI4
DOI4
DOI4
GPIO
GPIO
CONTROLLER
CS
D1
SYNCH
A0
A1
CS
MAX14906
G3
DOI3
DOI3
DOI3
SCLK
CLK
MOSI
SDI
MISO
INT
SDO
3.3V
10kΩ
FAULT
G2
DOI2
DOI2
DOI2
5.6kΩ
L4
5.6kΩ
L3
5.6kΩ
L2
G1
DOI1
DOI1
DOI1
5.6kΩ
L1
SLED
FLED
GND
PGND
EP
www.maximintegrated.com
Maxim Integrated | 2


Part Number MAX14906
Description Digital I/O
Maker Maxim Integrated
PDF Download

MAX14906 Datasheet PDF






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