Part Details for MAX174 by Maxim Integrated Products

Features<p>High-speed RS-485 communication<p>Isolated power and data<p>Micro PLC form factor<p>Extended Protection with TVS on RS-485 Lines<p>Device drivers<p>Example C source code<p>Test data

Features<p>Isolated power and data<p>Micro PLC form factor<p>Device drivers<p>Example C source code

The MAXREFDES1196 is a DC-DC boost power supply that delivers up to 4A at 24V from a 10V to 18V supply voltage. It is designed for equipment that needs a high-power, 24V output voltage that is generated from a 12V DC bus.<p>The MAXREFDES1196 employs techniques that use the boost regulators to generate voltage higher than input voltage. This document explains how the MAX17499B current-mode PWM converter can be used to generate 24V from 10V to 18V input voltage.<p>The MAX17499B current-mode PWM controller contains all the control circuitry required for the design of wide-inputvoltage isolated and nonisolated power supplies. The MAX17499B is well suited for low input voltage (9.5VDC to 24VDC) power supplies. An input undervoltage lockout (UVLO) is provided for programming the input-supply start voltage and to ensure proper operation during brownout conditions. An open-drain UVLO flag output with 210μs internal delay allows the sequencing of a secondary-side controller. The input-supply start voltage is externally programmable with a voltage-divider. A UVLO/EN input is used to shut down the devices. Internal digital softstart eliminates output voltage overshoot. The switching frequency for this IC is programmable with an external resistor. The MAX17499B provides a 75% maximum duty-cycle limit. This device is available in 10-pin μMAX® package and is rated for operation over the -40°C to +125°C temperature range.

Features<p>Functional Insulation<p>Compact and Flexible<p>Minimal External Components<p>Robust Operation in Adverse Industrial Environments<p>5V 400mA with 20% Overrange Current<p>±5% Output Accuracy

The Alameda (MAXREFDES24#) reference design features a scalable solution for multi-channel analog output modules. The configurable 4-channel design generates all typical bipolar current and voltage output ranges up to 24mA/12V with less than ±0.1% typical total unadjusted error (TUE). Integrated detection of power and cable faults provides the user with the necessary diagnostics for robust industrial control applications.<p>A buffered MAX5134 four-channel, 16-bit digital-to-analog converter (DAC) generates the low voltage signals that drive the inputs of four MAX15500 signal conditioners (output drivers). Both devices communicate with the host over an isolated SPI bus and can be daisy chained together for designs requiring higher channel counts. A MAX6126 produces a precision voltage reference to the circuit for maximum performance over environmental conditions. The design also incorporates an isolated power supply circuit with a wide DC input range using a MAX17498B peak current-mode flyback controller.<p>The board is designed in a compact pluggable form factor for easy evaluation with a PC (using the MAXREFDES24EVSYS design accelerator kit) or for development using a LX9 or ZedBoard Xilinx based platform. Refer to the Details tab for more information and performance data. Design files and firmware can be downloaded from the Design Resources tab.<p>MAXREFDES24EVSYS User Manual<p>LX9 Quick Start Guide<p>ZedBoard Quick Start Guide

Features<p>Two independent analog inputs<p>Two independent analog outputs<p>Isolated power and data<p>High-speed 400ksps analog input sampling rate<p>High-accuracy 16-bit resolution<p>Voltage output settles to within 2 LSB in 17µs<p>Current output settles to within 2 LSB in 77µs<p>Device drivers<p>Example C source code<p>Configuration files for ZedBoard™ platform<p>FMC-compatible<p>Competitive Advantages<p>High speed<p>High accuracy<p>Low noise

Features<p>Programmable high-accuracy current/voltage output<p>High accuracy<p>±10V, 0 to 10V, and 4–20mA Inputs<p>Current output drives 0 to 1kΩ<p>Voltage output drives loads down to 1kΩ<p>Extensive error reporting<p>Isolated power and data<p>Device drivers<p>Example C source code<p>Competitive Advantages<p>Flexibility<p>System safety<p>Small solution size