Overview
The ISO1211DR is a single-channel isolated 24-V to 60-V digital input receiver produced by Texas Instruments. This device is designed to meet the IEC 61131-2 Type 1, 2, and 3 characteristics, making it suitable for various industrial applications. It features an isolated digital interface that can receive up to 60-V digital input signals and provide isolated digital outputs without requiring a field-side power supply. The ISO1211DR is packaged in a compact 8-SOIC package, enhancing space efficiency in design.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC1 Supply voltage, control side | -0.5 | 6 | V | |
| VOUTx, VEN Voltage on OUTx pins and EN pin | -0.5 | VCC1 + 0.5 | V | |
| Maximum power dissipation, both sides | 450 | mW | ||
| Maximum power dissipation, output side | 20 | mW | ||
| Maximum power dissipation, field input side | 430 | mW | ||
| Withstand isolation voltage | 2500 | VRMS | ||
| Operating temperature range | -40 | 125 | °C | |
| Junction-to-ambient thermal resistance | 146.1 | °C/W |
Key Features
- Designed for PLC digital input modules and other industrial applications.
- Digital interface for reliable signal processing.
- Compact 8-SOIC package for space-efficient designs.
- Wide supply voltage range (2.25V to 5.5V) for flexibility in various applications.
- No field-side power supply required.
- External resistor (RSENSE) for precise current limit setting.
- Compliant with IEC 61131-2 Type 1, 2, and 3 characteristics.
- Safety-related certifications including UL 1577 recognition, IEC 60950-1, IEC 62368-1, and more.
Applications
- Programmable Logic Controller (PLC) – Digital Input Modules and Mixed I/O Modules.
- Motor Drive I/O and Position Feedback.
- CNC Control.
- Data Acquisition.
- Binary Input Modules.
Q & A
- What is the ISO1211DR used for?
The ISO1211DR is used as a single-channel isolated 24-V to 60-V digital input receiver, primarily in PLC digital input modules and other industrial applications.
- What package type does the ISO1211DR come in?
The ISO1211DR is packaged in a compact 8-SOIC package.
- What is the supply voltage range for the ISO1211DR?
The supply voltage range for the ISO1211DR is 2.25V to 5.5V.
- Does the ISO1211DR require a field-side power supply?
No, the ISO1211DR does not require a field-side power supply.
- What safety certifications does the ISO1211DR have?
The ISO1211DR has safety-related certifications including UL 1577 recognition, IEC 60950-1, IEC 62368-1, and more.
- What is the maximum withstand isolation voltage for the ISO1211DR?
The maximum withstand isolation voltage for the ISO1211DR is 2500 VRMS.
- What is the operating temperature range for the ISO1211DR?
The operating temperature range for the ISO1211DR is -40°C to 125°C.
- How does the ISO1211DR manage current limits?
The ISO1211DR uses an external resistor (RSENSE) to precisely set the current limit for the input signal.
- What are some common applications of the ISO1211DR?
Common applications include PLC digital input modules, motor drive I/O, CNC control, data acquisition, and binary input modules.
- Is the ISO1211DR compliant with any specific industrial standards?
Yes, the ISO1211DR is compliant with IEC 61131-2 Type 1, 2, and 3 characteristics.
