Overview
The ISO7231MDWR is a high-speed, triple-channel digital isolator produced by Texas Instruments. This device is part of the ISO7230 and ISO7231 series, each featuring multiple channel configurations and output enable functions. The ISO7231MDWR uses Texas Instruments’ silicon dioxide (SiO2) isolation barrier to separate logic input and output buffers, effectively blocking high voltage, isolating grounds, and preventing noise currents from interfering with or damaging sensitive circuitry. It is designed to operate in conjunction with isolated power supplies, making it ideal for various industrial and automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Signaling Rate Options | 25 and 150 Mbps | - |
| Channel-to-Channel Output Skew | 1 ns maximum | ns |
| Pulse-Width Distortion (PWD) | 2 ns maximum | ns |
| Jitter Content | 1 ns typical at 150 Mbps | ns |
| ESD Protection | 4 kV | - |
| Supply Voltage | 3.3 V or 5 V | V |
| Level Translation | 3.3 V and 5 V | - |
| Maximum Repetitive Peak Isolation Voltage | 560 VPK (AC voltage) | V |
| Maximum Transient Isolation Voltage | 4000 VPK | V |
| Junction-to-Ambient Thermal Resistance | 168 °C/W | °C/W |
Key Features
- 25 and 150 Mbps signaling rate options
- Low channel-to-channel output skew; 1 ns maximum
- Low pulse-width distortion (PWD); 2 ns maximum
- Low jitter content; 1 ns typical at 150 Mbps
- Typical 25-Year Life at Rated Working Voltage
- 4 kV ESD protection
- Operate with 3.3 V or 5 V supplies
- 3.3 V and 5 V level translation
- High electromagnetic immunity
- -40°C to 125°C operating range
- Safety Related Certifications: DIN EN IEC 60747-17, UL 1577, IEC 61010-1, IEC 62368-1
Applications
- Factory Automation: Modbus, Profibus™, DeviceNet™ Data Buses
- Computer Peripheral Interface
- Servo Control Interface
- Data Acquisition
Q & A
- What is the ISO7231MDWR used for? The ISO7231MDWR is used as a high-speed, triple-channel digital isolator to block high voltage, isolate grounds, and prevent noise currents from interfering with sensitive circuitry.
- What are the signaling rate options for the ISO7231MDWR? The device supports 25 and 150 Mbps signaling rate options.
- What is the maximum channel-to-channel output skew of the ISO7231MDWR? The maximum channel-to-channel output skew is 1 ns.
- What level of ESD protection does the ISO7231MDWR offer? The device offers 4 kV ESD protection.
- What are the operating supply voltages for the ISO7231MDWR? The device can operate with 3.3 V or 5 V supplies.
- What is the operating temperature range of the ISO7231MDWR? The operating temperature range is -40°C to 125°C.
- Does the ISO7231MDWR support level translation? Yes, it supports 3.3 V and 5 V level translation.
- What safety certifications does the ISO7231MDWR have? It has certifications such as DIN EN IEC 60747-17, UL 1577, IEC 61010-1, and IEC 62368-1.
- What is the typical life expectancy of the ISO7231MDWR at rated working voltage? The typical life expectancy is 25 years at rated working voltage.
- What are some common applications of the ISO7231MDWR? Common applications include factory automation, computer peripheral interfaces, servo control interfaces, and data acquisition.
