Overview
The ISO7330CDWR from Texas Instruments is a low-power, triple-channel digital isolator designed to provide robust electromagnetic compatibility (EMC) and high isolation barriers. This device is part of the ISO733x family, which offers advanced features for industrial and other high-reliability applications. The ISO7330CDWR operates from 3.3 V and 5 V supply levels, making it versatile for various system designs. It features integrated noise filters to handle harsh industrial environments and short noise pulses at the device input pins.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC1, VCC2) | -0.5 | 6 | V | |
| Input Voltage (INx, OUTx, ENx) | -0.5 | VCC + 0.5 | V | |
| Output Current (IO) | ±15 | mA | ||
| Junction Temperature (TJ) | 150 | °C | ||
| Propagation Delay Time (Typical at 5V) | 25 | 32 | 39 | ns |
| Common-Mode Transient Immunity (CMTI) | 25 | 70 | kV/μs | |
| Isolation Voltage | 4242 VPK (DIN V VDE V 0884-10) | |||
| Operating Temperature Range | -40 | 125 | °C |
Key Features
- Low power consumption with supply currents as low as 0.5 mA per channel at 3.3 V and 1.1 mA per channel at 5 V for data rates up to 25 Mbps.
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, surge, and emissions compliance.
- Integrated noise filters for handling short noise pulses in harsh industrial environments.
- TTL input thresholds and 3.3 V and 5 V level translation.
- Wide temperature range operation from -40°C to 125°C.
- High isolation barrier life of more than 25 years.
- Safety and regulatory approvals including DIN V VDE V 0884-10, UL 1577, CSA, IEC 60950-1, and IEC 61010-1.
Applications
- Opto-coupler replacement in industrial fieldbus systems such as ProfiBus, ModBus, and DeviceNet.
- Servo control interfaces and motor control systems.
- Isolated power supplies and battery packs.
- Industrial automation and control systems.
Q & A
- What is the primary function of the ISO7330CDWR?
The ISO7330CDWR is a triple-channel digital isolator designed to provide electrical isolation between input and output signals while maintaining high data integrity.
- What are the operating supply voltage ranges for the ISO7330CDWR?
The device operates from 3.3 V and 5 V supply levels.
- What is the maximum data rate supported by the ISO7330CDWR?
The device supports data rates up to 25 Mbps.
- What is the typical propagation delay time for the ISO7330CDWR?
The typical propagation delay time is 32 ns at 5 V supply.
- Does the ISO7330CDWR have built-in noise filtering capabilities?
Yes, it has integrated noise filters to handle short noise pulses in harsh industrial environments.
- What are the safety and regulatory approvals for the ISO7330CDWR?
The device has approvals including DIN V VDE V 0884-10, UL 1577, CSA, IEC 60950-1, and IEC 61010-1.
- What is the operating temperature range of the ISO7330CDWR?
The device operates over a temperature range from -40°C to 125°C.
- Can the ISO7330CDWR be used in place of opto-couplers?
Yes, it can be used as a replacement for opto-couplers in various industrial applications.
- What is the isolation voltage rating of the ISO7330CDWR?
The device has an isolation voltage rating of 4242 VPK according to DIN V VDE V 0884-10.
- How long is the expected isolation barrier life of the ISO7330CDWR?
The expected isolation barrier life is more than 25 years.
