Overview
The ISO7842DWR is a high-performance, quad-channel digital isolator manufactured by Texas Instruments. This device is designed to provide robust electrical isolation and signal integrity in a variety of applications. It features a 8000VPK isolation voltage and is certified to various safety and regulatory standards, including VDE, CSA, CQC, and TUV. The isolator is capable of operating over a wide temperature range of –55°C to +125°C and supports data transfer rates up to 100Mbps. It is particularly useful in applications where electrical isolation is critical for safety and equipment protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 16 | - |
| Operating Temperature Range | –55 to +125 | °C |
| Signaling Rate | Up to 100 | Mbps |
| Supply Voltage Range | 2.25 to 5.5 | V |
| Level Translation | 2.25 to 5.5V | V |
| Isolation Voltage | 8000VPK (reinforced), 5.7kVRMS | V |
| Number of Channels | 4 (2 forward, 2 reverse) | - |
| Propagation Delay | 11ns (typical at 5V supplies) | ns |
| Power Consumption | Typical 1.7mA per channel at 1Mbps | mA |
| CMTI (Min) | ±100kV/µs | kV/µs |
Key Features
- High-performance, quad-channel digital isolator with 8000VPK reinforced isolation voltage.
- Wide supply range: 2.25V to 5.5V and level translation within this range.
- Wide temperature range: –55°C to +125°C.
- Low-power consumption, with typical 1.7mA per channel at 1Mbps.
- Low propagation delay: 11ns typical at 5V supplies.
- Industry-leading CMTI (Common Mode Transient Immunity): ±100kV/µs.
- Robust electromagnetic compatibility (EMC) and low emissions.
- System-level ESD, EFT, and surge immunity.
- Enable pins for high impedance output and reduced power consumption.
- Available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
Applications
- Industrial Automation.
- Motor Control.
- Power Supplies.
- Solar Inverters.
- Medical Equipment.
- Hybrid Electric Vehicles).
The ISO7842DWR is ideal for use in any application where electrical isolation is critical for safety and equipment protection, ensuring reliable communication by separating electrical circuits while transferring data across an isolation barrier).
Q & A
- What is the primary function of the ISO7842DWR?
The ISO7842DWR is a high-performance, quad-channel digital isolator designed to provide electrical isolation and signal integrity in various applications).
- What is the isolation voltage of the ISO7842DWR?
The device has a reinforced isolation voltage of 8000VPK and a working isolation voltage of 5.7kVRMS).
- What is the operating temperature range of the ISO7842DWR?
The operating temperature range is –55°C to +125°C).
- What is the signaling rate of the ISO7842DWR?
The signaling rate is up to 100Mbps).
- What are the key safety certifications for the ISO7842DWR?
The device is certified according to VDE, CSA, CQC, and TUV standards, including DIN EN IEC 60747-17, UL 1577, and others).
- What are the typical power consumption and propagation delay of the ISO7842DWR?
The typical power consumption is 1.7mA per channel at 1Mbps, and the propagation delay is 11ns typical at 5V supplies).
- What are the package options for the ISO7842DWR?
The device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages).
- What are some common applications for the ISO7842DWR?
Common applications include industrial automation, motor control, power supplies, solar inverters, medical equipment, and hybrid electric vehicles).
- How does the ISO7842DWR enhance electromagnetic compatibility?
The device features innovative chip design and layout techniques that enhance electromagnetic compatibility, easing system-level ESD, EFT, surge, and emissions compliance).
- What is the purpose of the enable pins on the ISO7842DWR?
The enable pins can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption).
