Overview
The ISO7842FDWWR is a high-performance, quad-channel digital isolator produced by Texas Instruments. This device is designed to provide robust electrical isolation and is suitable for a wide range of applications requiring high reliability and safety. The ISO7842FDWWR features a 8000VPK isolation voltage and is certified to various international safety standards, including VDE, CSA, CQC, and TUV. It operates over a wide supply range of 2.25V to 5.5V and supports signaling rates up to 100Mbps. The device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Signaling Rate | 0 | 100 | Mbps | ||
| Supply Voltage Range | 2.25 | 5.5 | V | ||
| High-level Input Voltage (VIH) | 0.7 × VCCI | VCCI | V | ||
| Low-level Input Voltage (VIL) | 0.3 × VCCI | 0 | V | ||
| Junction Temperature (TJ) | –55 | 150 | °C | ||
| Ambient Temperature (TA) | –55 | 125 | °C | ||
| Maximum Power Dissipation | 200 | mW | |||
| Maximum Transient Isolation Voltage | 8000 | VPK | |||
| Maximum Surge Isolation Voltage | 12800 | VPK |
Key Features
- High-performance, quad-channel digital isolator with 8000VPK isolation voltage.
- Wide supply range: 2.25V to 5.5V.
- Signaling rate up to 100Mbps.
- Wide temperature range: –55°C to +125°C.
- Reinforced isolation certifications according to VDE, CSA, CQC, and TUV.
- High electromagnetic immunity and low emissions at low-power consumption.
- Enable pins for high impedance and multi-master driving applications.
- 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
Q & A
- What is the maximum isolation voltage of the ISO7842FDWWR?
The maximum transient isolation voltage is 8000VPK.
- What are the supported supply voltage ranges for the ISO7842FDWWR?
The device operates over a supply range of 2.25V to 5.5V.
- What is the maximum signaling rate of the ISO7842FDWWR?
The signaling rate can go up to 100Mbps.
- What are the temperature operating ranges for the ISO7842FDWWR?
The device operates from –55°C to +125°C.
- What certifications does the ISO7842FDWWR hold?
The device is certified according to VDE, CSA, CQC, and TUV standards.
- What package types are available for the ISO7842FDWWR?
The device is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.
- How does the ISO7842FDWWR handle electromagnetic interference?
The device provides high electromagnetic immunity and low emissions.
- What is the purpose of the enable pins on the ISO7842FDWWR?
The enable pins can put the respective outputs in high impedance for multi-master driving applications and reduce power consumption.
- What are some common applications for the ISO7842FDWWR?
Common applications include industrial automation, motor control, power supplies, solar inverters, medical equipment, and hybrid electric vehicles.
- How does the ISO7842FDWWR protect against noise currents?
The device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.
