Overview
The ISO7740DW, produced by Texas Instruments, is a high-performance, quad-channel digital isolator designed to provide robust electromagnetic compatibility (EMC) and high isolation ratings. This device is part of the ISO774x family, which includes reinforced insulation ratings according to various international standards such as UL 1577, IEC 61010-1, IEC 62368-1, and IEC 60601-1. The ISO7740DW is suitable for applications requiring high data rates and stringent safety certifications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC1, VCC2) | -0.5 to 6 | V |
| Junction Temperature (TJ) | -65 to 150 | °C |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Isolation Voltage (VIOWM) | 5000 (DW package) | VRMS |
| Maximum Transient Isolation Voltage (VIOTM) | 8000 | VPK |
| Maximum Surge Isolation Voltage (VIOSM) | 12800 | VPK |
| Data Rate | 100 Mbps | |
| Package Type | 16-pin SOIC-WB and QSOP | |
| ESD Ratings (HBM) | ±6000 V | |
| Thermal Resistance (RθJA) | 83.4 °C/W (DW package) |
Key Features
- High-performance, quad-channel digital isolators with 5000 VRMS isolation rating (DW package).
- Robust isolation barrier with a projected lifetime of over 30 years at 1500 VRMS working voltage.
- Compliance with various safety standards including UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
- High electromagnetic immunity and low emissions at low power consumption.
- Enable pins for putting outputs in high impedance for multi-master driving applications and reducing power consumption.
- Support for CMOS or LVCMOS digital I/Os.
- Data rate of up to 100 Mbps.
Applications
- Industrial automation
- Motor control
- Power supplies
- Solar inverters
- Medical equipment
Q & A
- What is the maximum isolation voltage of the ISO7740DW?
The maximum working isolation voltage (VIOWM) is 5000 VRMS for the DW package.
- What are the safety certifications for the ISO7740DW?
The device is certified according to UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
- What is the data rate supported by the ISO7740DW?
The device supports a data rate of up to 100 Mbps.
- What are the package types available for the ISO7740DW?
The device is available in 16-pin SOIC-WB and QSOP packages.
- What is the junction temperature range for the ISO7740DW?
The junction temperature range is from -65°C to 150°C).
- How does the ISO7740DW handle electromagnetic compatibility?
The device has enhanced electromagnetic immunity and low emissions at low power consumption).
- What is the purpose of the enable pins on the ISO7740DW?
The enable pins can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption).
- What types of digital I/Os are supported by the ISO7740DW?
The device supports CMOS or LVCMOS digital I/Os).
- What are some typical applications for the ISO7740DW?
Typical applications include industrial automation, motor control, power supplies, solar inverters, and medical equipment).
- What is the thermal resistance (RθJA) of the ISO7740DW in the DW package?
The thermal resistance (RθJA) is 83.4 °C/W for the DW package).
