Overview
The ISO7041FDBQR is an ultra-low power, four-channel digital isolator produced by Texas Instruments. This device is designed to isolate CMOS or LVCMOS digital I/Os, making it suitable for applications where electrical isolation is critical. The ISO7041FDBQR features a robust isolation barrier with a 3000-V RMS isolation rating and a projected lifetime of over 100 years. It operates over a wide supply range from 1.71 V to 5.5 V and supports data rates up to 4 Mbps. The device is packaged in a 16-pin QSOP (DBQ) package, making it compact and efficient for various system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | QSOP (DBQ) | - |
| Pins | 16 | - |
| Operating Temperature Range | -55 to 125 | °C |
| Quiescent Current per Channel (3.3 V) | 3.5 µA | - |
| Dynamic Current per Channel at 100 kbps (3.3 V) | 15 µA | - |
| Dynamic Current per Channel at 1 Mbps (3.3 V) | 116 µA | - |
| Isolation Rating | 3000 V RMS | - |
| Common Mode Transient Immunity (CMTI) | ±100 kV/µs | - |
| Supply Voltage Range | 1.71 V to 1.89 V, 2.25 V to 5.5 V | - |
| Data Rate | Up to 4 Mbps | - |
| Default Output | High (ISO7041), Low (ISO7041F) | - |
Key Features
- Ultra-low power consumption: 3.5 µA per channel quiescent current at 3.3 V.
- Robust isolation barrier with >100-year projected lifetime.
- 3000 V RMS isolation rating.
- Wide supply range: 1.71 V to 1.89 V and 2.25 V to 5.5 V.
- Wide temperature range: -55°C to +105°C (1.71 V to 1.89 V) and -55°C to +125°C (2.25 V to 5.5 V).
- Small 16-QSOP package (16-DBQ).
- Signaling rate up to 4 Mbps.
- Default output high and low options.
- Robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity.
- ±8 kV IEC 61000-4-2 contact discharge protection across the isolation barrier.
- Very low emissions.
- Safety-related certifications: UL 1577, DIN VDE V 0884-11, CQC, TUV, CSA, IECEx, and ATEX.
Applications
- 4-mA to 20-mA loop powered field transmitters.
- Factory automation and process automation.
- Low-power GPIO, UART, and SPI isolation.
Q & A
- What is the primary function of the ISO7041FDBQR?
The ISO7041FDBQR is an ultra-low power, four-channel digital isolator designed to isolate CMOS or LVCMOS digital I/Os. - What is the isolation rating of the ISO7041FDBQR?
The device has a 3000 V RMS isolation rating. - What are the operating temperature ranges for the ISO7041FDBQR?
The device operates from -55°C to +105°C (1.71 V to 1.89 V) and -55°C to +125°C (2.25 V to 5.5 V). - What are the default output options for the ISO7041FDBQR?
The default output is high for the ISO7041 and low for the ISO7041F. - What is the maximum data rate supported by the ISO7041FDBQR?
The device supports data rates up to 4 Mbps. - What certifications does the ISO7041FDBQR hold?
The device holds certifications such as UL 1577, DIN VDE V 0884-11, CQC, TUV, CSA, IECEx, and ATEX. - What is the quiescent current consumption per channel at 3.3 V?
The quiescent current consumption is 3.5 µA per channel at 3.3 V. - How many channels does the ISO7041FDBQR have and what are their directions?
The device has four channels: three forward-direction channels and one reverse-direction channel. - What is the package type and pin count of the ISO7041FDBQR?
The device is packaged in a 16-pin QSOP (DBQ) package. - What kind of electromagnetic compatibility does the ISO7041FDBQR offer?
The device offers robust electromagnetic compatibility (EMC) with system-level ESD, EFT, and surge immunity.
