Overview
The ISO7141FCCDBQR, produced by Texas Instruments, is a quad-channel digital isolator designed to provide galvanic isolation up to 2500 V RMS for 1 minute per UL 1577 and 4242 V PK per VDE. This device is part of the ISO71xx family, which includes the ISO7131, ISO7140, and ISO7141 models. The ISO7141FCCDBQR features three forward and one reverse-direction isolation channels, making it suitable for a variety of noise-prone applications. It operates from 2.7-V, 3.3-V, and 5-V supply and logic levels, ensuring versatility in different system designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Maximum Signaling Rate | 50 Mbps (with 5-V supplies), 40 Mbps (with 3.3-V or 2.7-V supplies) | Mbps |
| Supply Voltage | 2.7 to 5.5 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Package Type | QSOP-16 (DBQ) | |
| Number of Pins | 16 | |
| Isolation Voltage | 2500 V RMS (1 minute), 4242 V PK | V |
| Propagation Delay | 23 ns (typical at 3.3 V) | ns |
| Transient Immunity | 50 kV/µs (typical) | kV/µs |
| Power Consumption (per channel at 3.3 V) | 1.3 mA at 1 Mbps, 2.6 mA at 25 Mbps | mA |
Key Features
- Robust design with integrated noise filters on inputs.
- Default output low option (suffix F).
- Low power consumption.
- Low propagation delay: 23 ns typical at 3.3 V.
- Wide temperature range: -40°C to 125°C.
- 50 kV/µs transient immunity.
- Long life with SiO2 isolation barrier.
- Operates from 2.7-V, 3.3-V, and 5-V supply and logic levels.
- Small QSOP-16 package.
- Safety and regulatory approvals: UL 1577, VDE V 0884-10, CSA, IEC 60950-1, IEC 61010-1, CQC certification.
Applications
- General-purpose isolation.
- Industrial fieldbus: Profibus, Modbus™, DeviceNet.
- Data buses: RS-232, RS-485, Serial Peripheral Interface.
- Noise-prone environments where galvanic isolation is necessary.
Q & A
- What is the maximum signaling rate of the ISO7141FCCDBQR?
The maximum signaling rate is 50 Mbps with 5-V supplies and 40 Mbps with 3.3-V or 2.7-V supplies. - What is the operating temperature range of this device?
The operating temperature range is -40°C to 125°C. - What type of package does the ISO7141FCCDBQR come in?
The device comes in a QSOP-16 (DBQ) package. - What is the isolation voltage of the ISO7141FCCDBQR?
The isolation voltage is up to 2500 V RMS for 1 minute and 4242 V PK. - How many channels does the ISO7141FCCDBQR have?
The device has three forward and one reverse-direction isolation channels. - What are the typical power consumption values for this device?
At 3.3 V, the typical power consumption is 1.3 mA at 1 Mbps and 2.6 mA at 25 Mbps per channel. - What safety and regulatory approvals does the ISO7141FCCDBQR have?
The device has approvals from UL 1577, VDE V 0884-10, CSA, IEC 60950-1, IEC 61010-1, and CQC certification. - What are some common applications for the ISO7141FCCDBQR?
Common applications include general-purpose isolation, industrial fieldbus, data buses like RS-232 and RS-485, and serial peripheral interfaces. - Does the ISO7141FCCDBQR have integrated noise filters?
Yes, the device features integrated noise filters on the inputs. - What is the default output state of the ISO7141FCCDBQR when the suffix F is used?
The default output state is low when the suffix F is used.
