Overview
The ISOW7842DWE from Texas Instruments is a high-performance, quad-channel reinforced digital isolator that integrates a high-efficiency power converter. This device is designed to provide robust isolation and power conversion in a compact SO-MOD (DWE) package with 16 pins. It eliminates the need for a separate isolated power supply, making it ideal for space-constrained isolated designs. The ISOW7842DWE offers a wide range of features and certifications, ensuring reliability and safety in various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SO-MOD (DWE), 16 pins |
| Operating Temperature Range | -40°C to 125°C |
| Data Rate | Up to 100 Mbps |
| Input Supply Range | 3 V to 5.5 V |
| Output Voltage | Regulated 5 V or 3.3 V |
| Output Power | Up to 0.65 W |
| Available Load Current | 5 V to 5 V: ≥ 130 mA, 5 V to 3.3 V: ≥ 130 mA, 3.3 V to 3.3 V: ≥ 75 mA, 3.3 V to 5 V: ≥ 40 mA |
| Propagation Delay | 13 ns Typ (5-V supply) |
| Isolation Rating | Up to 5000 V RMS, Up to 10 kV PK surge capability |
| CMTI | ±100 kV/µs minimum |
| Safety Certifications | 7071-V PK reinforced isolation per DIN V VDE V 0884-11:2017-01, CSA, CQC, TUV certifications |
Key Features
- Robust isolation barrier with >100-Year projected lifetime at 1 kV RMS working voltage
- Integrated high-efficiency DC-DC converter with on-chip transformer
- Soft-start to limit inrush current, overload and short-circuit protection, and thermal shutdown
- Default output options: High and Low
- Low propagation delay and robust electromagnetic compatibility (EMC)
- System-level ESD, EFT, and surge immunity, ±8 kV IEC 61000-4-2 contact discharge protection across isolation barrier
- Low emissions and extended temperature range: –40°C to +125°C
Applications
- Medical devices requiring high isolation and safety standards
- Industrial bus control and automation systems
- Aircraft electronic systems and radar data buses
- Analog-to-digital conversion and other high-reliability applications
- Space-constrained isolated designs where separate isolated power supplies are not feasible
Q & A
- What is the primary function of the ISOW7842DWE?
The ISOW7842DWE is a quad-channel reinforced digital isolator with an integrated high-efficiency power converter, designed to provide robust isolation and power conversion.
- What is the data rate capability of the ISOW7842DWE?
The device supports data rates up to 100 Mbps.
- What are the input and output voltage ranges of the ISOW7842DWE?
The input supply range is 3 V to 5.5 V, and the output voltage can be regulated to 5 V or 3.3 V.
- What is the maximum output power of the ISOW7842DWE?
The device can provide up to 0.65 W of isolated power.
- What safety certifications does the ISOW7842DWE hold?
The device holds certifications such as 7071-V PK reinforced isolation per DIN V VDE V 0884-11:2017-01, CSA, CQC, and TUV certifications.
- What is the operating temperature range of the ISOW7842DWE?
The operating temperature range is –40°C to +125°C.
- What protection features does the ISOW7842DWE include?
The device includes soft-start, overload and short-circuit protection, and thermal shutdown.
- What is the propagation delay of the ISOW7842DWE?
The propagation delay is 13 ns Typ (5-V supply).
- What is the isolation rating of the ISOW7842DWE?
The device has an isolation rating of up to 5000 V RMS and up to 10 kV PK surge capability.
- What are some common applications of the ISOW7842DWE?
Common applications include medical devices, industrial bus control, aircraft electronic systems, and analog-to-digital conversion.
- What package type and pin count does the ISOW7842DWE use?
The device is packaged in a SO-MOD (DWE) package with 16 pins.
