Description:

The ISOW7841A-Q1 is a high-performance, quad-channel, reinforced digital isolator with an integrated, high-efficiency power converter that meets automotive standards. The low-emission, integrated DC/DC converter operates efficiently and provides up to 650mW of isolated power, configurable with various input and output voltages. Consequently, this device enables space-constrained isolation designs without the need for a separate isolated power supply.

Features:

• Qualified for automotive applications

• AEC-Q100 qualified with the following characteristics:

– Device temperature grade 1: –40°C to +125°C ambient operating temperature range

• 100Mbps data rate

• Functional safety capable

– Documentation available to aid in the design of functional safety systems

• Robust isolation barrier:

– >100-year projected lifetime at 1 kVRMS working voltage

– Isolation rating up to 5000 VRMS

– Surge immunity up to 10 kVPK

– ±100 kV/µs minimum CMTI

• Integrated high-efficiency DC/DC converter with on-chip transformer

• Wide supply voltage range: 3V to 5.5V

• Regulated 5V or 3.3V output

• Output power up to 0.65W

• 5V to 5V; 5V to 3.3V: Available load current ≥ 130 mA

• 3.3V to 3.3V: Available load current ≥ 75mA; 3.3V to 5V: Available load current ≥ 40 mA

• Soft-start to limit inrush current

• Overload and short-circuit protection

• Thermal shutdown

• Default output: High and low options

• Low propagation delay: 13 ns (typical, 5V supply)

• Excellent Electromagnetic Compatibility (EMC)

– System-level ESD, EFT, and surge immunity

– ±8kV IEC 61000-4-2 contact discharge protection across the isolation barrier

– Low emissions (EMI)

• 16-pin wide-body SOIC package

• Safety-related certifications:

– 7071 VPK reinforced isolation per DIN V VDE V 0884-11:2017-01

– 5000 VRMS isolation for 1 minute per UL 1577

– CSA certification per IEC 60950-1, IEC 62368-1, and IEC 60601-1 end equipment standards

– CQC certification per GB4943.1-2011

– TUV certification per EN 60950-1 and EN 61010-1

– All certifications planned

Applications:

• Battery Management Systems (BMS)

• On-Board Chargers (OBC)

• Traction Inverters

• DC/DC Converters