PRODUCT INNOVATIONS
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Digital isolators are AEC-Q100 qualified for electric-hybrid vehicles
Tuning its proprietary iCoupler digital isolation technology to meet
the reliability and quality needs of emerging electric-hybrid vehicles,
Analog Devices is introducing a family of digital isolators designed to
operate in today’s electrically challenging automotive
environment. Unlike the relatively low-voltage signals powering most
in-car entertainment, safety, and power train systems, hybrid-vehicle
batteries can operate at voltages in excess of 600 V, which creates a
need to galvanically isolate system-critical electronics. Analog
Devices’ new ADuM120xW, ADuM130xW and ADuM140xW digital isolators
were developed for electric-hybrid vehicle systems, such as motor
drives and battery management systems. These new iCoupler products are
the first digital isolators to carry an AEC-Q100 qualified
–40°C to +125°C automotive temperature rating.
“Until today, the only isolation available for hybrid car and truck batteries was in the form of optocouplers, which are notorious for being difficult to manage and operate at temperatures over 105°C,” said Robbie McAdam, vice president, Analog Semiconductor Components Division, Analog Devices. “In an application where fuel economy and battery capacity are everything, ADI’s digital isolators not only remove the limitations of optocouplers, they do so at 90 percent less power consumption.”
The two-channel ADuM120xW, three-channel ADuM130xW and four-channel ADuM140xW digital isolators are based on Analog Devices’ proprietary iCoupler chip-scale micro-transformer technology that has been used in more than 150 million channels of isolation shipped into a wide array of applications including industrial, medical, power supply, and consumer systems. These new automotive products provide multiple isolation channels in a variety of channel configurations and data rates up to 25 Mbps. The CMOS-based parts operate with the supply voltage on either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation across the isolation barrier.
Unlike alternative isolation technologies such as optocouplers, which suffer from performance degradation and wear out at high temperatures, iCoupler digital isolators are relatively insensitive to temperature and demonstrate excellent long-term reliability. Because iCoupler products have a digital interface, there is no need for external signal conditioning components, and they consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
The new digital isolators are available in 8-lead narrow-body or 16-lead wide-body SOIC (small-outline integrated circuit) packages.
“Until today, the only isolation available for hybrid car and truck batteries was in the form of optocouplers, which are notorious for being difficult to manage and operate at temperatures over 105°C,” said Robbie McAdam, vice president, Analog Semiconductor Components Division, Analog Devices. “In an application where fuel economy and battery capacity are everything, ADI’s digital isolators not only remove the limitations of optocouplers, they do so at 90 percent less power consumption.”
The two-channel ADuM120xW, three-channel ADuM130xW and four-channel ADuM140xW digital isolators are based on Analog Devices’ proprietary iCoupler chip-scale micro-transformer technology that has been used in more than 150 million channels of isolation shipped into a wide array of applications including industrial, medical, power supply, and consumer systems. These new automotive products provide multiple isolation channels in a variety of channel configurations and data rates up to 25 Mbps. The CMOS-based parts operate with the supply voltage on either side ranging from 3.0 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling voltage translation across the isolation barrier.
Unlike alternative isolation technologies such as optocouplers, which suffer from performance degradation and wear out at high temperatures, iCoupler digital isolators are relatively insensitive to temperature and demonstrate excellent long-term reliability. Because iCoupler products have a digital interface, there is no need for external signal conditioning components, and they consume one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
The new digital isolators are available in 8-lead narrow-body or 16-lead wide-body SOIC (small-outline integrated circuit) packages.
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