The new family of devices, which includes the Si8921, Si893x and Si894x, are intended to help shorten recharging times for EVs. This latest product line also addresses broader industry applications and delivers improvements for solar inverters and wireless charging.
“Built upon three generations of digital isolation technology, these solutions are engineered to be key enablers in the industry’s shift to vehicle electrification,” said Brian Mirkin, vice president and general manager of power products at Skyworks. “Skyworks is using its deep industry knowledge to support the infrastructure needed by the rapidly evolving EV industry. The Si89xx family is designed to provide an accurate, precise measurement of current and voltage, which allows for accelerated electric automotive charging.”
The steadily growing popularity of EVs amongst consumers has created a market approaching $400 billion according to data from Statista and the move to electrification has increased the demand for charging infrastructure and is driving more efficient and effective power transfer solutions for modern EVs.
Skyworks’ Si89xx products have been designed to provide accurate, precise measurement readings of the current and voltage involved in the operation of power control systems, including 75 kV/µs immunity to fast transients and accuracy over temperature. This minimises loss of power and inherently makes the system more efficient, allowing for charging devices to more swiftly transfer power.
This increased functionality enables charging improvements for the EV industry and industrial applications across different markets, including wireless infrastructure, data centres and wired communications.
As the telecommunications industry shifts toward standalone 5G networks and fixed wireless access, there is also an increased emphasis being placed on the importance of power management. Accurate current and voltage measurement in telecom power supply equipment results in increased efficiency and allows for detailed monitoring, resulting in reduced cost, less downtime and improved system management.
Samples of the Si8921, Si893x and Si894x devices are available now. Skyworks’ Si89xx family consists of the Si8921 isolated analogue amplifiers, the Si893x isolated voltage sensors and the Si8941/6/7 isolated DSM devices.
These devices are optimised for voltage or shunt-current sensing and provide typical offset error as low as ±40 µV and ±0.1% gain error.
In addition, offering a typical offset drift as low as ±0.5 µV/˚C and typical gain drift as low as –4 ppm/˚C, they allow for exceptional accuracy across temperature. As a result of these benefits, The Si89xx devices can offer one of the industry’s highest signal-to-noise ratios (SNR)—up to 90 dB.
These devices will enhance design flexibility with the following options:
- Current or voltage-optimised devices with single-ended, differential or DSM output
- ±62.5 mV, ±250 mV or 2.5 V input ranges
- A stretched wide-body SOIC-8 package to support 5 kVrms isolation and 8 mm creepage/clearance and a compact narrow-body SOIC-8 to support 2.5 kVrms isolation
