The number of electric vehicles is increasing rapidly, and Skyworks offers industry leading automotive isolation solutions for on-board chargers, battery management systems, charging stations, and traction control and inverters.
Battery Management Systems (BMS)
BMS are used to monitor and control power storage systems, assure health of battery cells, and deliver power to vehicle systems. Isolation products have numerous uses inside BMS in the electrical domains of EVs or Hybrid Electric Vehicles.
| Family | Purpose | Family | Purpose |
| Si86xx | System Communication | Si893x | Amplifier for Current Shunt Measurement* |
| Si88xx | Communication with power transfer | Si894x | Delta-Sigma Modulator for Current Shunt Measurement* |
| Si892x | Amplifier for Voltage Measurement |
On Board Chargers (OBC)
The on-board charger (OBC) system is responsible for converting a standard ac charging source into a dc voltage used to charge the battery pack in the vehicle in addition to other key functions including voltage monitoring and protection.
| Family | Purpose | Family | Purpose |
| Si86xx | System Communication | Si8239x | FET driver with enhanced safety features |
| Si88xx | Communication with power transfer | Si823Hx | FET driver with 4A drive strength and high CMTI |
| Si823x | FET driver in switch & sync blocks | Si827x | High CMTI Driver for SiC and GaN FETs in sync FET block |
| Si8931 | Voltage measurement amplifier* | Si892x/4x | Current shunt sense amplifiers with digital or analog output |
DC-DC Converters
DC-DC converters are used to convert dc voltages from one voltage domain to another for powering various auxiliary systems. These functions require galvanic isolation to separate control systems from high-voltage domains.
| Family | Purpose | Family | Purpose |
| Si86xx | System Communication | Si8239x | FET driver with enhanced safety features |
| Si88xx | Communication with power transfer | Si823Hx | FET driver with 4A drive strength and high CMTI |
| Si823x | FET driver in switch & sync blocks | Si827x | High CMTI Driver for SiC and GaN FETs in sync FET block |
| Si828x | IGBT driver with integrated dc-dc | Si8931 | Isolated Voltage Sensor* |
Traction Inverters
Traction inverters are used to convert stored dc high voltage from a battery or dc bus link into multi-phase ac power for driving a traction motor. In addition, traction inverters perform functions such as voltage boosting, switch protection, and regenerative braking support. All these functions require galvanic isolation to separate control systems from high voltage domains.
| Family | Purpose | Family | Purpose |
| Si86xx | System Communication | Si8239x | FET driver with enhanced safety features |
| Si88xx | Communication with power transfer | Si823Hx | FET driver with 4A drive strength and high CMTI |
| Si823x | FET driver in switch & sync blocks | Si827x | High CMTI Driver for SiC and GaN FETs in sync FET block |
| Si828x | IGBT driver with Inverted Block | Si826x | MOSFET/Sic FET driver with diode input |
*Currently sampling. Please contact your Arrow sales representative.
View Skyworks' full isolation line here.