In the realm of electric vehicles (EVs), the efficiency of onboard chargers is paramount. STMicroelectronics, a renowned leader in semiconductor solutions, addresses this demand with the introduction of their 40 A automotive SCR thyristors. These components are specifically designed to cater to the power factor conversion stage in EV chargers, ranging from 4 kW to 11 kW.
One of the key requirements for such applications is AEC-Q101 qualification, ensuring reliability and performance under the harsh conditions encountered in automotive environments. STMicroelectronics’ SCR40A thyristors meet this standard, offering peace of mind to manufacturers and consumers alike.
The standout feature of these thyristors lies in their ability to provide high-efficiency inrush current limitation. This is achieved through a combination of low VT (threshold voltage) and a high junction temperature rating of up to +150°C. Such characteristics make them ideal for use in totem pole power factor correction (PFC) or interleaved bridgeless PFC topologies, where minimizing losses and maximizing efficiency are paramount.
Moreover, the surge blocking voltage performance of 1,400 V ensures compatibility with 3-phase AC input systems, further enhancing their versatility in various charging infrastructure setups. This capability is particularly crucial as EV adoption continues to rise, necessitating charging solutions that can accommodate different grid configurations.
By integrating STMicroelectronics’ SCR40A thyristors into their designs, EV charger manufacturers can achieve not only compliance with automotive standards but also optimize the performance and efficiency of their products. With the electrification trend accelerating globally, such innovations play a vital role in shaping the future of sustainable transportation.
In conclusion, STMicroelectronics’ SCR40A automotive SCR thyristors represent a significant advancement in the realm of EV charging technology. With their high efficiency, reliability, and compatibility, they empower manufacturers to develop cutting-edge solutions that meet the evolving needs of the automotive industry.
1,200 V to 40 A SCR thyristor
High maximum junction temperature thyristor: +150°C
On-state voltage drop: VTM= 1.55 V at ITM = 80 A
Low off-state consumption: 5 µA max at 1,200 V, TJ = +25°C
Automotive-grade AEC-Q101 compliant and PPAP available
Onboard chargers
Voltage controlled rectifier bridges
Overvoltage protection
Solid-state relays up to 56 A
AC/DC inrush limiting bridges
Bypass relays
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