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Vishay launches multiple VRPower smart-power stages with temperature monitoring

By Michelle Froese March 15, 2021

Vishay Intertechnology, Inc. has introduced nine new 70 A, 80 A, and 100 A VRPower smart-power stages with integrated current and temperature monitoring in the thermally enhanced 5×6 mm PowerPAK MLP56-39 package.

Designed to reduce energy costs for data centers and other high-performance computing and 5G mobile infrastructure telecom applications, the Vishay Siliconix SiC8xx family of smart-power stages deliver high-energy efficiency and current-reporting accuracy.

The power stages combine power MOSFETs and an advanced driver IC. The devices’ high-energy efficiency is a result of their internal MOSFETs’ state of the art TrenchFET Gen IV technology, which offers an industry benchmark performance to significantly reduce switching and conduction losses.

The SiC8xx delivers a peak efficiency that’s above 93 percent in various application conditions. A diode emulation mode can be enabled at light loads for high efficiency over the full load range.

While solutions that monitor power consumption using inductor DCR sensing offer current reporting accuracy of 7 percent, the SiC8xx family uses a low-side MOSFET sensing for accuracy of < 3 percent.

This translates into better performance and improved thermal management for high-current processors and SoCs, such as those from Intel Corporation, Advanced Micro Devices, Inc., and Nvidia Corporation.

The devices are optimized for:

  • Synchronous buck converters
  • Multi-phase VRDs for CUPs
  • GPUs
  • Memory
  • DC/DC VR modules

The SiC8xx smart power stages offer a wide input range of 4.5 to 21 V (click here to view the table reference), and high-switching frequencies of up to 2 MHz.

Fault-protection features include high side MOSFET short and over-current alerts, over-temperature protection, and under-voltage lockout (UVLO). The SiC8xx family supports 3.3 V and 5 V PWM logic with tri-state for compatibility with a wide range of PWM controllers.

 


Filed Under: Components, News
Tagged With: vishaytechnology
 

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