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Product Detailed Parameters
- Description：POWER CONVERSION
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- Output Isolation：-
- Internal Switch(s)：-
- Voltage - Breakdown：-
- Topology：-
- Voltage - Start Up：-
- Voltage - Supply (Vcc/Vdd)：-
- Duty Cycle：-
- Frequency - Switching：-
- Fault Protection：-
- Control Features：-
- Operating Temperature：-
- Package / Case：-
- Supplier Device Package：-
- Mounting Type：-
- Grade：-
- Qualification：-
- Power (Watts)：-
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Overview
The VIPERP4QR8STR is an AC-DC controller from STMicroelectronics, part of the VIPerPlus family. It integrates a high-voltage 800V power MOSFET with a current-mode control circuit for off-line flyback converters. The device operates from a wide supply voltage range and includes built-in protections such as overvoltage lockout, thermal shutdown, and cycle-by-cycle current limiting. It is designed for low standby power consumption in universal input applications.
Feature Summary
- Integrates a high-voltage 800V power MOSFET with a current-mode controller
- Includes comprehensive protection features like thermal shutdown and overvoltage lockout
- Optimized for low standby power consumption in off-line applications
Applications
- Universal input off-line flyback converters
- Low power adapter supplies
- Standby power supplies for consumer electronics
Procurement Notes
Verify the specific suffix 'R8STR' corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the 800V rating aligns with your primary side voltage stress calculations. Ensure compatibility with SO12 HV package dimensions during PCB layout. Check for RoHS compliance documentation if required by your regional regulations.
Selection Notes
Select this component when designing cost-effective, high-density power supplies requiring integrated high-voltage switching. It is suitable for applications where minimizing external component count and reducing standby power are critical design constraints. Consider the thermal performance of the SO12 package under maximum load conditions.
Part Context
This part belongs to the VIPerPlus series, which combines a high-voltage power switch with a smart digital controller. The series is known for simplifying design through integration, reducing bill-of-materials, and improving reliability by minimizing external passive components typically needed in discrete flyback designs.
Replacement Considerations
Check for direct pin-compatible alternatives within the VIPerPlus family, such as the VIPER53 or VIPER27, depending on power level requirements. Verify that any substitute maintains the 800V breakdown voltage and similar control logic features.
