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Product Detailed Parameters
- Description：IC OFFLINE SWITCH MULT TOP 16SO
- Series：VIPER™
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Isolation：Either
- Internal Switch(s)：Yes
- Voltage - Breakdown：1050V
- Topology：Buck, Boost, Buck-Boost, Flyback
- Voltage - Start Up：13 V
- Voltage - Supply (Vcc/Vdd)：11.5V ~ 23.5V
- Duty Cycle：80%
- Frequency - Switching：60kHz
- Fault Protection：Current Limiting, Over Load, Short Circuit
- Control Features：EN, Soft Start
- Operating Temperature：-40°C ~ 150°C (TJ)
- Package / Case：16-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：16-SO
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Power (Watts)：20 W
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Overview
The VIPER267KDTR is an offline high-voltage converter from STMicroelectronics, integrating a 1050 V avalanche-rugged power MOSFET with PWM current mode control. It operates at a switching frequency of 60 kHz and supports Buck, Buck-Boost, and Flyback topologies. The device features a fixed 700 mA current limit, soft-start, and safe auto-restart after fault conditions. Input voltage ranges from 11.5 V to 23.5 V, with a maximum output voltage capability of 1.05 kV. It is housed in a 16-SOIC package and functions within a temperature range of -40°C to +150°C.
Feature Summary
- Integrates a 1050 V avalanche-rugged power section for robust operation under high voltage stress.
- Includes PWM operation at 60 kHz with frequency jittering to minimize electromagnetic interference.
- Features built-in protections including overload, short-circuit handling, and safe auto-restart mechanisms.
Applications
- STCOMET smart meter systems
- Powerline communication (PLC) systems
- Isolated flyback converters for analog and digital circuitry
Procurement Notes
Verify the specific suffix 'KDTR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 16-SOIC package dimensions align with the target PCB footprint. Ensure compliance with RoHS directives and check moisture sensitivity levels for storage and reflow soldering requirements before procurement.
Selection Notes
Select this component when designing isolated power supplies requiring high voltage withstand capabilities up to 1050 V. It is suitable for applications needing integrated protection against overloads and short circuits without external complex circuitry. Consider its 60 kHz jittered frequency for EMI-sensitive environments where reduced filtering costs are beneficial.
Part Context
This part belongs to the VIPER26K series of high-voltage converters. Unlike the standard VIPER26 which integrates an 800 V MOSFET, the VIPER267 variant specifically upgrades the breakdown voltage to 1050 V. This enhancement allows for extended input voltage ranges and reduced snubber circuit sizes in high-voltage AC/DC conversion designs.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official STMicroelectronics resources for cross-reference data or equivalent components within the VIPER26K family.
