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Product Detailed Parameters
- Description：IC OFFLINE SWITCH MULT TOP 16SO
- Series：VIPer™ plus
- Mfr：STMicroelectronics
- Package：Tube
- Output Isolation：Either
- Internal Switch(s)：Yes
- Voltage - Breakdown：800V
- Topology：Buck, Buck-Boost, Flyback
- Voltage - Start Up：13 V
- Voltage - Supply (Vcc/Vdd)：11.5V ~ 23.5V
- Duty Cycle：70%
- Frequency - Switching：60kHz
- Fault Protection：Current Limiting, Over Temperature
- Control Features：-
- 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)：10 W
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Overview
The VIPER16LD is an offline converter from the VIPerPlus family, designed for non-isolated SMPS applications. It integrates an 800 V avalanche-rugged power section with a PWM controller operating at a fixed frequency of 60 kHz. The device supports buck and flyback topologies and features a maximum duty cycle of 70%. It operates within a supply voltage range of 11.5 V to 23.5 V, with a startup voltage of 13 V. The component delivers up to 10 W of power and includes protection against overcurrent and overheating.
Feature Summary
- Integrates an 800 V avalanche-rugged power section capable of direct self-supply from the rectified mains without auxiliary windings.
- Features PWM operation with frequency jittering to reduce electromagnetic interference filter costs.
- Includes hysteretic thermal shutdown and safe auto-restart mechanisms following fault conditions.
Applications
- Non-isolated AC-DC converters
- Buck topology power supplies
- Flyback topology power supplies
Procurement Notes
Verify the specific package variant (SOIC-16) and ensure compatibility with non-isolated circuit designs. Confirm that the 800 V breakdown rating meets the input voltage requirements of the target application. Check for any recent product change notices regarding assembly sites or material composition updates before finalizing procurement.
Selection Notes
Select this component for low-power applications requiring high-voltage tolerance and simplified bias networks. It is suitable where standby power consumption must be minimized through burst mode operation. Ensure the design accommodates the 60 kHz switching frequency and utilizes the internal soft-start feature for reliable initialization under varying load conditions.
Part Context
The VIPER16LD belongs to the VIPerPlus series, which focuses on energy-saving solutions for high-voltage converters. This series eliminates the need for auxiliary bias windings in low-power scenarios, reducing system complexity and cost. The device is part of STMicroelectronics' portfolio aimed at meeting stringent energy efficiency regulations for home appliances and metering equipment.
Replacement Considerations
The VIPER16LN serves as a pin-compatible alternative in a DIP-8 package. Verify that the package difference does not impact the PCB layout constraints of the existing design.
