1.5 W double output buck demonstration board based on the VIPER16LD

The STEVAL-ISA119V1 is a dual output buck demonstration board using the VIPER16LD, a new off-line high voltage converter by STMicroelectronics which has been specifically developed for non-isolated SMPS.

Output regulation is easily achieved through a voltage divider to the output voltage.

The VIPER16LD can work with or without an external supply. In the former case, very low standby consumption is possible(< 50 mW at 265 Vac) while in the latter case, the cost and complication of the IC supply network may be reduced.

The other features of the device include an 800 V avalanche-rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, limiting current with adjustable set point, on-board soft-start and safe auto-restart after a fault condition.

The available protection features are thermal shutdown with hysteresis and delayed overload protection.

Key Features

  • Input voltage range (VIN ): 90 VRMS to 265 VRMS
  • Output voltage 1 (VOUT1 )= 12 V
  • Max output current 1: (IOUT1 ) = 0.1 A
  • Output voltage 2: (VOUT2 ) = 5 V (through LDO)
  • Max output current 2: (IOUT2 )= 0.05 A
  • Precision of output regulation ΔVOUT_LF = ±5%
  • High frequency output voltage ripple ΔVOUT_HF = 50 mV
  • Max ambient operating temperature TA = 60 °C

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设计

技术文档

产品规格
Description Version Size
DB1933 DB1933: 1.5 W double output buck demonstration board based on the VIPER16LD 1.0 167 KB
应用手册
Description Version Size
AN4345 AN4345: STEVAL-ISA119V1: 1.5 W double output buck product evaluation board based on the VIPER16LD 1.0 2 MB

硬件资源

Board Manufacturing Specifications
Description Version Size
STEVAL-ISA119V1 gerber files 1.0 311 KB
Bill of Materials
Description Version Size
STEVAL-ISA119V1 BOM 1.0 9 KB
Schematic Packs
Description Version Size
STEVAL-ISA119V1 schematics 1.0 54 KB

法律

许可协议
Description Version Size
Evaluation products license agreement 1.0 125 KB
支持和社区
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样片和购买

型号 Core Product Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-ISA119V1 VIPER16H Active 56.35 1 NEC EAR99 ITALY MORE INFO 直接购买 Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-ISA119V1 ActiveCARDIndustrialEcopack2
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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