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Power Circuits / Switching Regulator or Controllers / VIPER22ASTR-E
Datasheets
VIPER22ASTR-E by: STMicroelectronics

Fixed frequency off line converter

Part Details for VIPER22ASTR-E by STMicroelectronics

Results Overview of VIPER22ASTR-E by STMicroelectronics

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Consumer Electronics Energy and Power Systems Transportation and Logistics Renewable Energy Automotive

VIPER22ASTR-E Information

VIPER22ASTR-E by STMicroelectronics is a Switching Regulator or Controller.
Switching Regulator or Controllers are under the broader part category of Power Circuits.

A power circuit delivers electricity in order to operate a load for an electronic device. Power circuits include transformers, generators and switches. Read more about Power Circuits on our Power Circuits part category page.

Price & Stock for VIPER22ASTR-E

Part # Distributor Description Stock Price Buy
DISTI # 45AC7938
Newark Ac/Dc Conv, Soic-8, Input Voltage Min:85Vac, Input Voltage Max:265Vac, Ic Case/Package:Soic, No.... Of Pins:8Pins, Power Rating Max:7W, Topology:Buck, Buck-Boost, Isolation:Isolated, Power Switch Voltage Rating:730V, Qualification:- Rohs Compliant: Yes |Stmicroelectronics VIPER22ASTR-E more RoHS: Compliant Min Qty: 2500 Package Multiple: 1 Date Code: 0 Container: Cut Tape 0
Buy Now
DISTI # 497-8167-1-ND
DigiKey IC OFFLINE SWITCH FLYBACK 8SOIC Min Qty: 1 Lead time: 14 Weeks Container: Tape & Reel (TR), Digi-Reel®, Cut Tape (CT) 2943
In Stock
  • 1 $1.2800
  • 10 $0.9280
  • 25 $0.8408
  • 100 $0.7442
  • 250 $0.6982
  • 500 $0.6704
  • 1,000 $0.6476
  • 2,500 $0.6235
  • 5,000 $0.6089
  • 7,500 $0.6017
  • 12,500 $0.5936
$0.5936 / $1.2800 Buy Now
DISTI # VIPER22ASTR-E
Avnet Americas Primary Switch 8-Pin SO N T/R - Tape and Reel (Alt: VIPER22ASTR-E) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 14 Weeks, 0 Days Container: Reel 0
  • 2,500 $0.5618
  • 5,000 $0.5582
  • 10,000 $0.5479
  • 15,000 $0.5379
  • 20,000 $0.5283
$0.5283 / $0.5618 Buy Now
DISTI # 511-VIPER22ASTR-E
Mouser Electronics AC/DC Converters Lo Pwr Offline SMPS Primary Switcher RoHS: Compliant 3200
  • 1 $1.2800
  • 10 $0.9280
  • 25 $0.8410
  • 100 $0.7450
  • 250 $0.6990
  • 500 $0.6710
  • 1,000 $0.6240
  • 2,500 $0.6010
  • 7,500 $0.5760
$0.5760 / $1.2800 Buy Now
STMicroelectronics Fixed frequency off line converter RoHS: Compliant Min Qty: 1 2800
  • 1 $1.2500
  • 10 $0.9100
  • 25 $0.8200
  • 100 $0.7300
  • 250 $0.6900
  • 500 $0.6600
$0.6600 / $1.2500 Buy Now
Future Electronics VIPER22 Series 38 V Low Power Off Line SMPS Primary Switcher - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 14 Weeks Container: Reel 0
Reel
  • 2,500 $0.5800
  • 5,000 $0.5700
$0.5700 / $0.5800 Buy Now
Future Electronics VIPER22 Series 38 V Low Power Off Line SMPS Primary Switcher - SOIC-8 RoHS: Compliant pbFree: Yes Min Qty: 2500 Package Multiple: 2500 Lead time: 14 Weeks Container: Reel 0
Reel
  • 2,500 $0.5800
  • 5,000 $0.5700
$0.5700 / $0.5800 Buy Now
Bristol Electronics   9391
RFQ
DISTI # VIPER22ASTR-E
TME IC: driver, flyback, PWM controller, SO8, 0.7A, 730V, Ch: 1, 7÷38VDC Min Qty: 1 0
  • 1 $2.0000
  • 5 $1.7600
  • 25 $1.4400
  • 100 $1.2900
  • 250 $1.0900
  • 1,000 $1.0000
$1.0000 / $2.0000 RFQ
DISTI # SMC-VIPER22ASTR-E
Sensible Micro Corporation AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days 16661
RFQ
DISTI # VIPER22ASTR-E
Avnet Silica Primary Switch 8Pin SO N TR (Alt: VIPER22ASTR-E) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 15 Weeks, 0 Days Silica - 220000
Buy Now
DISTI # VIPER22ASTR-E
EBV Elektronik Primary Switch 8Pin SO N TR (Alt: VIPER22ASTR-E) RoHS: Compliant Min Qty: 2500 Package Multiple: 2500 Lead time: 15 Weeks, 0 Days EBV - 12500
Buy Now
Vyrian Other Function Semiconductors 37877
RFQ
Win Source Electronics IC OFFLINE SWIT PWM SMPS 8SOIC 59854
  • 170 $0.3013
  • 355 $0.2819
  • 555 $0.2722
  • 795 $0.2528
  • 1,030 $0.2430
  • 1,290 $0.2333
$0.2333 / $0.3013 Buy Now

Part Details for VIPER22ASTR-E

VIPER22ASTR-E CAD Models

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VIPER22ASTR-E Part Data Attributes

Parametric Data
VIPER22ASTR-E STMicroelectronics
Buy Now Datasheet
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VIPER22ASTR-E STMicroelectronics Fixed frequency off line converter
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Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code SOIC
Pin Count 8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 14 Weeks
Samacsys Manufacturer STMicroelectronics
Analog IC - Other Type SWITCHING CONTROLLER
Control Mode CURRENT-MODE
Control Technique PULSE WIDTH MODULATION
Input Voltage-Max 38 V
Input Voltage-Min 9 V
Input Voltage-Nom 18 V
JESD-30 Code R-PDSO-G8
JESD-609 Code e4
Length 4.9 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 8
Output Current-Max 0.84 A
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.25
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.75 mm
Surface Mount YES
Switcher Configuration SINGLE
Switching Frequency-Max 66 kHz
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 3.9 mm

Alternate Parts for VIPER22ASTR-E

This table gives cross-reference parts and alternative options found for VIPER22ASTR-E. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of VIPER22ASTR-E, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
TNY266PN Power Integrations $1.0127 Switching Regulator, Current-mode, 0.56A, 140kHz Switching Freq-Max, PDIP7, 0.300 INCH, LEAD FREE, PLASTIC, MS-001-AB, DIP-8 VIPER22ASTR-E vs TNY266PN
TOP224YN Power Integrations $2.4576 Switching Regulator, Voltage-mode, 1.65A, 110kHz Switching Freq-Max, CMOS, PSFM3, TO-220, 3 PIN VIPER22ASTR-E vs TOP224YN
TOP224PN Power Integrations $2.5397 Switching Regulator, Voltage-mode, 1.65A, 110kHz Switching Freq-Max, CMOS, PDIP8, DIP-8 VIPER22ASTR-E vs TOP224PN
TOP222PN Power Integrations $1.9672 Switching Regulator, Voltage-mode, 0.55A, 110kHz Switching Freq-Max, CMOS, PDIP8, DIP-8 VIPER22ASTR-E vs TOP222PN
TNY265PN Power Integrations $1.2791 Switching Regulator, Current-mode, 0.44A, 140kHz Switching Freq-Max, PDIP7, 0.300 INCH, LEAD FREE, PLASTIC, MS-001-AB, DIP-8 VIPER22ASTR-E vs TNY265PN
TNY254PN Power Integrations $1.1534 Switching Regulator, 0.4A, 48kHz Switching Freq-Max, PDIP8, 0.300 INCH, PLASTIC, DIP-8 VIPER22ASTR-E vs TNY254PN
TNY263PN Power Integrations Check for Price Switching Regulator, Current-mode, 0.4A, 140kHz Switching Freq-Max, PDIP7, 0.300 INCH, LEAD FREE, PLASTIC, MS-001-AB, DIP-8 VIPER22ASTR-E vs TNY263PN

VIPER22ASTR-E Related Parts

VIPER22ASTR-E Frequently Asked Questions (FAQ)

  • STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and a separate layer for the high-voltage traces to minimize electromagnetic interference (EMI).

  • To ensure reliable start-up, ensure that the input voltage (VIN) is within the recommended range, and the output capacitor (COUT) is properly sized to handle the output voltage ripple. Also, ensure that the feedback resistors (RFB1 and RFB2) are correctly sized to set the output voltage.

  • The maximum allowed output current of the VIPER22ASTR-E is 2A, but it can be limited by the thermal performance of the package and the PCB design. It's recommended to derate the output current based on the ambient temperature and the thermal design of the system.

  • To protect the VIPER22ASTR-E from overvoltage and undervoltage conditions, use a voltage supervisor or a reset IC to monitor the input voltage and shut down the device if it exceeds the recommended range. Additionally, consider using a TVS diode or a zener diode to clamp the input voltage.

  • The recommended input capacitor value for the VIPER22ASTR-E is 10uF to 22uF, with a voltage rating of at least 50V. The capacitor should be placed as close as possible to the VIN pin to minimize noise and ripple.