| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| VIPER27LD | STMicroelectronics | $1.2899 | Switching Controller, Current-mode, 0.74A, 60kHz Switching Freq-Max, PDSO16 | VIPER27LN vs VIPER27LD |
| VIPER20SP | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, MOS, PDSO10 | VIPER27LN vs VIPER20SP |
| VIPER20A-E | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, MOS, PZFM5 | VIPER27LN vs VIPER20A-E |
| VIPER20 | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, MOS, PZFM5 | VIPER27LN vs VIPER20 |
| VIPER20(022Y) | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, MOS, PZFM5 | VIPER27LN vs VIPER20(022Y) |
| VIPER20DIP | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, MOS, PDIP8 | VIPER27LN vs VIPER20DIP |
| VIPER27LDTR | STMicroelectronics | Check for Price | Switching Controller, Current-mode, 0.74A, 60kHz Switching Freq-Max, PDSO16 | VIPER27LN vs VIPER27LDTR |
| VIPER20ASP-E13TR | STMicroelectronics | Check for Price | Switching Regulator, Current-mode, 0.9A, 200kHz Switching Freq-Max, PDSO10 | VIPER27LN vs VIPER20ASP-E13TR |
Part Details for VIPER27LN by STMicroelectronics
Results Overview of VIPER27LN by STMicroelectronics
- Distributor Offerings: (10 listings)
- Number of FFF Equivalents: (0 replacements)
- Tariff Estimator: (Available) NEW
- Number of Functional Equivalents: (8 options)
- CAD Models: (Available)
- Part Data Attributes: (Available)
- Reference Designs: (Not Available)
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.
VIPER27LN Information
VIPER27LN 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 VIPER27LN
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
497-8390-5-ND
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DigiKey | IC OFFLINE SWITCH FLYBACK 7DIP Min Qty: 1 Container: Tube |
0 Tube |
|
$0.5711 / $1.2100 | Buy Now |
|
DISTI #
511-VIPER27LN
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Mouser Electronics | AC/DC Converters VIPerPlus family: Fixed frequency 12W high performance off line high voltage converter RoHS: Compliant | 155 |
|
$0.5720 / $1.2400 | Buy Now |
|
DISTI #
70520839
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RS | CONVERTER, HI-VOLT CONVERTER W/ 800V RUGGED OFF-LINE Min Qty: 5 Package Multiple: 1 Container: Bulk | 0 |
|
$1.5700 / $1.7900 | RFQ |
|
|
STMicroelectronics | VIPerPlus family: Fixed frequency 12W high performance off line high voltage converter COO: Italy Min Qty: 1 | 162 |
|
$0.6300 / $1.2400 | Buy Now |
|
|
Bristol Electronics | AC to DC Switching Converter Flyback 60kHz Tube 7-Pin PDIP Min Qty: 1 | 640 |
|
$0.4200 / $1.5000 | Buy Now |
|
|
Quest Components | SWITCHING CONTROLLER, CURRENT-MODE, 0.74A, 60KHZ SWITCHING FREQ-MAX, PDIP7 | 512 |
|
$0.5200 / $2.0000 | Buy Now |
|
|
Quest Components | SWITCHING CONTROLLER, CURRENT-MODE, 0.74A, 60KHZ SWITCHING FREQ-MAX, PDIP7 | 75 |
|
$0.5775 / $1.2375 | Buy Now |
|
DISTI #
VIPER27LN
|
TME | IC: driver, flyback, PWM controller, DIP7, 3A, 800V, Ch: 1, 54÷66kHz Min Qty: 1 | 89 |
|
$0.7400 / $1.0700 | Buy Now |
|
|
ComSIT USA | Switching Controller, Current-mode, 0.74A, 60kHz Switching Freq-Max, PDIP7 ECCN: EAR99 RoHS: Not Compliant |
|
|
RFQ | |
|
|
Win Source Electronics | IC OFFLINE CONV PWM OVP 7DIP | 65000 |
|
$4.6591 / $5.9849 | Buy Now |
US Tariff Estimator: VIPER27LN by STMicroelectronics
Calculations from this tool are estimations only for imports into the United States. Please refer to the distributor or manufacturer and reference official US government sources and authorities to verify any final purchase costs.
VIPER27LN CAD Models
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VIPER27LN Part Data Attributes
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VIPER27LN
STMicroelectronics
Buy Now
Datasheet
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Compare Parts:
VIPER27LN
STMicroelectronics
Switching Controller, Current-mode, 0.74A, 60kHz Switching Freq-Max, PDIP7
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| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Part Package Code | DIP | |
| Package Description | Rohs Compliant, Dip-8/7 | |
| Pin Count | 7 | |
| ECCN Code | EAR99 | |
| HTS Code | 8542.39.00.60 | |
| Factory Lead Time | 18 Weeks | |
| Analog IC - Other Type | Switching Controller | |
| Control Mode | Current-Mode | |
| Control Technique | Pulse Width Modulation | |
| Input Voltage-Max | 23.5 V | |
| Input Voltage-Min | 8.5 V | |
| Input Voltage-Nom | 14 V | |
| JESD-30 Code | R-PDIP-T7 | |
| JESD-609 Code | e3 | |
| Length | 9.27 Mm | |
| Number of Functions | 1 | |
| Number of Terminals | 7 | |
| Operating Temperature-Max | 150 °C | |
| Operating Temperature-Min | -40 °C | |
| Output Current-Max | 0.74 A | |
| Package Body Material | Plastic/Epoxy | |
| Package Code | DIP | |
| Package Equivalence Code | DIP7/8,.3 | |
| Package Shape | Rectangular | |
| Package Style | In-Line | |
| Peak Reflow Temperature (Cel) | Not Specified | |
| Qualification Status | Not Qualified | |
| Seated Height-Max | 5.33 Mm | |
| Surface Mount | No | |
| Switcher Configuration | Single | |
| Switching Frequency-Max | 60 Khz | |
| Terminal Finish | Matte Tin (Sn) - Annealed | |
| Terminal Form | Through-Hole | |
| Terminal Pitch | 2.54 Mm | |
| Terminal Position | Dual | |
| Time@Peak Reflow Temperature-Max (s) | Not Specified | |
| Width | 7.62 Mm |
Alternate Parts for VIPER27LN
This table gives cross-reference parts and alternative options found for VIPER27LN. 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 VIPER27LN, 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.
VIPER27LN Frequently Asked Questions (FAQ)
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STMicroelectronics recommends a 4-layer PCB with a solid ground plane, and to keep the high-frequency components (e.g. transformer, diodes) close to the IC. A good layout should also ensure that the input and output stages are separated to minimize coupling.
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The transformer should be designed to operate at the switching frequency of the VIPER27LN (typically 60-100 kHz). The transformer's turns ratio, inductance, and core material should be selected based on the input and output voltage requirements, and the desired power rating.
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The maximum allowed voltage on the VIN pin is 30V, but it's recommended to keep it below 28V to ensure reliable operation and to prevent damage to the internal voltage regulator.
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The VIPER27LN's SOA is defined by its maximum current, voltage, and power ratings. Ensure that the input voltage, output current, and power dissipation are within the recommended limits. Also, monitor the IC's temperature and adjust the design accordingly to prevent overheating.
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The VCC pin is the power supply pin for the internal voltage regulator. It should be connected to a stable voltage source (e.g. a capacitor-filtered output of the switching converter) to ensure proper operation of the IC.