VIPER12ADIP-E STMicroelectronics Integrated Circuit (Dual-In-Line Packages) In Stock
STMicroelectronics VIPER12ADIP-E is a current-mode PWM flyback switching regulator controller in an 8-pin DIP package with 9 V to 38 V input voltage range. It integrates a high-voltage power MOSFET and protection circuits for compact offline and isolated DC/DC power supply designs. Available in stock worldwide with fast shipping.
- Manufacturer
- STMicroelectronics
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- VIPER12ADIP-E Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3184(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated high-voltage power MOSFET with current-mode PWM control for simple single-chip flyback power supply design
- Wide input voltage range of 9 V to 38 V enabling use in both offline auxiliary supplies and isolated DC/DC converters
- Comprehensive built-in protections including overcurrent, overtemperature, and soft-start for robust power supply reliability
Applications
VIPER12ADIP-E is optimized for low-power isolated flyback switch-mode power supplies generating auxiliary voltages in home appliances, industrial control units, and smart metering equipment. Its integrated MOSFET and current-mode PWM controller reduce external component count, enabling compact DIP-8 PCB designs with output powers up to approximately 3 W to 5 W from rectified mains or 12 V to 24 V DC bus inputs. Energy meters, HVAC controllers, and standby power adapters commonly use VIPER12ADIP-E for reliable isolated auxiliary rail generation.
Specifications
| Factory Lead Time | 14Weeks |
| YTEOL | 5 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 38V |
| Input Voltage-Min | 9V |
| Input Voltage-Nom | 18V |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Output Current-Max | 0.48A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Qualification Status | Not Qualified |
| Surface Mount | NO |
| Switcher Configuration | SINGLE |
| Switching Frequency-Max | 66kHz |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for VIPER12ADIP-E:
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Frequently Asked Questions
What is the input voltage range of VIPER12ADIP-E and what power topologies does it support?
VIPER12ADIP-E operates from 9 V to 38 V input voltage, making it suitable for flyback converter designs powered from rectified mains through a high-voltage capacitor, or from 12 V to 24 V DC bus rails in industrial systems. The current-mode PWM control architecture is optimized for discontinuous-conduction-mode flyback topologies delivering up to 5 W of isolated output power.
Does VIPER12ADIP-E include an internal power MOSFET, and how does this simplify the power supply design?
VIPER12ADIP-E integrates a high-voltage power MOSFET alongside the current-mode PWM controller in a single 8-pin DIP package. This eliminates the need for an external switching transistor, gate driver, and associated resistors, reducing the total PCB component count by 5 to 8 parts compared to discrete controller plus MOSFET designs and shrinking the required PCB area.
What built-in protection features does VIPER12ADIP-E provide for power supply reliability?
VIPER12ADIP-E includes integrated overcurrent protection with cycle-by-cycle current limiting that prevents MOSFET damage during output overload or short-circuit events, overtemperature shutdown to protect the IC and PCB at thermal extremes, and soft-start to limit inrush current at power-up. These protections allow designers to meet safety standards for appliance and industrial power supplies without external protection circuits.
For a smart energy meter auxiliary supply, what output power level can VIPER12ADIP-E deliver from a mains-rectified input?
VIPER12ADIP-E is rated for output power up to approximately 3 W to 5 W in a typical flyback topology with a well-designed transformer operating from 85 V to 265 V AC mains after rectification. A 3 W isolated auxiliary supply is sufficient to power the metering microcontroller, RTC, and communication module in a smart energy meter, meeting the low standby-power requirements of IEC metering standards.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.4910 | $0.49 |
| 4+ | $0.3278 | $1.31 |
| 8+ | $0.3231 | $2.58 |
| 16+ | $0.3184 | $5.09 |
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