VIPER17HD STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
VIPER17HD is a PWM switching regulator IC from STMicroelectronics in a 16-pin SOP package for offline and isolated power supplies. It supports input voltages from 8.5 V to 23.5 V and uses combined current and voltage-mode control for stable regulation. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- VIPER17HD Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9516(MOQ 1)
- Temp Range
- -40.0°C to 150.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Combined current/voltage-mode PWM control for precise output regulation in isolated converter topologies
- Wide input voltage range of 8.5 V to 23.5 V covers universal AC-DC offline power supply designs
- Integrated protections in a 16-pin SOP package simplify PCB layout for compact power modules
Applications
VIPER17HD is designed for offline flyback and forward converter power supplies used in industrial equipment, home appliances, and smart metering systems. Its current-mode PWM architecture ensures fast transient response and cycle-by-cycle current limiting, making it a reliable choice for auxiliary power rails in motor drives and HVAC controllers. The SOP-16 package supports automated assembly and fits standard PCB footprints for cost-effective manufacturing.
Specifications
| Factory Lead Time | 18Weeks |
| YTEOL | 6 |
| Analog IC - Other Type | SWITCHING REGULATOR |
| Control Mode | CURRENT/VOLTAGE-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 23.5V |
| Input Voltage-Min | 8.5V |
| Input Voltage-Nom | 10V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.42A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 127kHz |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for VIPER17HD:
Switching Regulator, Current/voltage-mode, 0.42A, 127kHz Switching Freq-Max, PDSO16
Frequently Asked Questions
What input voltage range does VIPER17HD support in an offline AC-DC power supply?
VIPER17HD operates with input voltages from 8.5 V minimum to 23.5 V maximum, with a nominal design point of 10 V. This range suits post-rectifier rails in low-voltage offline supplies and isolated auxiliary converters in industrial equipment, where the rectified bus voltage can vary significantly with line regulation requirements.
How does the current-mode PWM control in VIPER17HD improve transient response compared to voltage-mode-only regulators?
Current-mode control senses the switch current cycle-by-cycle, providing an inner current feedback loop that inherently limits peak inductor current and speeds up response to load steps. In VIPER17HD this means the output voltage recovers from a 50% load step in fewer switching cycles than a voltage-mode-only design, reducing output capacitor requirements and total solution size.
Which protection features are integrated in VIPER17HD to safeguard the power supply under fault conditions?
VIPER17HD includes cycle-by-cycle current limiting, overvoltage protection, and thermal shutdown, all built into the 16-pin SOP-16 package without external components. These protections prevent switch damage during short-circuit or overload events across the operating temperature range, reducing the risk of field failures in unattended industrial installations where a replacement cycle can take 18 weeks due to lead times.
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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+ | $0.9864 | $0.99 |
| 8000+ | $0.9688 | $7750.80 |
| 16000+ | $0.9516 | $15224.80 |
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