Engineers often select a viper22a equivalent ic to replace the viper22a in AC-DC and SMPS power supply designs. The top 7 options include VIPER12A, AP8012, LNK364PN, TNY280PN, VIPER22A-E, LD7575PS, and OB2269CP. Each of these alternatives offers robust protection features, high-voltage support, and efficient switching. The following table highlights key specifications that contribute to their reliability and performance:
| Parameter | Value/Specification | Relevance to Reliability and Performance |
|---|---|---|
| Drain-Source Voltage (MOSFET) | 730 V | Supports high-voltage applications, ensuring robustness |
| Off-State Drain Current | 0.1 mA | Minimizes power loss during idle, enhancing durability |
| Rise Time | 50 ns | Enables fast switching, improving efficiency and response |
| Fall Time | 100 ns | Ensures quick turn-off, reducing switching losses |
| Operating Voltage Range | 9 V to 38 V | Provides flexibility in various power supply designs |
| PWM Frequency | Fixed at 60 kHz | Balances efficiency and noise control in switching operations |
| Protection Features | OLP, OVP, UVLO | Enhances safety and reliability by preventing faults |
| Packaging | PDIP and SO 8-pin | Supports thermal management and design adaptability |
When choosing a viper22a equivalent ic, designers should review pin compatibility, voltage range, and current capability to ensure reliable operation in their specific application.
Key Takeaways
-
VIPER22A is a compact, efficient power supply controller with built-in high-voltage MOSFET and protection features, ideal for AC-DC converters and SMPS designs.
-
Several equivalent ICs like VIPER12A, AP8012, and LNK364PN offer similar functions but differ in power capacity, switching frequency, and protection, so check datasheets carefully.
-
Pin compatibility and matching voltage and current ratings are crucial when replacing VIPER22A to ensure reliable and safe operation without redesigning the circuit.
-
VIPER22A and its equivalents support a wide range of applications including LED drivers, battery chargers, and industrial power supplies, helping meet energy efficiency standards.
-
Reviewing key specifications such as input voltage range, switching frequency, and protection features helps engineers select the best IC for their specific power supply needs.
Top 7 VIPER22A Equivalent ICs
VIPER12A
VIPER12A offers a compact solution for low-power switch-mode power supplies. It integrates a high-voltage startup circuit and a PWM controller. Designers often choose VIPER12A as a viper22a equivalent ic for applications that require lower output power. The device supports similar protection features and operates efficiently in flyback converter topologies. Its pinout closely matches the viper22a, which simplifies replacement in many designs.
AP8012
AP8012 provides a cost-effective alternative for small AC-DC converters. It features a built-in high-voltage MOSFET and advanced protection circuits. AP8012 works well in charger circuits and auxiliary power supplies. Its low standby power consumption makes it suitable for energy-saving designs. While it shares many characteristics with viper22a, AP8012 typically handles lower maximum output power.
LNK364PN
LNK364PN comes from the LinkSwitch-II family. It integrates a 725V power MOSFET and a controller in a single package. LNK364PN supports higher efficiency and lower standby losses compared to viper22a. Many engineers select this IC for compact adapters and standby power supplies. Its robust protection features and wide input voltage range make it a strong candidate as a viper22a equivalent ic.
TNY280PN
TNY280PN belongs to the TinySwitch-III series. It combines a high-voltage power MOSFET with a controller. TNY280PN delivers reliable performance in low-power SMPS applications. It offers enhanced protection, including over-temperature and over-voltage safeguards. The IC operates at a fixed frequency, similar to viper22a, and supports direct replacement in many circuits.
VIPER22A-E
VIPER22A-E represents an enhanced version of the original viper22a. It maintains the same core features but adds improved efficiency and better EMI performance. The device remains pin-compatible with viper22a, which allows for seamless upgrades in existing designs. VIPER22A-E suits a wide range of AC-DC converter applications, including chargers and small appliances.
LD7575PS
LD7575PS targets green-mode power supply designs. It integrates a high-voltage startup circuit and advanced protection mechanisms. LD7575PS reduces standby power consumption, which helps meet modern energy standards. The IC supports similar switching frequencies and output power levels as viper22a. Its compact package and reliable operation make it a popular choice for replacing viper22a in new designs.
OB2269CP
OB2269CP offers a high-performance solution for off-line flyback converters. It features a built-in high-voltage MOSFET and comprehensive protection functions. OB2269CP operates efficiently in both low and medium power applications. Its design supports low standby power and high reliability. Many engineers use OB2269CP as a direct replacement for viper22a in consumer electronics and industrial power supplies.
Tip: Always compare the datasheets of these alternatives to ensure compatibility with your specific circuit requirements.
VIPER22A Equivalent IC Comparison
Key Specifications Table
When engineers compare viper22a with its equivalent ICs, they focus on several important specifications. These include input voltage range, current limit, bias current, and switching frequency. The table below summarizes these specifications for viper22a. This information helps designers understand how each IC performs in different power supply circuits.
| Parameter | Value/Range | Notes/Context |
|---|---|---|
| Input Voltage Range | 7 V to 27.5 V | Operating voltage range of viper22a |
| Current Limit Trigger | 1.5 A | Set by resistor and PFET on-resistance |
| No-load Bias Current | < 500 µA | Low quiescent current for efficiency |
| Switching Frequency | 600 to 700 kHz | Varies over VIN range 5 to 15 V |
| LED Driving Capability | 2 to 8 LEDs (1W each) | Constant-current LED driver configuration |
| Sense Resistor Voltage | 0.175 V | Feedback reference voltage for current control |
These specifications show that viper22a supports a wide voltage range and can handle moderate current levels. The low bias current improves efficiency, especially in standby mode.
Main Differences
Viper22a and its equivalents share many core features, but some differences affect their suitability for specific applications. The input voltage range for viper22a spans from 7 V to 27.5 V. Some alternatives, such as LNK364PN, may support slightly higher or lower voltage ranges. Current capability also varies. Viper22a triggers current limit at 1.5 A, while other ICs might offer higher or lower thresholds. This difference impacts the maximum load each IC can support.
Pin compatibility remains a key consideration. Most viper22a equivalents use similar 8-pin packages, but the exact pinout may differ. Designers must check datasheets to confirm that the replacement IC matches the original pin configuration. Switching frequency also varies. Viper22a operates between 600 and 700 kHz, while some alternatives use fixed frequencies, which can affect noise and efficiency.
Note: Always review the specifications and pin diagrams before selecting a viper22a replacement. This step ensures the new IC will function correctly in the existing circuit.
Each viper22a equivalent offers unique strengths. Some excel in low standby power, while others provide enhanced protection features. By comparing these specifications, engineers can select the best IC for their power supply design.
What is VIPER22A?
Features
The viper22a is a highly integrated switch-mode power supply controller. It combines a power MOSFET and a control circuit in one compact package. This design helps engineers build efficient and reliable power supplies with fewer external parts. The viper22a smps controller stands out for its ability to handle a wide range of input voltages and deliver stable output.
Here are some important features of viper22a:
-
Integrated high-voltage MOSFET for direct connection to AC mains.
-
Fixed switching frequency of 60 kHz for consistent performance.
-
Current-mode control for better stability and fast response.
-
Overtemperature protection and undervoltage lockout for safety.
-
Low standby power, which improves energy efficiency.
-
Available in DIP-8 and SO-8 packages for flexible design options.
The table below shows the main technical specifications of viper22a:
| Parameter | Value / Description |
|---|---|
| Input Voltage Range | 85-265V AC |
| Output Power | Up to 14W |
| Switching Frequency | 60 kHz (fixed) |
| MOSFET Drain-Source Voltage | Up to 730V |
| Peak Current Limit | 0.7 A |
| Off-State Drain Current | 0.1 mA |
| Package Options | DIP-8, SO-8 |
The viper22a offers a strong balance of efficiency, protection, and simplicity for power supply designs.
Applications
Engineers use viper22a in many different applications. Its design supports both low and medium power needs. The viper22a works well in devices that require reliable AC-DC conversion.
Common applications include:
-
Small switch-mode power supplies for home electronics.
-
Standby power supplies in televisions and monitors.
-
Battery chargers for mobile devices and cordless tools.
-
LED drivers for lighting systems.
-
Auxiliary power supplies in industrial equipment.
-
Power adapters for routers and networking devices.
The viper22a smps controller helps designers meet strict energy standards in these applications. Its built-in protection features make it a safe choice for consumer and industrial products. Many engineers select viper22a when they need a compact, efficient, and reliable solution for their power supply applications.
VIPER22A Circuit
Typical Schematic
A typical viper22a circuit helps engineers design efficient and compact power supplies. The schematic usually includes the viper22a IC, a transformer, input and output capacitors, a rectifier diode, and a feedback network. The viper22a connects directly to the AC mains through a bridge rectifier and filter capacitor. The transformer isolates the output from the input, which improves safety. The output section uses a fast recovery diode and a filter capacitor to provide a stable DC voltage.
Below is a table showing important performance parameters for a standard viper22a circuit:
| Parameter | Value |
|---|---|
| Switching Frequency | 60 kHz |
| VDD Voltage Range | 9 V to 38 V |
| Peak Current Limit | 0.7 A (typical) |
| Maximum Output Current | 0.84 A |
| Drain-Source Voltage | Up to 730 V |
| Fall Time | 100 ns |
| Rise Time | 50 ns |
| Off-state Drain Current | 0.1 mA |
The viper22a circuit supports a wide voltage range and delivers reliable performance in many power supply designs.
Circuit Explanation
The viper22a circuit starts by converting AC voltage to DC using a bridge rectifier. The filter capacitor smooths the DC voltage before it reaches the viper22a. The IC then switches the transformer at a fixed frequency of 60 kHz. This switching action transfers energy from the primary to the secondary winding. The transformer provides isolation and steps down the voltage as needed.
On the output side, a fast recovery diode rectifies the signal. The filter capacitor removes any remaining ripple, giving a clean DC output. The feedback network monitors the output voltage and sends a signal back to the viper22a. This feedback helps the circuit maintain a stable output even if the load changes.
The viper22a circuit includes several protection features. Overload, overvoltage, and undervoltage lockout keep the circuit safe during faults. The IC’s low off-state drain current and fast switching times improve efficiency. Engineers often choose this circuit for its simplicity, reliability, and ability to meet modern energy standards.
VIPER22A Datasheet Highlights
Electrical Parameters
The datasheet for viper22a lists several important electrical parameters. These values help engineers understand how the IC performs in real-world power supply designs. The table below shows the main features and test data that make viper22a a strong choice for many applications:
| Parameter / Feature | Details / Description |
|---|---|
| Input Voltage Range | 85-265V AC |
| Output Power Capability | Up to 14W (wide-range input) |
| Switching Frequency | Fixed at 60kHz |
| MOSFET Drain-Source Voltage | Rated up to 730V |
| Integrated Power MOSFET | Reduces external component count, simplifying design |
| Control Method | Current-mode control for improved performance and stability |
| Protection Features | Overtemperature protection, undervoltage lockout, over-voltage and over-current protection |
| Efficiency | High efficiency with optimized low power consumption in standby mode |
| Packaging Options | DIP-8 (through-hole) and SO-8 (surface-mount) for thermal management and design flexibility |
These parameters show that viper22a can handle a wide range of input voltages and deliver reliable output power. The fixed switching frequency and integrated MOSFET help simplify circuit design and improve efficiency.
Selection Criteria
When selecting viper22a for a power supply project, engineers look at several key factors. They check the input voltage range to make sure it matches the application. The output power capability must meet the needs of the device. The fixed switching frequency helps control noise and efficiency. Engineers also value the built-in protection features, which keep circuits safe during faults.
Tip: Always review the packaging options. DIP-8 suits through-hole designs, while SO-8 works well for surface-mount layouts.
The integrated power MOSFET reduces the number of external parts. This feature saves space and lowers the risk of errors during assembly. The current-mode control method gives better performance and stability, especially in changing load conditions. By considering these criteria, engineers can choose viper22a with confidence for battery chargers, LED drivers, and other compact power supplies.
Overview of Each VIPER22A Equivalent IC
VIPER12A Overview
VIPER12A serves as a reliable choice for low-power switch-mode power supplies. This IC shares many features with viper22a, such as a high-voltage MOSFET, current mode control, and built-in protection mechanisms. VIPER12A operates at a fixed 60 kHz switching frequency and supports input voltages from about 9V to 38V. It handles up to 200mA output current, which is slightly less than viper22a. Designers often use VIPER12A in SMPS, LED lighting, and battery chargers. The table below compares key parameters:
| Parameter | VIPER12A | VIPER22A |
|---|---|---|
| Input Voltage Range | ~9V to 38V | ~8V to 38V |
| Output Current Capability | Up to 200mA | Up to 250mA |
| Switching Frequency | Fixed 60 kHz | Around 60 kHz |
| Protection Mechanisms | Yes | Yes |
VIPER12A’s similar pin configuration and package options make it easy to use as a viper22a replacement in many designs.
AP8012 Overview
AP8012 provides a cost-effective solution for small AC-DC converters. It integrates a high-voltage MOSFET and advanced protection circuits. AP8012 works well in charger circuits and auxiliary power supplies. Its low standby power consumption helps meet energy-saving standards. AP8012 supports lower maximum output power compared to viper22a, making it suitable for low-power applications.
LNK364PN Overview
LNK364PN belongs to the LinkSwitch-II family. It combines a 725V power MOSFET and a controller in one package. LNK364PN offers high efficiency and low standby losses. Engineers use this IC in compact adapters and standby power supplies. Its wide input voltage range and robust protection features make it a strong alternative to viper22a.
TNY280PN Overview
TNY280PN is part of the TinySwitch-III series. It integrates a high-voltage MOSFET and controller. TNY280PN delivers reliable performance in low-power SMPS applications. It includes over-temperature and over-voltage protection. The fixed switching frequency matches many viper22a designs, allowing for direct replacement in similar circuits.
VIPER22A-E Overview
VIPER22A-E builds on the strengths of the original viper22a. It supports driving LED lamps from 1W to 12W with output voltages between 10V and 35V, all on the same PCB layout. This IC eliminates the need for a transformer and optocoupler in non-isolated buck designs, reducing cost and complexity. Internal features include a constant current source for startup, built-in protections, and efficient EMI control. The design supports a peak drain current of 560 mA and complies with EMI standards without extra X-capacitors. These characteristics make VIPER22A-E a flexible and safe choice for LED drivers and power supplies.
Note: VIPER22A-E’s design flexibility and robust protection features help engineers create reliable and efficient power solutions.
LD7575PS Overview
LD7575PS targets green-mode power supply designs. It integrates a high-voltage startup circuit and advanced protection mechanisms. LD7575PS reduces standby power consumption, helping devices meet modern energy standards. Its compact package and reliable operation make it a popular choice for replacing viper22a in new designs, especially where energy efficiency is important.
OB2269CP Overview
OB2269CP offers a high-performance solution for off-line flyback converters. It features a built-in high-voltage MOSFET and comprehensive protection functions. OB2269CP operates efficiently in both low and medium power applications. Its design supports low standby power and high reliability. Engineers often use OB2269CP as a direct replacement for viper22a in consumer electronics and industrial power supplies.
Choosing the Right VIPER22A Equivalent IC
Application Considerations
Selecting the best viper22a equivalent ic starts with understanding the needs of the target applications. Engineers often use the viper22a in power supplies for devices like battery chargers, industrial controllers, and microcontroller circuits. Each application has unique requirements for voltage, current, and protection features.
For example, a 12V, 1A power supply design for European markets must handle 220-240VAC input and deliver a stable output with low ripple. The viper22a supports these needs by offering wide input voltage compatibility and robust protection circuits. Designers choose low ESR capacitors to keep output ripple below 30mV, and they add surge protection up to 275VAC. The IC’s automatic burst mode reduces power use during light loads, which helps meet energy efficiency standards. Hiccup mode provides extra safety by protecting against overvoltage. These features make the viper22a and its equivalents reliable for open frame SMPS designs up to 20W.
When comparing alternatives, engineers look at switching frequency, current rating, and package type. Some equivalents, like VIPER12A or LNK364PN, offer different switching frequencies or output power levels. Matching these specifications to the application ensures stable operation and long-term reliability.
Tip: Always match the IC’s power rating and protection features to the demands of your specific applications.
Pin Compatibility
Pin compatibility plays a key role when replacing the viper22a in existing designs. Most viper22a equivalents use an 8-pin PDIP or SO package, but the exact pinout can differ. Engineers must check datasheets to confirm that the new IC matches the original pin layout and electrical connections.
The table below summarizes important pin and electrical benchmarks:
| Parameter | Details / Benchmark |
|---|---|
| Pin Compatibility | Identical pin layout: Source (pins 1,2), Feedback (pin 3), VDD (pin 4), Drain (pins 5-8) |
| Voltage Range | 9 V to 38 V |
| Drain-Source Voltage (Vds) | Up to 730 V |
| Peak Current Limit | 0.7 A |
| Switching Frequency | 60 kHz |
| Package Types | PDIP and SO 8-pin |
Pin-to-pin compatibility allows for a direct swap without redesigning the PCB. However, engineers must also compare MOSFET power capabilities and feedback current to avoid performance issues. Careful review of datasheets and pin diagrams helps maintain reliability in all applications.
Common Uses of VIPER22A and Equivalents
SMPS Applications
Engineers often use the viper22a smps controller in switched-mode power supply designs. These controllers help create efficient circuits for converting electrical energy. Switched-mode power supplies appear in many electronic devices, such as televisions, computers, and LED lighting systems. The viper22a smps controller supports both isolated and non-isolated smps circuits. It provides stable voltage and current, which protects sensitive components.
Switched-mode power supply applications benefit from the integrated protection features of these controllers. Overload, overvoltage, and thermal shutdown functions keep the circuit safe. Many engineers select viper22a equivalents for their ability to handle wide input voltage ranges. These ICs also reduce standby power, which helps meet modern energy standards.
Note: Switched-mode power supplies use high-frequency switching to improve efficiency and reduce heat.
A table below shows common devices that use these controllers:
| Device Type | Typical Application |
|---|---|
| LED Drivers | Lighting Systems |
| TV Power Boards | Home Electronics |
| Battery Chargers | Portable Devices |
| Industrial Controls | Automation Equipment |
AC-DC Converters
The viper22a smps controller also plays a key role in offline ac to dc converters. These converters change high-voltage AC from the mains into safe, low-voltage DC. Many consumer and industrial products rely on these circuits for reliable operation. Engineers use viper22a and its equivalents in applications such as adapters, routers, and small appliances.
Offline ac to dc converters require stable output and strong protection. The viper22a smps controller delivers both. It supports switched-mode power supply applications that demand compact size and high efficiency. Designers often choose these ICs for smps circuits in power adapters and auxiliary power supplies.
Tip: Always check the datasheet to match the controller with the specific requirements of your applications.
Selecting the right viper22a equivalent IC ensures reliable power supply performance. The top alternatives—VIPER12A, AP8012, LNK364PN, TNY280PN, VIPER22A-E, LD7575PS, and OB2269CP—offer unique strengths for different applications. Engineers should always check datasheets and application notes before making a final choice.
For more technical details, review manufacturer resources and reference designs.
FAQ
What is the main function of the VIPER22A IC?
The VIPER22A IC controls power conversion in switch-mode power supplies. It combines a high-voltage MOSFET and a PWM controller. This integration helps engineers design compact and efficient AC-DC converters.
Can engineers directly replace VIPER22A with its equivalents?
Most VIPER22A equivalents offer similar pinouts and features. Engineers should always check datasheets for pin compatibility and electrical ratings before replacement. This step ensures safe and reliable operation.
Which applications benefit most from VIPER22A and its equivalents?
VIPER22A and its alternatives work best in SMPS, AC-DC adapters, LED drivers, and battery chargers. These ICs provide stable voltage, high efficiency, and strong protection for consumer and industrial devices.
How does VIPER22A improve energy efficiency?
VIPER22A uses low standby power and automatic burst mode. These features reduce energy loss during light loads. Devices using VIPER22A often meet strict energy-saving standards.
Written by Jack from AIChipLink.
AIChipLink, one of the fastest-growing global independent electronic components distributors in the world, offers millions of products from thousands of manufacturers, and many of our in-stock parts is available to ship same day.
We mainly source and distribute integrated circuit (IC) products of brands such as Broadcom, Microchip, Texas Instruments, Infineon, NXP, Analog Devices, Qualcomm, Intel, etc., which are widely used in communication & network, telecom, industrial control, new energy and automotive electronics.
Empowered by AI, Linked to the Future. Get started on AIChipLink.com and submit your RFQ online today!
