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Description
PFC IC Critical Conduction (CRM) 16-SOIC
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The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！
The MC33368 is an active power factor controller that functions as a boost preconverter in off line power supply applications. MC33368 is optimized for low power, high density power supplies requiring a minimum board area,reduced component count and low power dissipation. The narrow body SOIC package provides a small footprint. Integration of the high voltage startup saves approximately 0.7 W of power compared to resistor bootstrapped circuits.
The C33368 features a watchdog timer to initiate output switching, a one quadrant multiplier to force the line current to follow the instantaneous line voltage a zero current detector to ensure critical conduction operation,a transconductance error amplifier, a current sensing comparator,a 50Vreference,an undervoltage lockout (UVLO) circuit which monitors the VCC supply voltage and a CMOS driver for driving MOSFETs. The MC33368 also includes a programmable output switching frequency clamp. Protection features include an output overvoltage comparator to minimize overshoot, a restart delay timer and cycle by-cycle current limiting
● Lossless Off Line Startup
● Output Overvoltage Comparator
● Leading Edge Blanking (LEB) for Noise Immunity
● Watchdog Timer to Initiate Switching
● Restart Delay Timer
| QUANTITY | UNIT PRICE | PLUS UNIT PRICE | TOTAL PRICE |
|---|---|---|---|
| ≥1: | US $0.97370 | US $0.91528 | US $0.91528 |
Substitute (equivalent) Product
| Substitute Product | Brief Description |
|---|---|
| MC33364D | A similar low power primary-side offline PWM controller IC providing features like under-voltage lockout, current limiting, and automatic restart for over-temperature protection. |
| UC3845BN | A versatile high performance fixed frequency current mode PWM controller IC used in off-line and DC to DC converter applications, providing optimized control loop dynamics and peak current limiting. |
| SG6848TZ | A high performance multi-mode off-line PWM controller providing primary-side regulation and outstanding power-saving advantages. |
| ICE3B0565J | An integrated PFC and Flyback controller IC designed for optimized efficiency power factor correction with low standby power consumption, commonly used in industrial power supplies. |
| NCP1200D60R2G | A fixed frequency compact switching regulator controller IC with skip mode and frequency jittering for low power standby mode applications, ensuring high versatility in voltage and current regulation. |
| TOP223PN | A high efficiency off-line PWM switcher IC with integrated MOSFET offering electronic ballast and power factor correction capabilities, often used in AC-DC power converters. |
| LNK364PN | A compact, low power standby, off-line switched mode power supply IC integrated with Power MOSFET and high voltage switcher capabilities, ideal for cost-effective high efficiency power supplies. |
| LT1244CS8 | A high frequency current mode PWM controller IC with built-in, high voltage, start-up circuitry and leading-edge blanking for noise reduction, often utilized in various switching power supply and power converter applications. |
| TEA1732AT | An energy-saving SMPS controller IC facilitating primary side regulation, providing advanced power saving features for highly efficient and cost-effective power supplies. |
| VIPER22A | An off-line SMPS primary IC with a built-in rugged power MOSFET offering a high level of integration with low power consumption, utilized commonly in non-isolated off-line flyback converters. |
| L6562D | A power factor correction (PFC) controller IC providing continuous conduction mode operation and improved THD performance, suitable for designing high efficiency AC-DC converters. |
| UCC28051D | A high power factor, voltage mode continuous boost PWM controller used for programmable shutdown and soft-start applications, ensuring enhanced efficiency and power factor correction in power supplies. |
Product Usage
The MC33368D is a member of the MC33368 family, which are integrated circuit (IC) Controllers designed specifically for use in switched-mode power supplies (SMPS). Here are some common circuit applications where MC33368D might be used:
Flyback Converters:
Forward Converters:
DC-DC Converters:
Battery Chargers:
LED Drivers:
Power Factor Correction (PFC) Circuits:
Offline Converters:
The MC33368D provides various functionalities useful for these types of circuits, such as:
When designing circuits with MC33368D, make sure to follow the manufacturer’s datasheets and application notes for correct implementation and protection features.
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| Flag | Country | Estimated Delivery Time | Minimum First Weight Cost | ||
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| Express | Standard Shipping | Express (0.5kg) | Standard Shipping (0.05kg) | ||
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All UTSOURCE purchases have a 90 days money back return policy, plus a 100 days UTSOURCE warranty against any manufacturing defects.This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation.
MC33368D
MC33368D has several brands around the world that may have alternate names for MC33368D due to regional differences or acquisition. MC33368D may also be known as the following names:
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