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UCC28051
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Category:ACDC- and -DCDC-power supply
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Product Name:PFC controller for low to medium power applications requiring IEC 1000-3-2
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Manufacturers:TI
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Production Batch Number:10+
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Encapsulation:8PDIP, 8SOIC
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Stock Status:There is stock
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Stock Quantity:30000
- Minimum order quantity: 1
- Details:
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The UCC38050 and UCC38051 are PFC controllers for low to medium power applications requiring compliance with the IEC 1000-3-2 harmonic rejection standard. It is designed to control a transition business model boost preregulator (also known as boundary conduction mode or critical conductive mode operation). It employs a feedback error handling, a transimpedance amplifier, a simple voltage generation current command proportional to the input voltage, a multiplier, a current detector (PWM) comparator, PWM logic, and a totem pole driver for driving an external FET.
In transition mode operation, the PWM circuit self-oscillating and conducting is being governed by an inductor zero current detector (ZCD PIN) and shutdown is being governed by a current-sense comparator.
characteristic
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Conversion mode PFC controller is low
Cost in the implementation phase
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Industry is pin-compatible with improved ones
Feature set
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Improved transient response
Slew rate comparison
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Protection against overvoltage during zero-power detection
Light load conditions
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Accurate tight output internal Vnumber
Regulations
- Two UVLO options
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Overvoltage Protection (OVP)
Feedback open circuit protection and enablement
circuit
- ± 750 mA peak gate drive current
- Low start-up and operating current
- Lead-Free (Pb) - Lead-free package
-
apply
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Desktop switch-mode power supplies,
Monitors, TVs and set-top boxes (set-top boxes)
- AC adapter front power supply
- Electronic ballast
parameter
| |
|
UCC28051 |
|
|
| On/Off of Undervoltage Lockout Threshold (5) |
|
16/10 |
|
|
| Operating power supply (max) (5) |
|
18 |
|
|
| Starting current (mA) |
|
0.075 |
|
|
| Operating Supply Current (mA) |
|
4 |
|
|
| Actual operating frequency (max) (MHz) |
|
0.2 |
|
|
| Pins/Packets |
|
8PDIP，8SOIC |
|
|
andUCC28051Related ICs are:
| Model |
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lot number |
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illustrate |
| UCC28051DR |
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TI |
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8PDIP, 8SOIC |
PFC controller for low to medium power applications requiring IEC 1000-3-2 |
| UCC28051D |
TI |
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SOP |
|
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