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UCC28051
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所属类别：ACDC-和-DCDC-电源
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产品名称：PFC 控制器，用于要求符合 IEC 1000-3-2 的低至中功率应用领域
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厂商：TI
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生产批号：10+
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封装：8PDIP, 8SOIC
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库存状态：有库存
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库存量：30000
- 最低订购量：1
- 详细资料：
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UCC38050 UCC38051 are PFC controllers for low to medium power applications that require conformance to IEC 1000-3-2 harmonic suppression standards. It is designed to control a business mode in transition with a boost preconditioner (also known as boundary conduction mode or critical conduction mode operation). It employs a feedback error handling, a transconductance amplifier, a simple voltage generation current instruction proportional to the input voltage, a multiplier, a current detector (PWM) comparator, PWM logic, and a totem pole driver for driving external FETs.
In transition mode operation, the PWM circuit self-oscillates and conducts by an inductor zero current detector (ZCD PIN) and shutdown by the current sense comparator.
characteristic
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Low conversion mode PFC controller
Cost in the implementation stage
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Industrial compatible with improved pins
Feature set
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Improved transient response
Comparison of swing rates
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Prevents overvoltage protection during zero power detection
Light load conditions
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Accurate and strict output internal V-number
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
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apply
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desktop switch-mode power supply,
Monitors, TVs, and set-top boxes (set-top boxes)
- AC adapter front-end power supply
- Electronic ballast
parameter
| |
|
UCC28051 |
|
|
| On/off of undervoltage lockout threshold (5) |
|
16/10 |
|
|
| Working power supply (max) (five) |
|
18 |
|
|
| Starting Current (mA) |
|
0.075 |
|
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| Operating Supply Current (mA) |
|
4 |
|
|
| Actual operating frequency (max) (MHz) |
|
0.2 |
|
|
| Pin/Pack |
|
8PDIP，8SOIC |
|
|
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