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UCC3819
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Category:ACDC- and -DCDC-power supply
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Product Name:BiCMOS power factor preregulator
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Manufacturers:TI
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Production Batch Number:09+10+
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Encapsulation:16PDIP
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Stock Status:There is stock
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Stock Quantity:5000
- Minimum order quantity: 1
- Details:
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该UCC2819/UCC3819提供所有功能，主动式功率因数校正预调节器必要的。 The controller realizes that by shaping the AC input current waveform, corresponding to the AC input line voltage, the power factor is close. Average current mode control maintains stable, low-distortion sinusoidal line current.
在德州仪器的BiCMOS工艺设计，UCC3819提供诸如低启动电流的新功能，降低功耗，过电压保护，欠压锁定检测电路和并联一个领先的调制技术，以减少大容量电容的纹波电流。
该UCC3819允许输出电压被带出误差放大器同相输入端编程。
characteristic
- Controls the boost preregulator to near power factor
- World Wide network cable runs
- Overvoltage protection
- Precise power limiting
- Average current mode control
- Improved immunity to interference
- Improved feed-forward line adjustment
- Leading edge modulation
- Typical start-up current of 150μA
- Low-power BiCMOS operation
- 10.8 - V to 17 V operation
- Programmable Output Voltage (Boost Topology Tracking)
parameter
| |
UCC3819 |
| On/Off of Undervoltage Lockout Threshold (5) |
10.2/9.7 |
| Operating power supply (max) (5) |
17 |
| Starting current (mA) |
0.15 |
| Operating Supply Current (mA) |
4 |
| Vref's (V) |
7.5 |
| Thor of Vref (%) |
1.5 |
| Duty cycle (max.) (%) |
100 |
| Actual operating frequency (max) (MHz) |
0.25 |
| Pins/Packets |
16PDIP |
andUCC3819Related ICs are:
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