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UCC3818
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所属类别：ACDC-和-DCDC-电源
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产品名称：BiCMOS 功率因子前置稳压器
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厂商：TI
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生产批号：09+
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封装：16PDIP, 16SOIC, 16TSSOP
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库存状态：有库存
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库存量：4680
- 最低订购量：1
- 详细资料：
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The UCCx817/18 series provides all the features necessary for the active power factor correction preconditioner. The controller realizes that by shaping the AC input current waveform, the corresponding AC input line voltage and power factor are close. The average current mode control maintains a stable, low-distortion sinusoidal current.
Designed in Texas Instruments' BiCMOS process, UCC2817/UCC2818 offers features such as low start-up current, reduced power consumption, overvoltage protection, undervoltage lock-out detection shunt circuitry, leading modulation technology to reduce large capacitance with new features of ripple current through an improved, low-offset (± 2 mV) current amplifier to reduce distortion under light load conditions.
characteristic
- Controls the boost pre-regulator to the near power factor
- Distortion of boundaries
- World Wide Network cable operation
- Overvoltage protection
- Precise power limits
- Average current mode control
- Improve anti-interference
- Improved feedforward line adjustment
- Frontier modulation
- Typical start-up current of 150μA
- Low-power BiCMOS operation
- 12 V to 17 V operation
- The frequency range is from 6 kHz to 220 kHz
| |
|
UCC3818 |
| On/off of undervoltage lockout threshold (5) |
|
10.5/10 |
| Working power supply (max) (five) |
|
18 |
| Starting Current (mA) |
|
0.15 |
| Operating Supply Current (mA) |
|
4 |
| Vref (V) |
|
7.5 |
| Vref's Thor (%) |
|
1.5 |
| Duty Cycle (Max) (%) |
|
100 |
| Actual operating frequency (max) (MHz) |
|
0.25 |
| Pin/Pack |
|
16PDIP，16SOIC，16TSSOP |
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