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參數(shù)資料
| 型號(hào)： | TEA1742T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A POWER FACTOR CONTROLLER, 150 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | 3.90 MM, PLASTIC, MS-012, SOT96-1, SOP-8 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 99K |
| 代理商： | TEA1742T |
TEA1742T_1
NXP B.V. 2009. All rights reserved.
Objective data sheet
Rev. 01 — 10 February 2009
5 of 17
NXP Semiconductors
TEA1742T
GreenChip PFC controller
7.
Functional description
7.1 General control
The TEA1742T contains a controller for a power factor correction circuit. A typical
conguration is shown in Figure 3.
7.1.1 Start-up and UnderVoltage LockOut (UVLO)
The control logic activates the internal circuitry when the voltage on pin VCC passes the
Vstartup level. First, the soft start capacitor on the PFCSENSE pin is charged. When the
soft start capacitor on the PFCSENSE pin is charged, the PFC circuit is activated. See
When one of the protection functions is activated, the converter stops switching. For a
restart protection the VCC has to be pulled below Vth(UVLO) to reset the protection. For a
latched protection (OTP), the VCC has to drop below about 4 V (typ).
Fig 3.
Typical conguration
76
5
4
3
2
1
TEA1742T
014aaa736
8VCC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1742T/N1,118 | 功能描述:DC/DC 開關(guān)控制器 GreenChip PFC controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| TEA1750 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:The TEA1750 combines a controller for Power Factor Correction (PFC) and a flyback controller. |
| TEA1750T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:GreenChip III SMPS control IC |
| TEA1750T,518 | 制造商:NXP Semiconductors 功能描述:SYNC RECTIFIER (SR) CONTROLLER |
| TEA1750T/N1,518 | 功能描述:DC/DC 開關(guān)控制器 GREENCHIPIII RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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