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參數(shù)資料
| 型號： | L6585D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.6 A POWER FACTOR AND FLUORESCENT LIGHT CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | LEAD FREE, SOP-20 |
| 文件頁數(shù)： | 10/25頁 |
| 文件大小： | 1478K |
| 代理商： | L6585D |
CTR
L6585D
18/25
8
CTR
This is a multi-function pin, connected to a resistive divider to the PFC output bus:
●
PFC over-voltage: in case of PFC output overshoot (e.g. at start-up) that causes a
threshold crossing, the PFC section stops switching until the pin voltage falls below
3.26V (typ.); this is helpful because the bandwidth of the PFC error amplifier is narrow
so the control loop is not fast enough to properly reacts
●
Feedback disconnection: The OVP function above described (together with the static
one embedded in the PFC error amplifier) is able to handle “normal” over-voltage
conditions, i.e. those resulting from an abrupt load/line change or occurring at start-up.
In case of over-voltage generated when the upper resistor of the feedback output
divider fails open, the control loop can no longer read the information on the output
voltage and will force the PFC pre-regulator to work at maximum ON time; if this occurs
(i.e. the pin INV falls below 1.2V, typ.) and the CTR detects an OVP, the gate drivers
activity is immediately stopped, the device enters low consumption and the condition is
latched as long as the IC supply voltage is above the UVLO threshold;
●
Reference for EOL in case of tracking reading.
●
Disable: by forcing the pin below 0.75V an immediate unlatched shut-down is activated;
it can be also used as re-lamp in fact after the pin voltage is above 0.8V a pre-
heating/ignition sequence is repeated.
相關PDF資料 |
PDF描述 |
|---|---|
| L6585DTR | 0.6 A POWER FACTOR AND FLUORESCENT LIGHT CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20 |
| L6590AN | 0.7 A SWITCHING REGULATOR, 74 kHz SWITCHING FREQ-MAX, PDIP8 |
| L6590D013TR | 0.7 A SWITCHING REGULATOR, 74 kHz SWITCHING FREQ-MAX, PDSO16 |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| L6585D_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Combo IC for PFC and ballast control |
| L6585DE | 功能描述:功率因數(shù)校正 IC Combo IC for PFC Ballast control RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6585DETR | 功能描述:功率因數(shù)校正 IC Combo IC for PFC and ballast control RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6585DTR | 功能描述:DC/DC 開關控制器 Combo IC RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK |
| L6590 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:FULLY INTEGRATED POWER SUPPLY FIPS |
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