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參數(shù)資料
| 型號： | L6585DETR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | POWER FACTOR CONTROLLER, PDSO20 |
| 封裝： | ROHS COMPLIANT, SOP-20 |
| 文件頁數(shù)： | 11/33頁 |
| 文件大?。?/td> | 2064K |
| 代理商： | L6585DETR |
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L6585DE
Ballast section
19/33
edge blanking is active during this time in order to avoid any detection of hard switching
events, very common during this phase.
3.
Ignition: At the end of the TCH cycle, the EOI pin is left free in high impedance mode.
Therefore, the capacitor connected between EOI and ground is charged by RF through
RPRE. The current sunk from the RF pin decreases exponentially, and the frequency
along with it. An exponential decrease in switching frequency causes a linear increase
of the lamp voltage. When the lamp voltage reaches the strike value, the lamp ignites.
Ignition time is set by the value of RPRE and CIGN.
During ignition current control protection, anti-ballast choke saturation protection and
leading edge blanking are all active.
Figure 8.
Half-bridge protection thresholds during ignition
4.
Run mode: When the EOI voltage reaches 1.9 V, the IC enters run mode and the
switching frequency is set only by RRUN. Current control protection and anti-ballast
choke saturation are now active with a lower threshold, leading edge blanking is not
active and a fast hard switching detector is activated.
Figure 9.
Half-bridge protection thresholds during run mode
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| L6590A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:FULLY INTEGRATED POWER SUPPLY |
| L6590AN | 功能描述:開關變換器、穩(wěn)壓器與控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| L6590D | 功能描述:開關變換器、穩(wěn)壓器與控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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