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| 型号： | L6585DE |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | POWER FACTOR CONTROLLER, PDSO20 |
| 封装： | ROHS COMPLIANT, SOP-20 |
| 文件页数： | 11/33页 |
| 文件大小： | 2064K |
| 代理商： | L6585DE |
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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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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6585DETR | 功能描述:功率因数校正 IC Combo IC for PFC and ballast control RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| L6585DTR | 功能描述:DC/DC 开关控制器 Combo IC RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| L6590 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:FULLY INTEGRATED POWER SUPPLY FIPS |
| L6590A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:FULLY INTEGRATED POWER SUPPLY |
| L6590AN | 功能描述:开关变换器、稳压器与控制器 700 Volt Monolithic RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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