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参数资料
| 型号： | L6585DTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 0.6 A POWER FACTOR AND FLUORESCENT LIGHT CONTROLLER, 250 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | LEAD FREE, SOP-20 |
| 文件页数： | 10/25页 |
| 文件大小： | 1478K |
| 代理商： | L6585DTR |
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| L6590D | 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 |
| L6590D013TR | 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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