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参数资料
| 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： | 29/33页 |
| 文件大小： | 2064K |
| 代理商： | L6585DE |
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L6585DE
Pin settings
5/33
Pin n.
Name
Function
4Tch
Pin for setting the preheating time and protection intervention.
Connect an RC parallel network (Rd and Cd) to ground.
Preheating: the Cd is charged by an internal current generator. When the pin
voltage reaches 4.63 V the generator is disabled and the capacitor discharges
because of Rd. Once the voltage drops below 1.5 V, the preheating finishes, the
ignition phase starts and the RdCd is pulled to ground.
Ignition and Run mode: During proper behavior of the IC, this pin is low
impedance. During a fault (either over-current or EOL) the internal generator
charges the Cd to 4.63 V and then another current generator discharges the
same capacitor. In this way, Cd sets the fault timing (shorter than preheating
time).
5EOLP
Pin to program the EOL comparator.
It is possible to select both the EOL sensing method (fixed reference or
reference in tracking with CTR) and the window comparator amplitude by
connecting a resistor (REOLP) to ground.
6EOL
Input for the window comparator.
It can be used to detect lamp ageing for either “lamp to ground” or “block
capacitor to ground” configurations.
This function is blanked during the ignition phase.
7CTR
Input pin for:
- PFC over-voltage detection: the PFC driver is stopped until the voltage returns
in the proper operating range
- Feedback disconnection detection
- Reference for EOL comparator (in case tracking reference)
- The pin can be used also for shutdown
8MULT
Multiplier external input. This pin is connected to the rectified mains voltage via a
voltage divider and provides the sinusoidal reference to the PFC current loop.
9COMP
Output of the error amplifier. A compensation network is placed between this pin
and INV to achieve stability of the PFC voltage control loop and ensure high
power factor and low THD.
10
INV
Inverting input of the error amplifier. Output voltage of the PFC pre-regulator is
fed to the pin through a voltage divider.
11
ZCD
Boost inductor demagnetization sensing input for PFC transition-mode
operation. A negative-going edge triggers PFC MOSFET turn-on.
During startup or when the voltage is not high enough to arm the internal
comparator, the PFC driver is triggered by means of an internal starter.
12
PFCCS
Input to the PFC PWM comparator. The current flowing through the PFC
MOSFET is sensed through a resistor. The resulting voltage is applied to this pin
and compared with an internal sinusoidal-shaped reference, generated by the
multiplier, to determine the PFC MOSFET’ s turnoff.
A second comparison level detects abnormal currents (due to boost inductor
saturation, for example) and, on this occurrence, shuts down the PFC gate.
An internal LEB prevents undesired function triggering.
Table 1.
Pin functions (continued)
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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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