參數(shù)資料
型號: L6585DTR
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): 4/25頁
文件大?。?/td> 1478K
代理商: L6585DTR
Application information
L6585D
12/25
5
Application information
5.1
Start-up sequence
5.1.1
Pre-heating (time interval A Figure 5)
After IC turn-on, unless a lamp absence is detected, the oscillator starts switching at a
frequency (fPRE) set by values of COSC and RRUN and RPRE Figure 4:
Equation 1
The pre-heating time is:
Equation 2
where CD and RD are shown in Figure 4 and ICH is typically 34 A.
Figure 4.
Oscillator, pre-heating and ignition circuitry
f
PRE
1.328
C
OSC
R
RUN
R
PRE
||
()
------------------------------------------------------------
=
T
PRE
4.63
C
D
I
CH
---------
R
D
C
D
4.63
1.52
-----------
ln
+
=
RF
EOI
Tch
I
MAX
V
REF
LOGIC
R
RUN
R
PRE
C
IGN
R
D
C
D
C
OSC
OSC
RF
EOI
Tch
I
MAX
V
REF
LOGIC
R
RUN
R
PRE
C
IGN
R
D
C
D
C
OSC
OSC
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相關(guān)代理商/技術(shù)參數(shù)
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L6590 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:FULLY INTEGRATED POWER SUPPLY FIPS
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L6590D 功能描述:開關(guān)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(guān)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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