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)： 7/25頁
文件大?。?/td> 1478K
代理商： L6585DTR
L6585D
End of life – window comparator
15/25
6
End of life – window comparator
To detect the ageing of the lamp with particular attention to the effect appearing as
asymmetric rectification, a programmable window comparator has been introduced
(centered around “VREF” with amplitude “VW”) that triggers when the EOL-R voltage is
higher than VREF+ VW/2 or lower than VREF – VW/2.
By means of the resistor connected to the EOLP pin, it is possible to select:
1.
the sensing mode:
–
fixed reference: the centre of the window comparator (VREF) is fixed at 2.5V by an
internal reference;
–
tracking reference: the centre of the window comparator is the voltage at pin CTR
(that is a signal proportional to the PFC output voltage).
2.
the half-window amplitude (VW/2): 220mV or 720mV.
Figure 6.
End-of-life detection circuitry and waveforms
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
V
Z1
V
Z2
R
E1
R
E2
V
K
V
LAMP
R
P1
R
P2
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
R
E1
R
E2
V
K
V
LAMP
HVBUS (100Hz or 120Hz)
CTR
VEOLR
V
REF –W/2
V
REF + W/2
PFC
OUT
PFC
OUT/2
V
CB
V
LAMP
VK
V
EOLR
V
REF + W/2 + VZ1 + VR2
V
REF –W/2 – VZ1 –VR2
V
REF
V
REF –W/2
V
REF + W/2
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
V
Z1
V
Z2
R
E1
R
E2
V
K
V
LAMP
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
V
Z1
V
Z2
R
E1
R
E2
V
K
V
LAMP
R
P1
R
P2
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
R
E1
R
E2
V
K
V
LAMP
R
P1
R
P2
BOOT
HSD
LSD
OUT
EOLR
C
BLOCK
C
BOOT
HV BUS
CTR
EOLP
R
FL or RFH
WINDOW
COMPARATOR
AMPLITUDE
INPUT
INTERNAL
FIXED REF.
R
E1
R
E2
V
K
V
LAMP
HVBUS (100Hz or 120Hz)
CTR
VEOLR
V
REF –W/2
V
REF + W/2
PFC
OUT
PFC
OUT/2
V
CB
V
LAMP
VK
V
EOLR
V
REF + W/2 + VZ1 + VR2
V
REF –W/2 – VZ1 –VR2
V
REF
V
REF –W/2
V
REF + W/2
HVBUS (100Hz or 120Hz)
CTR
VEOLR
V
REF –W/2
V
REF + W/2
PFC
OUT
PFC
OUT/2
V
CB
V
LAMP
VK
V
EOLR
V
REF + W/2 + VZ1 + VR2
V
REF –W/2 – VZ1 –VR2
V
REF
V
REF –W/2
V
REF + W/2
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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(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
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
L6590D013TR 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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