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參數(shù)資料
| 型號： | L6585D |
| 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)： | 13/25頁 |
| 文件大?。?/td> | 1478K |
| 代理商： | L6585D |
Re–lamp
L6585D
20/25
Table 7.
Fault conditions
Fault
Condition
IC behavior
Action required
Lamp absence
(re-lamp comparator)
At turn-on: EOL-R
voltage higher than
4.63V
–The TCH charge doesn’t start (no
ignition)
– Drivers stopped
– IC low consumption (Vcc clamped)
Lamp replacement
(EOL-R below 4.63V)
Run mode: EOL-R
voltage higher than
4.63V
– All drivers stopped
– IC low consumption (Vcc clamped)
End of life
EOL-R voltage outside
the limits of window
comparator
–TCH cycle
(1) (reset if the fault
disappears)
– drivers stopped at the end of TCH
cycle
– IC low consumption (VCC clamped)
Re-lamp cycle (2)
Half-bridge current
sense
Ignition:
HBCS threshold
–TCH cycle
(1) with lamp voltage
control
– In case of HBCS at the end of the
TCH cycle, drivers stopped
– IC low consumption (Vcc clamped)
Re-lamp cycle (2)
Run mode:
HBCSL threshold
–TCH cycle
(1) with lamp voltage
control (frequency increase)
– In case of HBCS at the end of the
TCH cycle, drivers stopped
– IC low consumption (Vcc clamped)
Re-lamp cycle (2)
Run mode:
HBCSH threshold
– Drivers stopped
– IC low consumption (Vcc clamped)
Re-lamp cycle (2)
Shut-down
CTR voltage lower than
0.8V
– Drivers stopped
– IC low consumption (Vcc clamped)
When the CTR voltage
returns above 0.8V, the
IC driver restart with a
pre-heating sequence
Choke saturation
PFCS voltage higher
than 1.6V
– Drivers stopped
– IC low consumption (Vcc clamped)
Re-lamp cycle (2)(3)
Over-voltage of PFC
output
CTR voltage higher than
3.4V
– PFC driver stopped
When the CTR voltage
returns below
3.26V (Typ.), the PFC
driver restarts
PFC open loop
(feedback
disconnection)
CTR voltage higher than
3.4V AND INV voltage
lower than 1.2
– Drivers stopped
– IC low consumption (Vcc clamped)
Re-lamp cycle (2)(3)
1.
TCH cycle: charge of the TCH voltage up to 4.63V and discharge down to 1.50V following the RDCD time constant;
2.
Re-lamp cycle: the voltage at EOL-R pin must be first pulled above 4.63V and then released below it; this typically happens
in case of lamp replacement. After a re-lamp cycle, a new pre-heating sequence will be repeated.
3.
This fault actually is a "board" fault so a lamp replacement is not effective to restart the ballast
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相關(guān)代理商/技術(shù)參數(shù) |
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| L6585DE | 功能描述:功率因數(shù)校正 IC Combo IC for PFC Ballast control RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6585DETR | 功能描述:功率因數(shù)校正 IC Combo IC for PFC and ballast control RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
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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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