參數(shù)資料
型號(hào): 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): 6/25頁
文件大?。?/td> 1478K
代理商: L6585D
Application information
L6585D
14/25
5.1.3
Run mode (time interval C Figure 5)
As the voltage at EOI exceeds 1.9V and the lamp has ignited, the L6585D enters Run mode
and remains in this condition unless one of the protections (all enabled in this mode) is
trigged.
The switching frequency reaches the FRUN value set by RRUN and COSC:
Equation 4
f
RUN
1.328
R
RUN
C
OSC
-----------------------------------
=
Figure 5.
Oscillator, pre-heating and ignition sequence
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
τ = R
D x CD
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
V
HBCS
V
HBCS
V
HBCS
V
Z
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
τ = R
D x CD
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
Tch
EOI
4.63V
1.5V
f
PRE
f
RUN
V
CC
2V
V
CC(on)
V
CC(off)
V
LAMP
f
HB
AB
C
1.9V
V
HBCS
V
HBCS
V
HBCS
V
Z
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