STEVAL-ILB008V1 STMicroelectronics, STEVAL-ILB008V1 Datasheet - Page 20
STEVAL-ILB008V1
Manufacturer Part Number
STEVAL-ILB008V1
Description
BOARD EVAL BALLAST FOR L6585DE
Manufacturer
STMicroelectronics
Type
Power Factor Correctionr
Datasheets
1.L6585DETR.pdf
(33 pages)
2.STEVAL-ILB008V1.pdf
(4 pages)
3.STEVAL-ILB008V1.pdf
(4 pages)
Specifications of STEVAL-ILB008V1
Main Purpose
Lighting, Ballast Control
Embedded
No
Utilized Ic / Part
L6585DE
Primary Attributes
4 x 18w, T8 Lamps
Secondary Attributes
Preheating Ignition
Input Voltage
90 V to 265 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
L6585DE
Other names
497-10544
Ballast section
20/33
The oscillator characteristic curves represent the half bridge frequency versus the
resistance R placed between RF pin and ground. During preheating R is equal to R
parallel with
value of the
The value of
values please refer to AN2870.
The right value of R during preheating and run mode can be found graphically considering
the curve related with the chosen capacitor and respectively
Figure 10. Oscillator characteristics
Some useful equations are given:
C
R
C
OSC
PRE
OSC
capacitor and are depicted in Figure 10.
whereas during Run mode R is equal to R
is measured between pin 1 (OSC) and 15 (GND); for other capacitor
T
T
PRE
IGN
≅
=
3
T
⋅
Tch
R
PRE
=
. 4
I
⋅
CH
C
63
IGN
C
d
+
R
d
C
d
⋅
ln
⎛
⎜
⎝
. 4
RUN
1
F
5 .
63
PRE
. Each curve is related to a
⎞
⎟
⎠
and F
RUN
“
L6585DE
RUN
in