STEVAL-ILB008V1 STMicroelectronics, STEVAL-ILB008V1 Datasheet - Page 15
![BOARD EVAL BALLAST FOR L6585DE](/photos/37/56/375658/steval-ilb008v1_sml.jpg)
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
L6585DE
5.2
5.2.1
PFC section
TM PFC operation
The PFC stage contains all the features needed to implement a transition mode PFC
controller.
Figure 4.
The control loop can be implemented thanks to the high performance error amplifier and the
very precise internal voltage reference that fixes the non-inverting input of the E/A to 2.52 V
± 2 %.
The control loop reacts in order to bring the inverting input to the same voltage. Connecting
the high voltage rail to INV pin, by means of a voltage divider, the output voltage will be
easily set.
The output of the E/A can be used in order to compensate the control loop with an RC
network or, more often, with a simple capacitor connected between INV and COMP pin.
The output voltage of the E/A is also fed to the multiplier. This block multiplies the waveform
present at the MULT pin by the output of the E/A. The resulting voltage will be used as the
threshold for the current sense input. An internal clamp limits the threshold to a maximum
value equal to 1 V.
In
Figure 5.
Figure 5
the characteristic curves of the multiplier are reported.
PFC section
Multiplier
Application information
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