L6564D STMicroelectronics, L6564D Datasheet - Page 21
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
L6564D
Manufacturer Part Number
L6564D
Description
IC PFC CTRLR TRANSITION 10SSOP
Manufacturer
STMicroelectronics
Datasheet
1.L6564DTR.pdf
(33 pages)
Specifications of L6564D
Mode
Discontinuous (Transition)
Frequency - Switching
1MHz
Current - Startup
90µA
Voltage - Supply
10.3 V ~ 22.5 V
Operating Temperature
-25°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
10-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
L6564
L6564
L6564
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
L6564D
Manufacturer:
STMicroelectronics
Quantity:
480
Part Number:
L6564D
Manufacturer:
ST
Quantity:
20 000
Part Number:
L6564DTR
Manufacturer:
ST
Quantity:
20 000
L6564
The twice-mains-frequency (2
peak amplitude that, with good approximation, is given by:
where f
ripple, related to the amplitude of its 2
Figure 29
amount of maximum desired 3rd harmonic distortion. Note that there is a minimum value for
the time constant R
occur. In fact, the twice-mains-frequency ripple across C
must be lower than the minimum line drop detection threshold (ΔV
Therefore:
Always connect RFF and CFF to the pin, the IC will not work properly if the pin is either left
floating or connected directly to ground.
Figure 29. R
R
FF
· C
L
FF
is the line frequency. The amount of 3rd harmonic distortion introduced by this
shows a diagram that helps choose the time constant R
[s]
current
0.01
FF
0.1
10
1
·C
0.1
FF
FF
as a function of 3rd harmonic distortion introduced in the input
· C
FF
below which improper activation of the VFF fast discharge may
•
Doc ID 16202 Rev 2
f
L
R
) ripple appearing across C
FF
f = 60 Hz
Δ
⋅
L
D
C
V
3
•
FF
FF
f
%
L
component, will be:
>
=
=
1
2
2
D %
+
V
2
π
3
1
Δ
f 4
MULTpk
V
f
L
V
100
L
MULTpk
R
f 4
VFF
R
FF
L
FF
f = 50 Hz
_
L
C
_
C
min
_
min
FF
max
FF
FF
−
1
under steady state conditions
FF
is triangular with a peak-to-
FF
FF_min
Application information
·C
FF
= 40 mV).
10
based on the
21/33