EVALED2000P STMicroelectronics, EVALED2000P Datasheet - Page 13
EVALED2000P
Manufacturer Part Number
EVALED2000P
Description
LED Lighting Development Tools LED2000 3A 850KHz 3.0V to 18V Eval BRD
Manufacturer
STMicroelectronics
Datasheet
1.EVALED2000P.pdf
(40 pages)
Specifications of EVALED2000P
Product Category
LED Lighting Development Tools
Rohs
yes
Product
Evaluation Boards
Operating Supply Voltage
3 V to 18 V
For Use With
LED2000
LED2000
6.3
Equation 2
Equation 3
where:
Equation 4
S
(V
harmonic oscillations at duty cycle over 50%.
The sampling effect contribution F
Equation 5
where:
Equation 6
and
Equation 7
Error amplifier compensation network
The LED2000 embeds (see
network which is effective in stabilizing the system in most application conditions.
n
PP
Q
P
represents the slope of the sensed inductor current, S
F
Z
S
n
P
S
m
H
=
e
n
=
peak-to-peak amplitude) that implements the slope compensation to avoid sub-
=
=
C
s
-------------------------------------------
R
=
=
----------------------------------- -
ESR
--------------------------------------------------------------- -
=
LOAD
V
V
------------------------------- -
=
1
pp
IN
f
------------------------------------------- -
1
SW
+
m
1
–
+
1
S
------ -
S
C
L
C
V
f
---------------------
e
n
OUT
SW
C
OUT
n
OUT
s
1
1
1 D
Q
–
P
+
R
+
m
------------------------------------------------ -
i
–
L
s
----- -
C
2
2
n
0.5
C
OUT
1 D
Figure
–
Doc ID 023432 Rev 3
–
f
SW
H
0.5
(s) is:
6) the error amplifier and a pre-defined compensation
e
the slope of the external ramp
Application notes
13/40