uba20260 NXP Semiconductors, uba20260 Datasheet - Page 23

• Manufacturer Part Number: uba20260
• Description: 600 V Driver Ic For Step Dimmable Cfls
• Manufacturer: NXP Semiconductors

NXP Semiconductors
UBA20260
Objective data sheet
11.1.3 C
11.1.4 R
11.1.5 R
Where C
I
I
V
ph M
ph RMS
•
•
•
•
MDL
CF
SLS
MDL
 

f
f
f
bridge min
Maximum bridge frequency
Minimum bridge frequency with disabled boost
Minimum bridge frequency with enabled boost
MDL threshold voltage
bridge max
bridge bst
related frequency equations
related preheat current
related minimum dimming level
=
=


par

R

V
------------------- -

------------------------ -
R
MDL
ph SLS
R
V
SLS
= 4.7 pF and t
min
SLS

ph SLS


=

=


All information provided in this document is subject to legal disclaimers.

I
--------------------------------------------------------------------------- -
C
---------------------------
=
--------------------------------------------------------------------------- -
C
---------------------------
source MDL
I
I
CF

o CF
3
CF
o CF

--------------------------------------------------------------------------- -
C
---------------------------

I
+
CF
Rev. 1 — 9 September 2011
o bst
+
min


C
max
C
+
par
par
CF
dch
C

par


= 0.4 s.
0.5
V
0.5
V

th CF
th CF
0.5
V


th CF

max
max
max
+
+
t
t
dch
+
dch
t
dch
600 V driver IC for step dimmable CFLs
UBA20260
© NXP B.V. 2011. All rights reserved.
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