MP1048 – FULL BRIDGE CCFL CONTROLLER
ELECTRICAL CHARACTERISTICS
(continued)
V
PRR
= V
PRL
= 17.5V, V
BRC
= V
LCC
= GND, T
A
= +25°C, unless otherwise noted.
Parameter
Supply Current
Supply Current (Enabled)
Supply Current (Disabled)
Operating Frequency
Accuracy of f
0
Frequency Set Voltage
Lamp Current Feedback
Magnitude
Accuracy
Input Resistance
Open Lamp Voltage Feedback
Threshold (Peak)
Secondary Peak Current
Threshold
Fault Timer
Threshold
Sink Current
Open Lamp Source Current
Secondary Over-Current Source
Current
Comp
Clamp Voltage
Reference Current
Decay Current
Output (VCCR and VCCL)
Voltage
Current
Symbol
I
PR
I
PR
f
0
V
LCS
|V
LI
|
V
LI
R
LI
V
TH(LV)
V
TH(SI)
V
t(FT)
I
SINK(FT)
I
SO(FT)+
I
SP(FT)+
V
COMP
I
COMP+
I
COMP-
V
CC
I
CC
V
ABRT
> 1.2V
V
ABRT
= 0V
V
LI
< 0V
1.15
1.15
1.15
Condition
Min
Typ
2.2
3
49
3
1.18
1.20
0.40
3
60
1.20
1.20
1.20
Max
3
25
53
8
1.23
1.266
0.45
Units
mA
µA
KHz
%
V
V
%
kΩ
1.25
1.25
1.25
V
V
V
µA
µA
µA
V
µA
µA
6.3
V
mA
R3 = 100kΩ
45
1.13
1.134
0.35
–
1
1
65
0.62
20
20
5.7
6.0
5
End of Burst
MP1048 Rev. 0.9
9/24/2007
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
3
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