MP1039 – FULL BRIDGE CCFL CONTROLLER
ELECTRICAL CHARACTERISTICS
(continued)
V
IN1
= V
IN2
= 17.5V, V
BRPLL
= V
SWPLL
= GND, T
A
= +25°C, unless otherwise noted.
Parameter
Lamp Frequency Sync
LSYNC Min Pulse Width
LSYNC Rate
(4)
LSYNC Pulse Amplitude
Brightness Control Range
DBRT Full Brightness
DBRT 10% Brightness
ABRT Full Scale
Burst Rate Generator
Source Current
Lower Threshold
Upper Threshold
Supply Current
Supply Current (Enabled)
Supply Current (Disabled)
Operating Frequency
Accuracy of f
0
Control Input Current
Frequency Set Voltage
Lamp Current Feedback
Magnitude
Sine Equivalent
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 (VCC1 and VCC2)
Voltage
Current
Note:
4) Guaranteed by design, not tested.
Symbol
Condition
Min
Typ
20
60
Max
Units
ns
KHz
V
V
V
V
t
LSYNC(MIN)
f
LSYNC
R3 = 100kΩ
V
LSYNC
V
DBRT, FULL
V
DBRT, 10%
V
ABRT
I
SRC(BRS)
V
V(BRS)
V
P(BRS)
I
VIN
I
VIN
f
0
I
SWPLL
V
SWSET
|V
LI
|
V
LI
V
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
ABRT
> 1.2V
V
LI
< 0V
V
BRS
= 2V
120
2.5
0.135
1.34
1.2
120
2.2
3.3
150
2.35
3.5
1.7
1
47
3
–
8
1.2
1.25
0.41
1.33
3
62
1.21
1.21
1.21
–
1
1
70
0.56
20
60
5.5
6.0
5
6.5
180
2.5
3.7
3
20
µA
V
V
mA
µA
KHz
%
µA
V
V
V
Vrms
%
kΩ
V
V
V
µA
µA
µA
V
µA
µA
V
mA
R3 = 100kΩ
1.10
1.18
1.30
1.32
1.16
1.16
1.16
1.26
1.26
1.26
End of Burst
MP1039 Rev. 1.1
9/24/2007
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2007 MPS. All Rights Reserved.
3
MPS [ MONOLITHIC POWER SYSTEMS ]
