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MP1015
Full System
Precision CCFL Driver
Monolithic Power Systems
Absolute Maximum Ratings
Input Voltage (VBatt)
25V
IL, ISFB Input Voltages (VIL, VISFB)
+/-6V
VLFB Input Voltage (VVLFB)
-0.3 to 12V
Logic Input Voltages
-0.3 to 6.8V
Power Dissipation
1.0W
Operating Frequency
150KHz
Junction Temperature
150
°C
Lead Temperature (Solder)
260
°C
Storage Temperature
–55
°C to 150°C
Recommended Operating Conditions
Input Voltage (VBatt)
6 to 22V
Analog Brightness Voltage (VABrt)
0 to 1.9V
Digital Brightness Voltage (VDBrt)
0 to 1.8V
Enable (VEn)
0 to 5V
Operating Frequency (Typical)
60KHz
Ambient Operating Temperature
-20
°C to +85°C
Thermal Characteristics
Thermal resistance
θJA (TSSOP)
140
°C/W
Thermal resistance
θJA (TSSOPF)
110
°C/W
Electrical Characteristics (Unless otherwise specified VBatt=12V, TA=25°C)
Parameters
Symbol
Condition
Min
Typ
Max
Units
Reference Voltage
Output Voltage
VRef
IRef = 3mA
4.75
5.0
5.25
V
Reference Current
IRef
3.0
mA
Line Regulation
6.5V < VBatt< 22V
30
mV
Load Regulation
0 < IRef< 3.0mA
30
mV
Battery Supply
Supply Current (disabled)
IBatt
10
µA
Supply Current (enabled)
IBatt
6.0V < VBatt< 22V
1.6
2.5
mA
Shutdown Logic
Fault Timer Threshold
V(TH)FT
1.1
1.2
1.3
V
Fault Timer Sink Current
VVLFB>0, VISFB<1.2V
1
µA
Fault Timer Source Current
Open Lamp
VVLFB<0, VISFB<1.2V
1
µA
Secondary Overload
VISFB>1.2V
120
µA
Enable Voltage Low
V(L)En
0.5
V
Enable Voltage High
V(H)En
2.0
V
Output Drivers
Switch On Resistance
R(ON)OutL,OutR
(Note 1)
0.085
0.12
0.15
Ω
Short Circuit Current
ISC
4
A
Ton(min)
VComp=0V, VBatt=22V
435
550
ns
Ton(min)
VComp=0V, VBatt=6V
1750
2100
ns
Brightness Control
Sense full Brightness
VIL
VABrt= 2.0V
360
379
400
mV
Sense full Dim
VIL
VABrt= 0V
105
117
130
mV
Lamp Current regulation
7V < VBatt< 22V
2
5
%
Burst Oscillator Sink Current
IBosc
380
µA
Burst Oscillator Peak Voltage
VBosc
1.7
1.8
1.9
V
Digital Brightness Offset Voltage V(OS) DBrt
-50
5
50
mV
Fault Loop Control
Open Lamp Threshold
V(TH)VLFB
0
V
Secondary Current Threshold
V(TH)ISFB
1.2
V
Fault Mode Comp Current
IComp
VVLFB<0V, VISFB>1.2V
475
µA
Note 1: This parameter is guaranteed by design.
MP1015 Rev 2.7_03/25/03
www.monolithicpower.com
2
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