MP1011A
Cold Cathode Fluorescent Lamp Driver
Absolute Maximum Ratings:
Vcc
25 V
Power Dissipation
1.0 W
Logic Inputs
-0.7 V to 6.8V
Thermal resistance
140° C/W
Junction Temperature
150° C
Lead Temperature (Solder)
260° C
Operating Frequency
150KHz
Storage Temperature
–55° C to 150° C
Recommended Operating Conditions:
Input Voltage Vcc
Brightness Voltage
Enable
Operating Frequency
Operating Temperature
6.0V to 22V
0 to 2.0V
0 to 5.0 V
20KHz to 90KHz
-20° C to + 85° C
Electrical Characteristics
(Unless otherwise specified Vcc=12v, Ta=25° C)
Parameters
Reference Voltage
Output Voltage
Reference Current
Line Regulation
Load Regulation
Voltage Supply
Supply Current (quiescent)
Supply Current (operating)
Operating Range
Shutdown Logic
Thermal Shutdown
Open Lamp Detect
Enable Voltage Low
Enable Voltage High
Burst Voltage Low
Burst Voltage High
Output Drivers
On Resistance
Short Circuit Current
Operating Frequency
Zero-Crossing Voltage
Ton(min)
Ton(min)
Brightness Control
Sense Full Brightness
Sense Full Dim
Lamp Current Regulation
Symbol
Condition
Min
Typ
Max
Units
Vref
Iref
Iref=3mA
6.5V < VCC < 22 V
0 < Ire < 3.0 mA
4.85
5.1
5.35
3.0
30
30
V
mA
mV
mV
µA
mA
V
°C
V
V
V
V
V
Ω
A
KHz
mV
nS
nS
mV
mV
%
Icc (off)
Icc (on)
Vcc
6.0V < Vcc < 22V
(Note 2)
1.8
6.0
10
2.5
22
Vol
Vil
Vih
Vil
Vih
(Note 1)
1.0
2.0
145
1.2
1.4
0.6
0.8
2.4
Ron
Isc
Vzc
0.10
20
0
500
900
357
83
Vcomp=0V, Vcc = 22V
Vcomp=0V, Vcc = 6V
Vsense
Vsense
Vbright= 2.0V
Vbright= 0V
6.0v < Vcc < 22v
0.12
4
60
6
625
1200
375
92
2
0.15
90
10
750
1500
393
101
5
Note 1: This parameter is guaranteed by design.
Note 2: See Leakage Inductance Guide lines for Minimum Operating Voltage (Table 2).
MPS, Inc 3777 Stevens Creek Blvd.
Suite 400 Santa Clara, 95051-7364 USA
Tel (408) 243-0088, Fax (408) 243-0099
www.monolithicpower.com
Revision 1.7
April, 2001
2
MPS [ MONOLITHIC POWER SYSTEMS ]
