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ML4803 Folha de dados(PDF) 3 Page - Micro Linear Corporation

Nome de Peças ML4803
Descrição Electrónicos  8-Pin PFC and PWM Controller Combo
Download  13 Pages
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Fabricante Electrônico  MICRO-LINEAR [Micro Linear Corporation]
Página de início  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4803 Folha de dados(HTML) 3 Page - Micro Linear Corporation

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ML4803
3
February 1999
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are those values beyond which
the device could be permanently damaged. Absolute
maximum ratings are stress ratings only and functional
device operation is not implied.
ICC Current (average) ............................................. 40mA
VCC MAX ............................................................... 18.3V
ISENSE Voltage .................................................. -5V to 1V
Voltage on Any Other Pin ...... GND - 0.3V to VCC + 0.3V
Peak PFC OUT Current, Source or Sink ....................... 1A
Peak PWM OUT Current, Source or Sink ..................... 1A
PFC OUT, PWM OUT Energy Per Cycle .................. 1.5µJ
Junction Temperature .............................................. 150°C
Storage Temperature Range ..................... –65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................... 260°C
Thermal Resistance (
qJA)
Plastic DIP ..................................................... 110°C/W
Plastic SOIC ................................................... 160°C/W
OPERATING CONDITIONS
Temperature Range
ML4803CX-X ............................................. 0°C to 70°C
ML4803IX-X ............................................-40°C to 85°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VCC = 15V, TA = Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ONE-PIN ERROR AMPLIFIER
VEAO Output Current
TA = 25ºC, VEAO = 6V
33.5
35.0
36.5
µA
Line Regulation
10V < VCC < 15V, VEAO = 6V
0.1
0.3
µA
VCC OVP COMPARATOR
Threshold Voltage
TA = 0ºC to 70ºC
15.5
16.0
16.5
V
PFC ILIMIT COMPARATOR
Threshold Voltage
-0.9
-1
-1.15
V
Delay to Output
150
300
ns
DC ILIMIT COMPARATOR
Threshold Voltage
1.4
1.5
1.6
V
Delay to Output
150
300
ns
OSCILLATOR
Initial Accuracy
TA = 25°C
626774
kHz
Voltage Stability
10V < VCC < 15V
1
%
Temperature Stability
2%
Total Variation
Over Line and Temp
60
67
74.5
kHz
Dead Time
PFC Only
0.3
0.45
0.65
µs
PFC
Minimum Duty Cycle
VEAO > 7.0V,ISENSE = -0.2V
0
%
Maximum Duty Cycle
VEAO < 4.0V,ISENSE = 0V
90
95
%
Output Low Impedance
8
15
W
Output Low Voltage
IOUT = -100mA
0.8
1.5
V
IOUT = –10mA, VCC = 8V
0.7
1.5
V


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