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參數(shù)資料
| 型號： | ML4803CX-X |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 8-Pin PFC and PWM Controller Combo |
| 中文描述： | 8引腳PFC和PWM組合控制器 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大小： | 195K |
| 代理商： | ML4803CX-X |
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.
I
CC
Current (average) ............................................. 40mA
V
CC
MAX ............................................................... 18.3V
I
SENSE
Voltage.................................................. -5V to 1V
Voltage on Any Other Pin ...... GND - 0.3V to V
CC
+ 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 (
JA
)
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, V
CC
= 15V, T
A
= Operating Temperature Range (Note 1)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ONE-PIN ERROR AMPLIFIER
VEAO Output Current
T
A
= 25
o
C, V
EAO
= 6V
33.5
35.0
36.5
μA
Line Regulation
10V < V
CC
< 15V, V
EAO
= 6V
0.1
0.3
μA
V
CC
OVP COMPARATOR
Threshold Voltage
T
A
= 0
o
C to 70
o
C
15.5
16.0
16.5
V
PFC I
LIMIT
COMPARATOR
Threshold Voltage
-0.9
-1
-1.15
V
Delay to Output
150
300
ns
DC I
LIMIT
COMPARATOR
Threshold Voltage
1.4
1.5
1.6
V
Delay to Output
150
300
ns
OSCILLATOR
Initial Accuracy
T
A
= 25
°
C
62
67
74
kHz
Voltage Stability
10V < V
CC
< 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
V
EAO
> 7.0V,I
SENSE
= -0.2V
0
%
Maximum Duty Cycle
V
EAO
< 4.0V,I
SENSE
= 0V
90
95
%
Output Low Impedance
8
15
Output Low Voltage
I
OUT
= -100mA
0.8
1.5
V
I
OUT
=
–
10mA, V
CC
= 8V
0.7
1.5
V
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