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參數(shù)資料
| 型號： | ML4823MJ |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High Frequency Power Supply Controller |
| 中文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 3/9頁 |
| 文件大?。?/td> | 121K |
| 代理商： | ML4823MJ |
ML4823
REV. 1.0 10/12/2000
3
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.
Supply Voltage (V
C
, V
CC
)...........................................30V
OUTPUT Current, Source or Sink
DC .......................................................................0.5A
Pulse (0.5μs) .........................................................2.0A
Analog Inputs
(INV, NI, RAMP, SS, I
LIM
).................. GND –0.3V to 6V
CLOCK OUTPUT Current ...................................... –5mA
F/A OUT Current ......................................................5mA
SOFT START Sink Current.......................................20mA
R
T
Charging Current ............................................... –5mA
OPERATING CONDITIONS
Temperature Range
ML4823C ..................................................0°C to 70°C
ML4823I................................................–40°C to 85°C
Junction Temperature ............................................ 125°C
Storage Temperature Range .....................–65°C to 150°C
Lead Temperature (Soldering 10 sec.) .................... 260°C
Thermal Resistance (
θ
JA
)
Plastic DIP .......................................................80°C/W
Plastic SOIC...................................................105°C/W
Plastic Chip Carrier (PLCC) ..............................78°C/W
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, R
T
= 3.65k
, C
T
= 1000pF, T
A
= Operating Temperature Range, V
CC
= 15V. (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Initial Accuracy
T
J
= 25°C,
10V
≤
V
CC
≤
30V,
360
400
440
kHz
Voltage Stability
0.2
2
%
Temperature Stability
5
%
Total Variation
Line, temp.
340
460
kHz
Clock Out High
3.9
4.5
V
Clock Out Low
2.3
2.9
V
Ramp Peak
2.6
2.8
3.0
V
Ramp Valley
0.7
1.0
1.25
V
Ramp Valley to Peak
1.6
1.8
2.0
V
REFERENCE
Output Voltage
T
J
= 25°C, I
O
= 1mA
10V
≤
V
CC
≤
30V
1mA
≤
I
O
≤
10mA
–40°C
≤
T
J
≤
150°C,
Line, load, temp.
5.025
5.10
5.175
V
Line Regulation
2
20
mV
Load Regulation
5
20
mV
Temperature Stability
0.2
0.4
%
Total Variation
4.975
5.225
V
Output Noise Voltage
10Hz to 10kHz
50
μV
Long Term Stability
T
J
= 125°C, 1000 hrs,
V
REF
= 0V
5
25
mV
Short Circuit Current
–15
–50
–100
mA
ERROR AMPLIFIER
Input Offset Voltage
±30
mV
Input Bias Current
0.6
3
μA
Input Offset Current
0.1
1
μA
Open Loop Gain
1
≤
V
O
≤
4V
50
95
dB
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