ML4818 查看數據表（PDF） - Fairchild Semiconductor
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ML4818 Datasheet PDF : 13 Pages
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PRODUCT SPECIFICATION
ML4818
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.
Parameter
VCC
Output Driver Current, Source or Sink
DC
Pulse (0.5 µs)
Analog Inputs (CT, RAMP, ILIM, E/A OUT, INV, SOFT START,
RCRESET)
CLOCK Output Current (RT)
Error Amplifier Output Current (E/A OUT)
SOFT START Sink Current
Oscillator Charging Current (CT)
Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering 10 Sec)
Thermal Resistance (θJA)
Plastic Power DIP
Min.
–0.3
–65
Max.
30
0.5
1.5
6
–5
5
50
–5
150
150
260
40
Units
V
A
A
V
mA
mA
mA
mA
°C
°C
°C
°C/W
Operating Conditions
Parameter
Operating Temperature Range
Min.
0
Max.
70
Units
°C
Electrical Characteristics
Unless otherwise specified, VCC = 15V, RT = 12.7kΩ, CT = 250pF, RCLK = 3kΩ, RDELAY = 5kΩ, TA = Operating
Temperature Range (Note 1).
Parameter
Oscillator
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
CT Discharge Current
Clock Out High
Clock Out Low
Ramp Peak
Ramp Valley
Ramp Valley to Peak
Reference
Output Voltage
Line Regulation
Load Regulation
Conditions
TA=25°C
12V<VCC<25V
line, temp.
VCT=2V
TA=25°C, IO=1mA
12V<VCC<25V
1mA<IO<10mA
Min. Typ. Max. Units
410 450 525 kHz
-0.3
%/V
0.2
%
375
525 kHz
4.7 5.5 6.3 mA
2.4 3.1 6
V
0 0.4 V
0 4.1
V
1.5 5
V
0 2.6 5
V
4.95 5.0 5.05 V
-20
2
20 mV
-20
3
20 mV
REV. 1.0.3 6/21/01
3
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