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ML4812 Scheda tecnica(PDF) 3 Page - Fairchild Semiconductor

Il numero della parte ML4812
Spiegazioni elettronici  Power Factor Controller
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

ML4812 Scheda tecnica(HTML) 3 Page - Fairchild Semiconductor

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ML4812
REV. 1.0 10/10/2000
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 Current (ICC) ............................................... 30mA
Output Current Source or Sink (OUT) DC ................ 1.0A
Output Energy (capacitive load per cycle) .................. 5
µJ
Gain Modulator ISINE Input (ISINE) ......................... 1.2mA
Error Amp Sink Current (EA OUT) .......................... 10mA
Oscillator Charge Current ........................................ 2mA
Analog Inputs (ISENSE, EA–, OVP) ............... –0.3V to 5.5V
Junction Temperature ............................................. 150
°C
Storage Temperature Range ..................... –65
°C to 150°C
Lead Temperature (soldering 10 sec.) ..................... 260
°C
Thermal Resistance (
θJA)
20-Pin PLCC .................................................... 60
°C/W
16-Pin PDIP .................................................... 65
°C/W
OPERATING CONDITIONS
Temperature Range
ML4812CX ................................................ 0
°C to 70°C
ML4812IX ............................................. –40
°C to 85°C
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, VCC = 15V , RT = 14kΩ, CT = 1000pF, TA = Operating Temperature Range (Notes 1, 2).
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OSCILLATOR
Initial Accuracy
TJ = 25°C
91
98
105
kHz
Voltage Stability
12V < VCC < 18V
0.3
%
Temperature Stability
2%
Total Variation
Line, temperature
90
108
kHz
Ramp Valley to Peak
3.3
V
RT Voltage
4.8
5.0
5.2
V
Discharge Current (RT open)
TJ = 25°C, VCT= 2V
7.8
8.4
9.0
mA
VCT = 2V
7.3
8.4
9.3
mA
Clock Out Voltage Low
RL = 16kΩ
0.2
0.5
V
Clock Out Voltage High
RL = 16kΩ
3.0
3.5
V
REFERENCE
Output Voltage
TJ = 25°C, IO = 1mA
4.95
5.00
5.05
V
Line Regulation
12V < VCC < 25V
2
20
mV
Load Regulation
1mA < IO < 20mA
2
20
mV
Temperature Stability
0.4
%
Total Variation
Line, load, temp.
4.9
5.1
V
Output Noise Voltage
10Hz to 10kHz
50
µV
Long Term Stability
TJ = 125°C, 1000 hours
5
25
mV
Short Circuit Current
VREF = 0V
–30
–85
–180
mA
ERROR AMPLIFIER
Input Offset Voltage
±15
mV
Input Bias Current
–0.1
–1.0
µA
Open Loop Gain
1 < VEA OUT < 5V
60
75
dB
PSRR
12V < VCC < 25V
60
75
dB
Output Sink Current
VEA OUT = 1.1V, VEA– = 6.2V
2
12
mA
Output Source Current
VEA OUT = 5.0V, VEA– = 4.8V
–0.5
–1.0
mA
Output High Voltage
IEA OUT = –0.5mA, VEA– = 4.8V
5.3
5.5
V
Output Low Voltage
IEA OUT = 1mA, VEA– = 6.2V
0.5
1.0
V
Unity Gain Bandwidth
1.0
MHz


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