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ML4802IP Datasheet(PDF) 4 Page - Micro Linear Corporation

No. de pieza ML4802IP
Descripción Electrónicos  PFC/PWM Controller Combo with Green Mode
PDF  15 Pages
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Fabricante Electrónico  MICRO-LINEAR [Micro Linear Corporation]
Página de inicio  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4802IP Datasheet(HTML) 4 Page - Micro Linear Corporation

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ML4802
4
Datasheet
August 2000
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVP COMPARATOR
Threshold Voltage
2.65
2.75
2.85
V
Hysteresis
175
250
325
mV
PFC ILIMIT COMPARATOR
Threshold Voltage
–0.9
–1
–1.1
V
DPFC ILIMIT Threshold - Gain Modulator Output
120
220
mV
Delay to Output
150
300
ns
DC ILIMIT COMPARATOR
Threshold Voltage
1.4
1.5
1.6
V
Input Bias Current
±0.3
±1
µA
Delay to Output
150
300
ns
VIN OK COMPARATOR
Threshold Voltage
2.33
2.43
2.55
V
Hysteresis
0.8
1.0
1.2
V
GAIN MODULATOR
Gain (Note 3)
IAC = 100µA, VRMS = VFB = 0V
0.6
0.8
1.05
IAC = 50µA, VRMS = 1.2V, VFB = 0V
1.8
2
2.80
IAC = 50µA, VRMS = 1.8V, VFB = 0V
0.8
1
1.25
IAC = 100µA, VRMS = 3.3V, VFB = 0V
0.2
0.3
0.4
Bandwidth
IAC = 100µA
10
MHz
Output Voltage
IAC = 250µA, VRMS = 1.15V,
0.6
0.75
0.9
V
VFB = 0V
OSCILLATOR
Initial Accuracy
TA = 25ºC
188
200
212
kHz
Voltage Stability
11V < VCC < 16.5V
1
%
Temperature Stability
2%
Total Variation
Line, Temp
182
218
kHz
Ramp Valley to Peak Voltage
2.5
V
Dead Time
PFC Only
260
400
ns
CT Discharge Current
VRAMP 2 = 0V, VRAMP 1 = 2.5V
3.5
5.5
7.5
mA
GREEN MODE
VGMT-L
Green Mode Threshold Low
VGMT = VDC –VLS
70
275
mV
VGMT-H Green Mode Threshold High
VGMT = VDC –VLS
360
580
mV
VLS
Level Shift
1.25
V



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