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ML4824 Datasheet(PDF) 4 Page - Micro Linear Corporation

Part # ML4824
Description  Power Factor Correction and PWM Controller Combo
PDF  16 Pages
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Manufacturer  MICRO-LINEAR [Micro Linear Corporation]
Direct Link  http://www.microlinear.com
Logo MICRO-LINEAR - Micro Linear Corporation

ML4824 Datasheet(HTML) 4 Page - Micro Linear Corporation

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ML4824
4
ELECTRICAL CHARACTERISTICS (Continued)
SMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVP COMPARATOR
Threshold Voltage
2.6
2.7
2.8
V
Hysteresis
80
115
150
mV
PFC ILIMIT COMPARATOR
Threshold Voltage
–0.8
–1.0
–1.15
V
∆(PFC ILIMIT VTH - Gain Modulator Output)
100
190
mV
Delay to Output
150
300
ns
DC ILIMIT COMPARATOR
Threshold Voltage
0.97
1.02
1.07
V
Input Bias Current
±0.3
±1
µA
Delay to Output
150
300
ns
VIN OK COMPARATOR
Threshold Voltage
2.4
2.5
2.6
V
Hysteresis
0.8
1.0
1.2
V
GAIN MODULATOR
Gain (Note 3)
IAC = 100µA, VRMS = VFB = 0V
0.36
0.55
0.66
IAC = 50µA, VRMS = 1.2V, VFB = 0V
1.20
1.80
2.24
IAC = 50µA, VRMS = 1.8V, VFB = 0V
0.55
0.80
1.01
IAC = 100µA, VRMS = 3.3V, VFB = 0V
0.14
0.20
0.26
Bandwidth
IAC = 100µA
10
MHz
Output Voltage
IAC = 250µA, VRMS = 1.15V,
0.74
0.82
0.90
V
VFB = 0V
OSCILLATOR
Initial Accuracy
TA = 25°C
71
76
81
kHz
Voltage Stability
VCCZ - 3V < VCC < VCCZ - 0.5V
1
%
Temperature Stability
2%
Total Variation
Line, Temp
68
84
kHz
Ramp Valley to Peak Voltage
2.5
V
Dead Time
PFC Only
270
370
470
ns
CT Discharge Current
VRAMP 2 = 0V, VRAMP 1 = 2.5V
4.5
7.5
9.5
mA
REFERENCE
Output Voltage
TA = 25°C, I(VREF) = 1mA
7.4
7.5
7.6
V
Line Regulation
VCCZ - 3V < VCC < VCCZ - 0.5V
2
10
mV
Load Regulation
1mA < I(VREF) < 20mA
2
15
mV
Temperature Stability
0.4
%
Total Variation
Line, Load, Temp
7.35
7.65
V
Long Term Stability
TJ = 125°C, 1000 Hours
5
25
mV



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