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ML4827CS-2 数据表(PDF) 4 Page - Micro Linear Corporation

部件名 ML4827CS-2
功能描述  Fault-Protected PFC and PWM Controller Combo
PDF  16 Pages
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制造商  MICRO-LINEAR [Micro Linear Corporation]
网页  http://www.microlinear.com
标志 MICRO-LINEAR - Micro Linear Corporation

ML4827CS-2 数据表(HTML) 4 Page - Micro Linear Corporation

  ML4827CS-2 Datasheet HTML 1Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 2Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 3Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 4Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 5Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 6Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 7Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 8Page - Micro Linear Corporation ML4827CS-2 Datasheet HTML 9Page - Micro Linear Corporation Next Button
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ML4827
4
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
TRI-FAULT DETECT
Fault Detect HIGH
2.6
2.7
2.8
V
Time to Fault Detect HIGH
VFB = VFAULT DETECT LOW to VFB =OPEN
1nF from VFB to GND
1
2
ms
Fault Detect LOW
0.4
0.5
0.6
V
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
0.9
1.0
1.1
V
Input Bias Current
±0.3
±1
µA
Delay to Output
150
300
ns
VIN OK COMPARATOR
Threshold Voltage
2.45
2.55
2.65
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
75
80
85
kHz
Voltage Stability
VCCZ - 3V < VCC < VCCZ - 0.5V
1
%
Temperature Stability
2%
Total Variation
Line, Temp
72
88
kHz
Ramp Valley to Peak Voltage
2.5
V
Dead Time
PFC Only
450
600
750
ns
CT Discharge Current
VRAMP 2 = 0V, VRAMP 1 = 2.5V
4.5
7.5
9.5
mA



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