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ML4827CS-2 数据表(PDF) 6 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) 6 Page - Micro Linear Corporation

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ML4827
6
TYPICAL PERFORMANCE CHARACTERISTICS
250
200
150
100
50
0
VFB (V)
05
3
14
2
250
200
150
100
50
0
IEA INPUT VOLTAGE (mV)
–500
500
0
400
300
200
100
0
VRMS (mV)
05
3
14
2
Voltage Error Amplifier (VEA) Transconductance (gm)
Current Error Amplifier (IEA) Transconductance (gm)
Gain Modulator Transfer Characteristic (K)
Figure 1. PFC Section Block Diagram.
VEAO
IEAO
VFB
IAC
VRMS
ISENSE
RAMP 1
OSCILLATOR
OVP
PFC ILIMIT
VREF
POWER FACTOR CORRECTOR
BROKEN WIRE
COMPARATOR
2.5V
+
–
–
+
7.5V
REFERENCE
VCC
VCCZ
VEA
+
–
IEA
+
–
+
–
+
–
PFC OUT
S
R
Q
Q
S
R
Q
Q
2.7V
–1V
1V
GAIN
MODULATOR
3.5k
Ω
3.5k
Ω
13.5V
14
12
15
2
4
3
7
16
1
13
VREF
2µA



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