ML4827CS-1 View Datasheet(PDF) - Micro Linear Corporation
Part Name
Description
MFG CO.
'ML4827CS-1' PDF : 16 Pages View PDF
ML4827
TYPICAL PERFORMANCE CHARACTERISTICS
250
250
200
200
150
150
100
100
50
50
0
0
1
2
3
4
5
VFB (V)
Voltage Error Amplifier (VEA) Transconductance (gm)
400
0
–500
0
500
IEA INPUT VOLTAGE (mV)
Current Error Amplifier (IEA) Transconductance (gm)
300
200
100
0
0
1
2
3
4
5
VRMS (mV)
Gain Modulator Transfer Characteristic (K)
16
VEAO
1
IEAO
VFB
15
2.5V
IAC
2
VRMS
4
ISENSE
3
VEA
–
+
3.5kΩ IEA
+
–
GAIN
MODULATOR
3.5kΩ
POWER FACTOR CORRECTOR
BROKEN WIRE
+ COMPARATOR
1V
–
2.7V
OVP
+
–
+
–1V +
–
–
PFC ILIMIT
RAMP 1
7
OSCILLATOR
2µA
VREF VCCZ
13.5V
13
VCC
7.5V
REFERENCE
VREF
14
SQ
RQ
SQ
RQ
PFC OUT
12
Figure 1. PFC Section Block Diagram.
6
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