參數(shù)資料
型號(hào): ML4826IP-1
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: PFC and Dual Output PWM Controller Combo
中文描述: PFC和雙輸出PWM控制器組合
文件頁(yè)數(shù): 6/16頁(yè)
文件大?。?/td> 296K
代理商: ML4826IP-1
ML4826
6
TYPICAL PERFORMANCE CHARACTERISTICS
Voltage Error Amplifier (VEA) Transconductance (g
m
)
Current Error Amplifier (IEA) Transconductance (g
m
)
Variable Gain Control Transfer Characteristic
Figure 1. PFC Section Block Diagram.
250
200
150
100
50
0
T
VFB (V)
0
5
3
1
4
2
250
200
150
100
50
0
-500
T
IEA Input Voltage (mV)
500
0
400
300
200
100
0
V
VRMS (mV)
0
5
3
1
4
2
19
VEAO
IEAO
VFB
IAC
VRMS
ISENSE
RAMP 1
OSCILLATOR
OVP
+
PFC ILIMIT
VREF
2.5V
-
-
+
20
2
4
3
7.5V
REFERENCE
18
VCC
17
VCCZ
VEA
8
-
+
IEA
1
+
-
+
-
PFC OUT
15
S
R
Q
Q
S
R
Q
Q
2.7V
-1V
RTCT
7
GAIN
MODULATOR
x2
3.5k
3.5k
13.5V
8V
UVLO
VCCZ
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