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參數(shù)資料
| 型號： | ML4841 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Variable Feedforward PFC/PWM Controller Combo(前饋可變PFC/PWM控制器組合芯片) |
| 中文描述： | 可變前饋式PFC / PWM控制器組合（前饋可變式PFC /脈寬調(diào)制控制器組合芯片） |
| 文件頁數(shù)： | 4/15頁 |
| 文件大小： | 149K |
| 代理商： | ML4841 |
ML4841
4
REV. 1.0 10/12/2000
ELECTRICAL CHARACTERISTICS
(Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
OVP COMPARATOR
Threshold Voltage
2.6
2.7
2.8
V
Hysteresis
70
95
125
mV
PFC I
LIMIT
COMPARATOR
Threshold Voltage
-0.8
-1.0
-1.15
V
Delay to Output
150
300
ns
DC I
LIMIT
COMPARATOR
Threshold Voltage
0.9
1.0
1.1
V
Input Bias Current
±0.3
±1
μA
DC I
LIMIT
Threshold - Variable Gain Output
100
190
mV
Delay to Output
150
300
ns
V
IN
OK COMPARATOR
Threshold Voltage
2.4
2.5
2.6
V
Hysteresis
0.8
1.0
1.2
V
VARIABLE GAIN CONTROL
Gain (Note 3)
I
AC
= 100μA, V
RMS
= V
FB
= 0V
0.35
0.50
0.65
I
AC
= 50μA, V
RMS
= 1.2V, V
FB
= 0V
1.15
1.65
2.15
I
AC
= 50μA, V
RMS
= 1.8V, V
FB
= 0V
0.52
0.74
0.96
I
AC
= 100μA, V
RMS
= 3.3V, V
FB
= 0V
0.14
0.20
0.26
Bandwidth
IAC = 100μA
10
MHz
Output Voltage
I
AC
= 250μA, V
RMS
= 1.15V,
V
FB
= 0V
0.74
0.82
0.90
V
OSCILLATOR
Initial Accuracy
T
A
= 25oC
188
200
212
kHz
Voltage Stability
V
CCZ
- 3V < V
CC
< V
CCZ
- 0.5V
1
%
Temperature Stability
2
%
Total Variation
Line, Temp
182
218
kHz
Ramp Valley to Peak Voltage
2.5
V
Dead Time
PFC Only
260
400
ns
C
T
Discharge Current
V
RAMP 2
= 0V, V
RAMP 1
= 2.5V
4.5
7.5
9.5
mA
REFERENCE
Output Voltage
T
A
= 25oC, I(V
REF
) = 1mA
7.4
7.5
7.6
V
Line Regulation
V
CCZ
- 3V < V
CC
< V
CCZ
- 0.5V
2
10
mV
Load Regulation
1mA < I(V
REF
) < 20mA
2
15
mV
Temperature Stability
0.4
%
Total Variation
Line, Load, Temp
7.25
7.65
V
Long Term Stability
T
J
= 125oC, 1000 Hours
5
25
mV
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4841CP | 功能描述:功率因數(shù)校正 IC PFC Controller PWM Combo RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| ML4841CP_Q | 功能描述:功率因數(shù)校正 IC PFC Controller PWM Combo RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| ML4841CS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Variable Feedforward PFC/PWM Controller Combo |
| ML4841IP | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Variable Feedforward PFC/PWM Controller Combo |
| ML4841IS | 制造商:MICRO-LINEAR 制造商全稱:MICRO-LINEAR 功能描述:Variable Feedforward PFC/PWM Controller Combo |
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