參數(shù)資料
型號(hào)： ML4841CP
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： Variable Feedforward PFC/PWM Controller Combo
中文描述： 0.5 A POWER FACTOR CONTROLLER WITH POST REGULATOR, PDIP16
封裝： PLASTIC, DIP-16
文件頁(yè)數(shù)： 11/15頁(yè)
文件大?。?/td> 129K
代理商： ML4841CP
PRODUCT SPECIFICATION
ML4841
REV. 1.0.3 6/13/01
5
Notes
1. Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
2. Includes all bias currents to other circuits connected to the VFB pin.
3. Gain = K x 5.3V; K = (IGAINMOD - IOFFSET) x IAC x (VEAO - 1.5V)
-1.
Reference
Output Voltage
TA = 25°C, I(VREF) = 1mA
7.4
7.5
7.6
V
Line Regulation
VCCZ - 3V < VCC < VCCZ - 0.5V
2
10
mV
Load Regulation
1mA < I(VREF) < 20mA
2
15
mV
Temperature Stability
0.4
%
Total Variation
Line, Load, Temp
7.25
7.65
V
Long Term Stability
TJ = 125°C, 1000 Hours
5
25
mV
PFC
Minimum Duty Cycle
VIEAO > 6.7V
0
%
Maximum Duty Cycle
VIEAO < 1.2V
90
95
%
Output Low Voltage
IOUT = -20mA
0.4
0.8
V
IOUT = -100mA
0.7
2.0
V
IOUT = 10mA, VCC = 8V
0.8
1.5
V
Output High Voltage
IOUT = 20mA
10
10.5
V
IOUT = 100mA
9.5
10
V
Rise/Fall Time
CL = 1000pF
50
ns
PWM
DC
Duty Cycle Range
0-44
0-47
0-50
%
VOL
Output Low Voltage
IOUT = -20mA
0.4
0.8
V
IOUT = -100mA
0.7
2.0
V
IOUT = 10mA, VCC = 8V
0.8
1.5
V
VOH
Output High Voltage
IOUT = 20mA
10
10.5
V
IOUT = 100mA
9.5
10
V
Rise/Fall Time
CL = 1000pF
50
ns
Supply
VCCZ
Shunt Regulator Voltage
12.8
13.5
14.2
V
VCCZ Load Regulation
25mA < ICC < 55mA
±100
±200
mV
VCCZ Total Variation
Load, Temp
12.4
14.6
V
Start-up Current
VCC = 11.2V, CL = 0
0.7
1.0
mA
Operating Current
VCC < VCCZ - 0.5V, CL = 0
17
21
mA
Undervoltage Lockout
Threshold
VCCZ -
1.0
VCCZ -
0.7
VCCZ -
0.4
V
Undervoltage Lockout
Hysteresis
2.7
3.0
3.3
V
Electrical Characteristics (continued)
Unless otherwise specied, ICC = 25mA, RT = 23k
, RRAMP1 = 28.7k, CT = 400pF, CRAMP1 = 270pF, TA =
Operating Temperature Range (Note 1)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
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參數(shù)描述
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
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