參數(shù)資料
型號(hào): KA7525B
廠商: FAIRCHILD SEMICONDUCTOR CORP
元件分類: 穩(wěn)壓器
英文描述: Power Factor Correction Controller
中文描述: 0.5 A POWER FACTOR CONTROLLER, PDIP8
封裝: DIP-8
文件頁數(shù): 3/18頁
文件大?。?/td> 480K
代理商: KA7525B
KA7525B
3
Internal Block Diagram
Absolute Maximum Ratings
Temperature Characteristics (0
°
C
Ta
125
°
C )
Parameter
Supply Voltage
Peak Drive Output Current
Driver Output Clamping Diodes
V
O
> V
CC
or V
O
< -0.3V
Detector Clamping Diodes
Error Amp, Multiplier and Comparator Input Voltage
Operating Temperature Range
Storage Temperature Range
Power Dissipation
Thermal Resistance (Junction-to-Air)
Symbol
V
CC
Ioh, IoI
Value
30
±500
Unit
V
mA
Iclamp
±
10
mA
Idet
Vin
Topr
Tstg
Pd
R
θ
ja
±
10
mA
V
°
C
°
C
W
°
C/W
-0.3 to 6
0 to 125
-65 to 150
0.8
100
Characteristics
Temperature Stability for Reference Voltage(Vref)
Temperature Stability for Multiplier Gain(K)
Symbol
Vref (Typ)
K/
T (Typ)
Value
20
-0.2
Unit
mV
%/
°
C
8
7
5
4
3
1
6
2
2.5V Ref
Internal
Bias
OUT
INV
EA OUT
GND
MULT
CS
Idet
Vcc
Timer R
R,C Filter
Vref
Vea(-)
Error Amp
Vm2
Vref ~ Vref+1V
Multiplier
0 ~2V
Vm1
Vmo
Drive
Output
Over Voltage
Protection
1.8V
+
-
Current Sense
Comparator
Vref
Zero Current
Detector
240mV
Vcc
1.8V
7.5V
1.24V
10V
36V
2.1V
+
_
+
_
-
+
+
_
+
_
UVLO
Q
R
S
K =
Vm1
×
(Vm2-Vref)
Pin4 Threshold(Vmo)
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