UTC KA7524
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
POWER FACTOR CONTROLLER
The UTC KA7524 provides the necessary features to
implement the Electronic BALLAST control and S.M.P.S
application for designing active power factor correction circuit
FEATURES
*Internal self-starting
*Micro power start up mode
*Included under voltage lockout circuit
*Internal 1% reference
*High output current: peak 500mA
DIP-8
BLOCK DIAGRAM
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R114-001,A
UTC KA7524
PARAMETER
Supply Voltage
Peak Driver Output Current
Detect Clamping Diode Current
Output Clamping Diode Current
Operating Temperature
Storage Temperature
LINEAR INTEGRATED CIRCUIT
SYMBOL
Vcc
Io(p)
Idet
Io(c.d)
Topr
Tstg
ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
VALUE
20
500
10
10
-45~65
-65~150
UNIT
V
mA
mA
mA
°C
°C
ELECTRICAL CHARACTERISTICS
(Ta=25°C)
(All voltage referenced to GND unless othrewise specified)
PARAMETER
Start Threshold Voltage
UV lockout Hysteresis
Supply Zener Voltage
Supply Current Section
Start-up Supply Current
Operating Supply
Current
Dynamic Operating
Current
Reference Section
Reference Voltage
Line Regulation
Load Regulation
Temperature Stability
Error Amplifier Section
Input Offset Voltage
Input Bias Current
Large Signal Open Loop
gain
Power Supply Rejection
Ratio
Output Current
Output Voltage range
Unity Gain Bandwidth
Phase Margin
SYMBOL
Vth(st)
Vths
Vz
Istart
Icc
Icc(d)
(note 1)
Vref
Vref
Vref
STt
Vio
Ibias
Gv
PSRR
Isource
Isink
Vo(p)
UBW
MPH
TEST CONDITIONS
MIN
9.2
1.8
TYP
10
2.0
17
MAX
10.8
2.2
UNIT
V
V
V
Under Voltage Lockout Section
Vcc<Vth
Vcc=12V,No load
Vcc=12V,f=50KHZ,
Cgs=1000pF
2.475
12V<Vcc<16V
0<Iref<2mA
0.25
6
10
0.5
12
20
mA
mA
mA
2.5
0.1
0.1
20
2.525
10
10
V
mV
mV
mV
-15
-1
60
60
2
-0.1
100
86
15
1
mV
µA
dB
dB
mA
-2
1.2
1.0
57
4
mA
V
MHZ
°C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R114-001,A
UTC KA7524
PARAMETER
Multiplier Section
M1 Input Voltage Range
M2 Input Voltage Range
Input Bias Current
Multiplier Gain
Multiplier Gain Stability
Current Sense Section
Input Voltage Threshold
Hysteresis
Input Low Clamp
Voltage
Input High Clamp
Voltage
Input Current
Input Clamp Diode
Current
Current Detect Section
Output Voltage(High)
Output Voltage(low)
Rising Time
Failing Time
Self-Start Section
Self Starting Time
NOTE:
tss
Vo(H)
Vo(L)
tr
tf
Ii
Icd
Vic(H)
Vth
Vths
Vic(L)
Vi(m1)
Vi(m2)
I
bias
Gv
STt
LINEAR INTEGRATED CIRCUIT
(continued)
ELECTRICAL CHARACTERISTICS
(Ta=25°C)
SYMBOL
TEST CONDITIONS
MIN
0
Vref
-2
TYP
MAX
2
Vref+1
UNIT
V
V
µA
/V
%/°C
-0.5
0.8
-0.2
2
Vi(m1)=0.5V,Vi(m2)=3V
1.0
Idet=0mA
Idet=3mA
0.8V<Vdet<6V
Vdet<0.9V,Vdet>6V
6.1
1.3
200
1.6
0.95
V
mV
V
V
µA
7.1
5
3
mA
Io=-10mA,Vcc=12V
Io=10mA,Vcc=12V
C
L
=1000pF
C
L
=1000pF
7
9
0.8
100
90
1.8
200
200
V
V
ns
ns
µs
12
1.Reference can not be tested on the PKG
2.Gv=Vo(m)/(Vi(m1)*(Vi(m2)-Vref))
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R114-001,A
UTC KA7524
APPLICATION CIRCUIT
2A
H
L1
TNR
F.G
C1
C2
C4
N
C3
LINEAR INTEGRATED CIRCUIT
NTC
D7
BDI
Q3
D5
D3
T2
R17
LAMP TUBE 1
LAMP TUBE 1
C14
R16
R14
L2
L3
R1 R3 R4
R5
D1
C5
T1
D2
D9
DIAC
R13
C8
R7
R8
R10
C9
R11
C10
R9
R12
VR1
C11
T2
R18
D4
R19
T2
Q1
R6
C12
C13
5
7
Q2
D6
8
2
1
R2 C6 C7
3
6
4
D8
C15
PART LIST
Resistor
R1
R2
R3
R4
R5
R7
R8
R9
R10
R11
R12
R13
R14
R15
1.8M
10K
100K
3.3
¸
¦
22K
2.2K
2.2M
150K
330
¦ ¸
0.75
¸
¦
5.1K
1M
390K
3.9M
R16
R17
R18
R19
VR1
NTC
Capacitor
C1
C2
C3
C4
C5
C6
C7
C8
C9
0.1µF
0.1µF
4700pF
4700pF
0.1µF
0.01µF
100µF
0.1µF
3300pF
5.1Ω
27Ω
5.1Ω
27Ω
5K
10Ω
C10
C11
C12
C13
C14
C15
IC1
Q1
Q2
Q3
D1
D2
D3
D4
D5
47µF/450V
0.1µF
3300pF
3300pF
0.01µF
0.01µF
UTC KA7524
IRF830
2SC5039
2SC5039
1N4004
1N4937
1N4148
1N4148
FR107
L2
L1
T2
D6
D7
D8
BD1
TNR
DIAIC
Magnetics
T1
E1-25(PC30):P=70T
S=4T,Gap=0.5mm
D15(GP-5):
P=3T,S=13T
EE-25(Iron Power)
80mH
EI-25(PC30):
150T,Gap=0.4mm
FR107
FR107
FR107
PBP204
12G471
32V
Semiconductor
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R114-001,A
京公网安备 11010802033920号
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