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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=25C)
VALUE
20 500 10 10 -45~65 -65~150
UNIT
V mA mA mA C C
ELECTRICAL CHARACTERISTICS (Ta=25C)
(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
Vcc0.25 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 A 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) Ibias Gv STt
LINEAR INTEGRATED CIRCUIT
(continued)
ELECTRICAL CHARACTERISTICS (Ta=25C)
SYMBOL
TEST CONDITIONS
MIN
0 Vref -2
TYP
MAX
2 Vref+1
UNIT
V V A /V %/C
-0.5 0.8 -0.2
2
Vi(m1)=0.5V,Vi(m2)=3V
1.0 Idet=0mA Idet=3mA 0.8V6V 6.1
1.3 200
1.6 0.95
V mV V V A
7.1 5 3
mA
Io=-10mA,Vcc=12V Io=10mA,Vcc=12V CL=1000pF CL=1000pF
7
9 0.8 100 90 1.8 200 200
V V ns ns s
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 0.1F 0.1F 4700pF 4700pF 0.1F 0.01F 100F 0.1F 3300pF 5.1 27 5.1 27 5K 10 C10 C11 C12 C13 C14 C15 IC1 Q1 Q2 Q3 D1 D2 D3 D4 D5 47F/450V 0.1F 3300pF 3300pF 0.01F 0.01F 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

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