UTC KA7524 LINEAR INTEGRATED CIRCUIT POWER FACTOR CONTROLLER DESCRIPTION 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 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS(Ta=25°C) SYMBOL VALUE Supply Voltage PARAMETER Vcc 20 UNIT V Peak Driver Output Current Io(p) 500 mA Detect Clamping Diode Current Idet 10 mA Output Clamping Diode Current Io(c.d) 10 mA Operating Temperature Topr -45~65 °C Storage Temperature Tstg -65~150 °C ELECTRICAL CHARACTERISTICS (Ta=25°C) (All voltage referenced to GND unless othrewise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT V Under Voltage Lockout Section Start Threshold Voltage Vth(st) 9.2 10 10.8 UV lockout Hysteresis Vths 1.8 2.0 2.2 Supply Zener Voltage Vz V 17 V Supply Current Section Start-up Supply Current Istart Vcc<Vth 0.25 0.5 mA Icc Vcc=12V,No load 6 12 mA Icc(d) Vcc=12V,f=50KHZ, 10 20 mA Operating Supply Current Dynamic Operating Current Reference Section Cgs=1000pF (note 1) Reference Voltage Vref 2.5 2.525 V Line Regulation Vref 12V<Vcc<16V 2.475 0.1 10 mV Load Regulation Vref 0<Iref<2mA 0.1 10 mV Temperature Stability STt 20 mV Error Amplifier Section Input Offset Voltage Input Bias Current Large Signal Open Loop Vio -15 Ibias -1 -0.1 15 mV 1 Gv 60 100 µA dB PSRR 60 86 dB Isource 2 gain Power Supply Rejection Ratio Output Current mA Isink -2 Vo(p) Unity Gain Bandwidth UBW 1.0 MHZ Phase Margin MPH 57 °C UTC 1.2 mA Output Voltage range 4 V UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R114-001,A UTC KA7524 LINEAR INTEGRATED CIRCUIT ELECTRICAL CHARACTERISTICS (Ta=25°C) PARAMETER SYMBOL (continued) TEST CONDITIONS MIN TYP MAX UNIT V Multiplier Section M1 Input Voltage Range Vi(m1) 0 2 M2 Input Voltage Range Vi(m2) Vref Vref+1 V Ibias -2 2 µA Input Bias Current Multiplier Gain Gv Multiplier Gain Stability Vi(m1)=0.5V,Vi(m2)=3V STt -0.5 0.8 /V -0.2 %/°C Current Sense Section Input Voltage Threshold Vth Hysteresis Vths Input Low Clamp 1.0 1.3 1.6 V 200 Vic(L) Idet=0mA Vic(H) Idet=3mA mV 0.95 V Voltage Input High Clamp 6.1 7.1 V Voltage Input Current µA Ii 0.8V<Vdet<6V Icd Vdet<0.9V,Vdet>6V Output Voltage(High) Vo(H) Io=-10mA,Vcc=12V Output Voltage(low) Vo(L) Io=10mA,Vcc=12V 0.8 1.8 V Rising Time tr CL=1000pF 100 200 ns Failing Time tf CL=1000pF 90 200 ns Input Clamp Diode 5 3 mA Current Current Detect Section 7 9 V Self-Start Section Self Starting Time tss µs 12 NOTE: 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 LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT NTC 2A H L1 C3 TNR D7 F.G C14 C2 C1 C4 BDI R16 Q3 D5 N R14 L2 L3 D3 T2 T1 R5 D1 DIAC R6 7 R13 C8 8 2 R2 C6 C7 D6 C10 R8 C11 R9 T2 D4 R19 R10 4 6 Q2 R18 R7 1 3 C13 Q1 5 C5 T2 D9 D2 C12 LAMP TUBE 1 R1 R3 R4 LAMP TUBE 1 R17 C9 D8 R12 R11 C15 VR1 PART LIST Resistor R16 5.1Ω C10 47µF/450V D6 FR107 1.8M R17 27Ω C11 0.1µF D7 FR107 R2 10K R18 5.1Ω C12 3300pF D8 FR107 R3 R4 100K 3.3 ¦ ¸ R19 27Ω C13 3300pF BD1 PBP204 VR1 5K C14 0.01µF TNR R5 22K NTC 10Ω C15 0.01µF DIAIC Semiconductor Magnetics R7 2.2K C1 0.1µF IC1 UTC KA7524 T1 R8 2.2M C2 0.1µF Q1 IRF830 R9 R10 150K 330¦ ¸ C3 4700pF Q2 2SC5039 C4 4700pF Q3 2SC5039 R11 0.75¦ ¸ C5 0.1µF D1 1N4004 R12 5.1K C6 0.01µF D2 1N4937 R13 1M C7 100µF D3 1N4148 R14 390K C8 0.1µF D4 1N4148 R15 3.9M C9 3300pF D5 FR107 R1 Capacitor UTC 12G471 32V E1-25(PC30):P=70T S=4T,Gap=0.5mm T2 D15(GP-5): P=3T,S=13T L1 EE-25(Iron Power) 80mH L2 EI-25(PC30): 150T,Gap=0.4mm UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R114-001,A