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| www.fairchildsemi.com KA2142C Vertical Deflection Output Circuit Features * * * * * * High output current Pump - up circuit Low dissipation Minimum number of external parts required Direct drive to the deflectin coils Internal thermal shutdown circuit Description The KA2142C is a monolithic linear IC designed for color TV and monitor vertical deflection output. It is intended for direct drive of the deflection coils with a high efficiency. 10-SIP H/S Applications * Power Amplifier * Thermal Protection * Flyback Generator Internal Block Diagram Vcc(L) + + Vcc(H) 2 9 4 FLYBACK GENERATOR Sawtooth IN 1 Vref 10 + - PRE AMP DRIVE STAGE OUTPUT STAGE 6 THERMAL SHUTDOWN D.Y 5 + + Rev. 1.0.0 (c)2001 Fairchild Semiconductor Corporation KA2142C Pin Assignments C KA2142A 1 2 3 4 5 6 7 Pin Number 1 2 3 4 5 6 7 8 9 10 Symbol Vin ( - ) Vcc(L) F.G GND VO Vcc(H) Vin ( + ) I/O I I O O I I Pin Function Descrition Inverting Input Supply Voltage N.C. Flyback Generator Ground Output N.C. N.C. Output Stage Supply Voltage Non-Inverting Input 2 KA2142C Pin Definitions Pin Number Pin Name Waveform Equivalent Circuit vcc 1 Inverting Input 1 2 Voltage Supply DC - vCC 4 Flyback Generator 4 5 Ground DC - vCC 6 Output Voltage 6 9 Output Stage Voltage Supply Vs 2Vs - vcc 10 Non-Inverting Input DC 10 3 KA2142C Absolute Maximum Rating ( Ta = 25oC ) Parameter Supply Voltage Flyback Peak Voltage Flyback Generator Voltage Input Voltage Peak - to - Peak Output Current* Peak - to - Peak Flyback Current ( f = 50 or 60Hz, Tfb 1.5mS ) Total Power Dissipation ( Ta = 25oC ) Storage Temperature Range Operating Ambient Temperature * Maximum output peak to peak current in TV or Monitor set. Symbol Vcc(L) V6, V9 V6 V1, V10 Io(p-p) I4(p-p) PD Tstg Topt Value 35 70 35 V cc(L) - 0.5 3 3 15 -40 ~ +150 -25 ~ +70 Unit V V V V A A W o C oC Thermal Data Parameter Thermal Resistance Between Junction and Case Thermal Resistance Between Junction and Ambient Thermal Shut down Temperature Symbol Rth ( j - c ) Rth ( j - a) Ttsd Value 12 60 150 Unit oC/W o C/W o C 4 KA2142C Electrical Characteristic (Refer to the test circuit ,V cc(L)= 35V,unless otherwise specified) Parameter Supply Voltage Supply Quiescent Current Pin4 Saturation Voltage to Gnd Saturation Voltage to supply Saturation Voltage to ground Output Center Voltage Input Bias Current Symbol VCC(L) VCC(H) ICC(L) ICC(H) V4SAT VHSAT VLSAT VMID IBIAS I4 = 20mA I6 = -1.2A I6 = -0.7A I6 = 1.2A I6 = 0.7A R1=5.6K,Rfb=45K V1=V10=2V V1 = 1V, V10 = 2V Conditions Min. 15 15 Typ. 25 6 22 0.5 1.6 1.3 1 0.7 18 -0.1 Max. 35 70 16 36 1 2.2 1.8 1.4 1 -1 Unit V V mA mA V V V V V V A 5 KA2142C Typical Performance Characteristic Vs-V4L 1 0.8 3 2 I4-V4L V4L 0.4 0.2 0 0 10 20 30 40 V4L 1 0 0 20 40 60 80 100 0.6 VS Figure 1. Vs-V4L I4(mA) Figure 2. I4-V4L Isink-V6H 2.5 2 2 Isource-V6L V6H 1.5 1 0.5 0 0 0.4 0.8 1.2 1.6 2 V6L(V) 1.5 1 0.5 0 0 0.4 0.8 1.2 1.6 2 Isink(A) Figure 3. Isink-V6H Isource(A) Figure 4. Isource-V6L Vs-I2,I9 25 20 mA 15 10 5 0 0 20 30 40 V Figure 5. Vs-I2, I9 6 KA2142C DC Test Circuit KA2142C KA2142A 1 V1 SW1 2 3 4 5 6 V6 7 8 9 10 12 V2 + V4 19 V1 R1 12K C2 22p SW2 R4 10K C3 22p + V9 C1 22p V10 SW3 SW4 R6 0.1K V10 R2 5.6K R5 0.1K R3 39K R7 10K ITEM I2, I9 I1 V4L V6L V6H INPUT VOLTAGE (V) V1 1 3 3 1 V10 2 2 2 2 Vin1 Vin2 2 SW1 OFF OFF OFF OFF OFF SW2 ON OFF OFF OFF OFF SWITCH STATE SW3 OFF OFF OFF OFF OFF SW4 ON OFF OFF OFF OFF 7 KA2142C AC Test Circuit IN4001 VS + + 0.1uF 1000uF 220uF PIN2 Vref 6.8K PIN1 Vin PIN10 PIN9 PIN4 KA2142C KA2142A GND PIN6 D.Y Output 220n 150n 1.5 300 3.9K 3.9K + 3.3K 10uF + 2200uF 1 (7.5V) VCC 4 8 7 8 6 2 1 RA=2.7K VA=7.5V 1 KA551 + 3 KA358 4 2 10uF(60Hz) 5uF(12Hz Typical Application Circuit + 0.01 Vcc=25V R2 1.2 1W IN4001 1000F + 9 4 220F 35V 2 Vref 0.1F 15K Vin 10 KA2142C KA2142A 1 5 VOUT 6 0.15F 0.22F 1.5 330 2W V.D Y 470pF 3.9K 6.8K 0.33F + 22F 3.9K + 2200F 0.9 2W 8 KA2142C Mechanical Dimensions Package Dimensions in millimeters 10-SIP H/S 3.25 0.20 0.128 0.008 #1 1.50 ) 0.059 0.50 0.10 0.020 0.004 ( 25.75 0.10 1.013 0.004 26.05 MAX 1.026 #10 1.30 ( ) 0.051 2.54 0.100 1.30 0.10 0.051 0.004 1.00 0.20 0.039 0.008 7.00 0.30 0.276 0.012 8.90 0.20 0.350 0.008 13.65 0.30 0.537 0.012 16.80 MAX 0.661 0.50 0.10 0.020 0.004 1.65 0.10 0.065 0.004 3.80 0.20 0.150 0.008 23.86 0.20 0.939 0.008 9 KA2142C Ordering Information Product Number KA2142C Package 10-SIP H/S Operating Temperature -20oC ~ +70 oC 10 KA2142C 11 KA2142C DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. www.fairchildsemi.com 5/3/01 0.0m 001 Stock#DSxxxxxxxx 2001 Fairchild Semiconductor Corporation 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. |
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