TDA8143 STMicroelectronics, TDA8143 Datasheet
TDA8143
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TDA8143 Summary of contents
Page 1
... SISTOR DURING TURN ON PERIOD SPECIAL REMOTE FUNCTION WITH DELAY TIME TO SWITCH THE OUTPUT ON DESCRIPTION The TDA8143 is a monolithic integrated circuit designed to drive the horizontal deflection power tran-sistor. The current source characteristic of this device is adapted to the non-linear current gain behaviour of the power transistor providing a minimum power dissipation ...
Page 2
... Ouptut Sense Input 5 Sense GND 6 C EXT 7 Special Remote/Standby 8 Control Input 9 Protection and Remote Standby Input BLOCK DIAGRAM 9 TDA8143 SYNC. DET. THERMAL PROTECTION SPECIAL REMOTE STANDBY 7 & 8 CONTROL IN ABSOLUTE MAXIMUM RATINGS Symbol V DC Supply Voltage CC I Output Current d P Power Dissipation ...
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... THB + 0.5 V – 190 250 3 2 2.8 5.8 6.4 5 – 0.2 V 0.8 0 limit. Note that due BU508 ON Normal Function BU508 OFF BU508 OFF Remote/Standby BU508 ON TDA8143 Max. Unit 200 mA 100 mA 2.2 A/V 2.2 A/V A/V 200 A 1 150 ...
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... Figure 2 : Large Screen Application +12V STANDBY COMPONENTS LIST FOR TYPICAL APPLICATION CRT 22"/26" 100 220 4/9 250 300 350 400 TDA8143 14"/20" 90 CRT 220 (mV (mV) Pin3 Pin5 450 500 550 600 650 OUT R O BU508 ...
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... system. The new approach, using the TDA8143, over- comes these restrictions by means of a feedback principle. As shown in Figure 4, at each instant of time the ideal base current of the power transistor results from its collector current divided by such current gain which ensure the saturation ; thus the required ...
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... CONTROL INPUT CIRCUIT DESCRIPTION Figure 6 shows the block diagram of the TDA8143, the circuit consists of an input transconductance amplifier composed by Q1, Q2, Q3 and Q4. The symmetrical output current is fed into the load resistor R1 and R2 ; the two amplifiers V1 and V2 realize a floating voltage to current converter which can drive 1 ...
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... STANDBY Figure 7 is shown the application diagram of the TDA8143, the few external component and the automatic handling possibility ensures a lower ap- plication cost versus the conventional approach shown in Figure 3. In Figure 8 is shown the currents and voltage waveforms of the driver circuit of Figure ...
Page 8
... TDA8143 Figure 7 : Integrated Horizontal Driver TDA8143 DRIVING CIRCUIT Figure 8 : Signal Diagrams of the Driver Circuits 8/9 R 100 F 220 4.7 5 47nF 1nF HORIZONTAL TRANSFORMER YOKE DEFLECTION CIRCUIT 0.15 ...
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... C system, is granted provided that the system conforms to 2 the I C Standard Specifications as defined by Philips. TDA8143 Inches Min. Typ. 0.280 0.106 0.118 0.976 0.020 0.033 0.063 0.130 0.017 0.052 0.835 0.571 ...