Datenblatt-Suchmaschine für elektronische Bauteile |
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TEA2037A Datenblatt(PDF) 5 Page - STMicroelectronics |
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TEA2037A Datenblatt(HTML) 5 Page - STMicroelectronics |
5 / 14 page 5/14 TEA2037A Table 12. Frame Output (Pin 8) Table 13. Flyback Generator (Pin 2 and 3) The TEA2037A performs all the video and power functions required to provide signals for the direct drive of the line darlington and frame yoke. It contains: – A shunt regulator – A synchronization separator – An integrated frame separator without external components – A saw-tooth generator for the frame – A power amplifier for direct drive of frame yoke (short circuit protected) – An open collector output for the line darlington drive – A line phase detector and a voltage control oscillator. The slice level of sync-separation is fixed by value of the external resistors R1 and R2. VR is an inter- nally fixed voltage. The sync-pulse allows the discharge of the capac- itor by a 2 x 1 current. A line sync-pulse is not able to discharge the capacitor under VZ/2. A frame sync pulse permits the complete discharge of the capacitor, so during the frame sync-pulse Q3 and Q4 provide current for the other parts of the circuit. Symbol Parameter Min. Typ. Max. Unit LV8A LV8B Saturation Voltage to Ground (V7 = 30V) I8 = 0.1 I8 = 1A 0.06 0.37 0.6 1 V V HV8A HV8B Saturation Voltage to V7 (V7 = 30V) I8 = –0.1 I8 = –1A 1.3 1.7 1.6 2.4 V V FV8A FV8B Saturation Voltage to V7 in Flyback Mode (V8 > V7) I8 = 0.1 I8 = 1A 1.6 2.5 2.1 4.5 V V Symbol Parameter Min. Typ. Max. Unit F2DA F2DB FSVA FSVB Flyback Transistor on (output = high state) (V2 = 30V) V3/2 with I3 → 2 = 0.1A I3 → 2 = 1A V2/3 with I3 → 2 = 0.1 I3 → 2 = 1A 1.5 3.0 0.8 2.2 2.1 4.5 1.1 4.5 V V V V Flyback Transistor off (output = V7 - 8V) (V7 = V2 = 30V) FCI Leakage Current Pin 2 170 µA |
Ähnliche Teilenummer - TEA2037A_04 |
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Ähnliche Beschreibung - TEA2037A_04 |
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