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File name:TEA5101B_ds.pdf
[preview TEA5101B]
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Mfg:ST
Model:TEA5101B 🔎
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Descr:HV Video Ampl
Group:Electronics > Components
Uploaded:10-05-2005
User:mike_mihov
Multipart:No multipart

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File name TEA5101B_ds.pdf

TEA5101B RGB HIGH VOLTAGE VIDEO AMPLIFIER . . . . . . PRELIMINARY DATA BANDWIDTH : 10MHz TYPICAL RISE AND FALL TIME : 50ns TYPICAL CRT CATHODES CURRENT OUTPUTS FOR PARALLEL OR SEQUENTIAL CUT-OFF OR DRIVE ADJUSTMENT FLASHOVER PROTECTION POWER DISSIPATION : 3.5W ESD PROTECTED DESCRIPTION The TEA5101B includes three video amplifiers desi-gned with a high voltage DMOS/bipolar technology. It drives directly the three CRT cathodes. The device is protected against flashovers. Due to its three cathode current outputs, the TEA5101B can be used with both parallel and sequential sampling applications. PIN CONNECTIONS (top view) MULTIWATT 15 (Plastic Package) ORDER CODE : TEA5101B 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 BLUE FEEDBACK BLUE CATHODE CURRENT BLUE OUTPUT GREEN FEEDBACK GREEN CATHODE CURRENT GREEN OUTPUT RED FEEDBACK GROUND RED OUTPUT RED CATHODE CURRENT V DD HIGH VOLTAGE RED INPUT GREEN INPUT V CC LOW VOLTAGE BLUE INPUT Tab connected to Pin 8 5101B-01.EPS May 1996 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice. 1/6 TEA5101B PIN FUNCTION N° 1 2 3 4 5 6 Function Blue Input VCC Green Input Red Input VDD Red Cathode Current Description Input of the "blue" amplifier. It is a virtual ground with 3.8V bias voltage, 15 microamperes input bias current with 14k input resistance. Low voltage power supply, typically 12V. See Pin 1. See Pin 1. High voltage power supply, typically 200V. Provides the video processor with a copy of the DC current flowing into the red cathode, for automatic cut-off or gain adjustment. If this control is not used, Pin 6 must be grounded. Output driving the red cathode. Pin 7 is internally protected against CRT arc discharges by a diode limiting the output voltage to VDD. Also connected to the heatsink. Output driving the feedback resistor network for the red amplifier. See Pin 7. See Pin 6. See Pin 9. See Pin 6. See Pin 9. 5101B-01.TBL 7 8 9 10 11 12 13 14 15 Red Output Ground Red Feedback Green Output Green Cathode Current Green Feedback Blue Output Blue Cathode Current Blue Feedback See Pin 7. BLOCK DIAGRAM OF EACH CHANNEL V DD 15 (12, 9) 5 40k 13 20k (10, 7) 0.8k 14 (11, 6) 1k 2 1 (3, 4) 35 35 350 REFERENCE VOLTAGE 2/6 5101B-02.EPS GND 8 TEA5101B ABSOLUTE MAXIMUM RATINGS Symbol VDD VCC IO IO IF IF Ij Tj Toper Tstg Parameter Supply High Voltage Supply Low Voltage Output Current to VDD to Ground Output Current to VDD to Ground Input Current Junction Temperature Operating Ambient Temperature Storage Temperature Pin 5 Pin 2 Pins 7 - 10 - 13 Value 250 20 Protected 8 Pins 9 - 12 - 15 45 45 60 150 0 to 70 ­ 55 to + 150 mA mA mA °C °C °C Unit V V mA Pins 1 - 3 - 4 THERMAL DATA Max. Typ. 5101B-03.TBL 5101B-04.TBL Symbol Rth(j-c) R th(j-a) Parameter Maximum Junction Case Thermal Resistance Typical Junction Ambient Thermal Resistance Value 3 35 Unit °C/W °C/W ELECTRICAL CHARACTERISTICS Tamb = 25oC ; VCC = 12V ; VDD =

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