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| NTE1855 Integrated Circuit Vertical Deflection Output Circuit w/Driver Circuit for TV Monitor Description: The NTE1855 is an integrated circuit in a 13-Lead SIP type package that contains the vertical deflection output circuit with a driver for small-aperture (maximum deflection current 1.8Ap-p) color/B & W TV, monitor/display use. This device has such features as greatly reduced number of external parts and low power dissipation. Since both DC feedback and AC feedback can be provided inside the IC, it is easy to design the vertical deflection circuit. Features: D Low Power Dissipation due to On-Chip Pump-Up Circuit D On-Chip 50/60Hz Vertical Size Control Circuit D On-Chip Driver Circuit D Vertical Output Circuit D On-Chip Thermal Protection Circuit D Minimum Number of External Parts Required Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Driver Power Supply Voltage, +VCC1max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Pump-Up Power Supply Voltage, +VCC7max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Output Power Supply Voltage, +VCC12max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62V Deflection Output Current, IDEF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -1.5 to +1.5AP-O Allowable Power Dissipation (With Infinite Heat Sink), PDmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8W Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +85C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Thermal Resistance, Junction-to-Case, RtnJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4C/W Operating Supply Voltage Conditions: (TA = +25C unless otherwise specified) Driver Supply Voltage, +VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V to 14V Pump-Up Supply Voltage, +VCC7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V to 27V Recommended Operating Conditions: (TA = +25C unless otherwise specified) Driver Supply Voltage, +VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V Pump-Up Supply Voltage +VCC7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V Deflection Output Current, I11p-p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 1.8AP-P Electrical Characteristics: (TA = +25C, +VCC1 = 12V, +VCC7 = 24V unless otherwise specified) Parameter Driver Power Supply Quiescent Current Trigger Input Threshold Voltage Vertical Size Control Pin Voltage Ramp Waveform Shape Start Voltage Pump-Up Charge Saturation Voltage Pump-Up Discharge Saturation Voltage Deflection Output Saturation Voltage, Lower Deflection Output Saturation Voltage, Upper Idling Current Voltage Gain GVO f = 1kHz Symbol ICC1 V2 V3 VRamp VS8-10 VS7-8 I = 900mA VS11-10 I = 900mA VS12-11 I = 900mA Test Conditions Min 1.8 2.8 5.9 4.7 - - - - 8 - Typ 2.8 3.1 6.1 5.0 - - - - 18 59 Max 3.8 3.4 6.3 5.3 1.5 3.0 1.2 3.2 32 - Unit mA V V V V V V V mA dB Pin Connection Diagram (Front View) 13 Ripple Filter 12 Power Supply for Vertical Output 11 Vertical Output 10 GND 9 OSC Blocking 8 Pump-Up Output 7 VCC7 6 AC/DC Feedback Input to Vertical Output Section 5 Ramp Waveform Generator 4 50/60Hz Vertical Size Control Signal Input 3 Vertical Height Control 2 Vertical Trigger Input 1 VCC1 1.010 (25.6) .134 (4.4) Dia .095 (2.4) .548 (13.9) .607 (15.4) 1 13 .178 (4.5) .079 (2.0) |
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