NTE1754 Integrated Circuit Vertical Deflection Output Circuit Description: The NTE1754 is a full–performance vertical deflection output circuit in a 9–Lead SIP type package intended for direct drive of the deflection coils and it can be used for a wide range of 90° and 110° deflection systems. The NTE1754 is provided with a guard circuit which blanks the picture tube screen in case of absence of the deflection current. Features: D Direct Drive to the Deflection Coils D 90°and 110° Deflection System D Internal Blanking Guard Circuit D Internal Voltage Stabilizer Applications: D Video Monitors D TV Receivers Absolute Maximum Ratings: (Note 1) Output Voltage, V5–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 60V Supply Voltage, V9–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 40V Supply Voltage Output Stage, V6–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 60V Input Voltage, V1–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V9–4 Input Voltage Switching Circuit, V3–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V9–4 External Voltage at Pin7, V7–2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 5.6V Repetitive Peak Output Current, ±I5RM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Non–Repetitive Peak Output Current (Note 1), ±I5SM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A Repetitive Peak Output Current of Flyback Generator, I8RM . . . . . . . . . . . . . . . . . . . . . . +1.5A, –1.6A Non–Repetitive Peak Output Current of Flyback Generator (Note 1), ±I8SM . . . . . . . . . . . . . . . . . 3A Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +60°C Operating Junction Temperature Range (Note 2), TJ . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C Thermal Resistance, Junction–to–Mounting Base, RthJMB . . . . . . . . . . . . . . . . . . . . . 3.5 to 4.0°C/W Note 1. Pin2 and Pin4 are externally connected to GND. Note 2. The output current at Pin5 should not exceed 2.5A. Electrical Characteristics: (TA = +25°C, VCC (V9–4) = 26V, Note 1, Note 3 unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit 10 – 40 V – – 60 V 35 55 85 mA I4 25 40 65 mA TC – –0.04 – mA/°C Output Current (Peak–to–Peak), Pin5 I5(P–P) – 2.5 3.0 A Output Current Flyback Generator, Pin8 +I8(P–P) – 1.25 1.5 A –I8(P–P) – 1.35 1.6 A Peak Voltage During Flyback V5–4 – – 60 V Saturation Voltage to Supply V6–5(sat) I5 = –1.5A – 2.5 3.2 V V5–6(sat) I5 = 1.5A, Note7 – 2.5 3.2 V V6–5(sat) I5 = –1.2A – 2.2 2.7 V V5–6(sat) I5 = 1.2A, Note 7 – 2.3 2.8 V V5–4(sat) I5 = 1.2A – 2.2 2.7 V I5 = 1.5A – 2.5 3.2 V V9–8(sat) I8 = –1.6A – 1.6 2.1 V V8–9(sat) I8 = 1.5A, Note 7 – 2.3 3.0 V V9–8(sat) I8 = –1.3A – 1.4 1.9 V V8–9(sat) I8 = 1.2A, Note 7 – 2.2 2.7 V –I8 – 5 100 µA V5–9 4 – – V – 0.33 0.55 mA – 2.35 3.0 V Supply Supply Voltage, Pin9 V9–4 Supply Voltage Output Stage V6–4 Supply Current, Pin6 and Pin9 Quiescent Current Variation of Quiescent Current with Temperature I6 + I9 Note 5 Note 6 Output Current Output Voltage Saturation Voltage to GND Flyback Generator Saturation Voltage Leakage Current at Pin8 Flyback Generator Active If: Input Input Current, Pin1 I1 I5 = 1.5A Input Voltage During Scan, Pin1 V1–2 Input Current During Scan, Pin3 I3 Note 8 0.03 – – mA Input Voltage During Scan, Pin3 V3–2 Note 8 0.8 – V9–4 V Input Voltage During Flyback, Pin1 V1–2 – – 250 mV Input Voltage During Flyback, Pin3 V3–2 – – 250 mV Note 1. Pin2 and Pin4 are externally connected to GND. Note 3. Pin1 externally connedted to Pin3. Note 4. Non–repetitive duty factor 3.3%. Note 5. The maximum supply voltage should be chosen so that during flyback the voltage at Pin 5 does not exceed 60V. Note 6. When V5–4 is 13V and no load at Pin5. Note 7. Duty cycle, d = 5% or d = 0.05 Note 8. When Pin3 is driven separately from Pin1. Electrical Characteristics (Cont’d): (TA = +25°C, VCC (V9–4) = 26V, Note 1, Note 3 unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit RL = 100kΩ, Note 11 4.1 4.5 5.8 V IL = 0.5mA, Note 11 3.4 3.9 5.3 V 0.95 1.35 1.7 kΩ V Guard Circuit Output Voltage, Pin7 V7–2 Internal Series Resistance of Pin7 Ri7 Guard Circuit Activates V8–2 Note 9 – – 1.0 GO at 1kHz, Note 10 – 33 – –3dB, Note 12 – 60 – General Data Open Loop Gain Frequency Response Note Note Note Note 1. 3. 4. 5. Note 6. Note 7. Note 8. Note 9. Note10. Note 11. Note12. f kHz Pin2 and Pin4 are externally connected to GND. Pin1 externally connedted to Pin3. Non–repetitive duty factor 3.3%. The maximum supply voltage should be chosen so that during flyback the voltage at Pin 5 does not exceed 60V. When V5–4 is 13V and no load at Pin5. Duty cycle, d = 5% or d = 0.05 When Pin3 is driven separately from Pin1. During normal operation the voltage V8–2 may not be lower than 1.5V RL = 8Ω; IL = 125mARMS If guard circuit is active. With a 22pF capacitor between Pin1 and Pin5. Pin Connection Diagram (Front View) 9 VCC 8 Flyback Generator 7 Voltage Stabilizer 6 Output Stage Supply Input 5 Output 4 Output Stage GND 3 Switching Circuit 2 GND 1 Input .961 (24.4) .780 (19.8) .185 (4.7) .489 (12.4) 9 1 .079 (2.0) .674 (17.0) .079 (2.0) .100 (2.54)