NTE NTE1754 Datasheet

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:

Output Voltage, V
Supply Voltage, V

5–4
9–4

Supply Voltage Output Stage, V
Input Voltage, V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–2

Input Voltage Switching Circuit, V
External Voltage at Pin7, V
Repetitive Peak Output Current, ±I
Non–Repetitive Peak Output Current (Note 1), ±I
Repetitive Peak Output Current of Flyback Generator, I

(Note 1)

7–2

6–4

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2

5RM

5SM

8RM

Non–Repetitive Peak Output Current of Flyback Generator (Note 1), ±I
Operating Ambient Temperature Range, T
Operating Junction Temperature Range (Note 2), T
Storage Temperature Range, T

stg

Thermal Resistance, Junction–to–Mounting Base, R

A

J

thJMB

Note 1. Pin2 and Pin4 are externally connected to GND.
Note 2. The output current at Pin5 should not exceed 2.5A.

8SM

0 to 60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to 40V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to 60V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0 to V
0 to V

9–4
9–4

0 to 5.6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.5A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

+1.5A, –1.6A. . . . . . . . . . . . . . . . . . . . . .

3A. . . . . . . . . . . . . . . . .

–25° to +60°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–25° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . .

–65° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 to 4.0°C/W. . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C, VCC (V

) = 26V, Note 1, Note 3 unless otherwise specified)

9–4

Parameter Symbol Test Conditions Min Typ Max Unit

Supply

Supply Voltage, Pin9 V
Supply Voltage Output Stage V

9–4
6–4

Note 5 10 – 40 V

– – 60 V
Supply Current, Pin6 and Pin9 I6 + I9Note 6 35 55 85 mA
Quiescent Current I

4

25 40 65 mA

Variation of Quiescent Current with Temperature TC – –0.04 – mA/°C

Output Current

Output Current (Peak–to–Peak), Pin5 I
Output Current Flyback Generator, Pin8 +I

5(P–P)

8(P–P)

–I

8(P–P)

– 2.5 3.0 A

– 1.25 1.5 A

– 1.35 1.6 A

Output Voltage

Peak Voltage During Flyback V
Saturation Voltage to Supply V

V
V
V

Saturation Voltage to GND V

5–4
6–5(sat)I5
5–6(sat)I5
6–5(sat)I5
5–6(sat)I5
5–4(sat)I5

= –1.5A – 2.5 3.2 V
= 1.5A, Note7 – 2.5 3.2 V
= –1.2A – 2.2 2.7 V
= 1.2A, Note 7 – 2.3 2.8 V
= 1.2A – 2.2 2.7 V

– – 60 V

I5 = 1.5A – 2.5 3.2 V

Flyback Generator

Saturation Voltage V

9–8(sat)I8

V

8–9(sat)I8

V

9–8(sat)I8

V

8–9(sat)I8

Leakage Current at Pin8 –I
Flyback Generator Active If: V

8

5–9

= –1.6A – 1.6 2.1 V
= 1.5A, Note 7 – 2.3 3.0 V
= –1.3A – 1.4 1.9 V
= 1.2A, Note 7 – 2.2 2.7 V

– 5 100 µA
4 – – V

Input

Input Current, Pin1 I
Input Voltage During Scan, Pin1 V
Input Current During Scan, Pin3 I
Input Voltage During Scan, Pin3 V
Input Voltage During Flyback, Pin1 V
Input Voltage During Flyback, Pin3 V

1–2

3–2

1–2

3–2

I5 = 1.5A – 0.33 0.55 mA

1

– 2.35 3.0 V

Note 8 0.03 – – mA

3

Note 8 0.8 – V

– – 250 mV
– – 250 mV

9–4

V

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 V

is 13V and no load at Pin5.

5–4

Note 7. Duty cycle, d = 5% or d = 0.05
Note 8. When Pin3 is driven separately from Pin1.