NTE NTE1858 Datasheet

NTE1858

Integrated Circuit

Vertical Deflection Circuit

Description:

The NTE1858 is a full performance and very efficient vertical deflection circuit in an 1 1–Lead SIP type
package intended for direct drive of a TV picture tube in Color and B & W television as well as in Moni­tor and Data Displays.

Features:

D Ramp Generator
D Independent Amplitude Adjustment
D Buffer Stage
D Power Amplifier
D Flyback Generator
D Internal Reference Voltage
D Thermal Protection

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V

Flyback Peak Voltage, V1, V
Trigger Input Voltage, V
Amplifier Input Voltage, V
Output Peak to Peak Current, I

S

2

3

9

O

GND to VS V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Non–Repetitive, t = 2ms 6A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

t > 10µs 4A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin11 DC Current (V1 < V10), I

11

100mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pin11 Peak–to–Peak Current (t8y < 1.5ms) 3A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total Power Dissipation (TA = +60°C), P
Junction Temperature Range, T
Ambient Temperature Range, T
Storage Temperature Range, T

j

A

stg

Thermal Resistance, Junction–to–Tab, R
Thermal Resistance, Junction–to–Ambient, R

tot

th(j–tab)

th(j–amb)

0° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–40° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

65V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

30W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DC Electrical Characteristics: (VS = 35V, TA = 25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Quiescent Current (Pin2) I
Quiescent Current (Pin10) I

2

10

Ramp Generator Bias Current –I
Ramp Generator Current –I
Ramp Generator Linearity dI7/I
Quiescent Output Voltage V

Out Saturation Voltage to GND V

Out Saturation Voltage to V

S

V

1L

1H

Reference Voltage V
Reference Voltage Drift

versus V

S

Reference Voltage Drift

versus I

4

dV4/dVSVS = 10V to 35V – 1 2 mV/V

dV4/dI4I4 = 10µA to 30µA – 1.5 2 mV/µA

Internal Reference Voltage V
Diode Forward Voltage V
Diode Forward Voltage V

D11–10IO

D1–2IO = 1.2A

Output Stage Open Loop Gain G
Saturation Voltage (V
Scanning Voltage (Pin11) V

) V

10–11

IS
11

Trigger Input Threshold V
Trigger Input Bias Current I
Trigger Input Width t

3
3

I1 = 0, I11 = 0 – 16 36 mA
I1 = 0, I11 = 0 – 15 30 mA
V7 = 0 – – 0.6 µA

7

V7 = 0, –I4 = 20µA 18.6 20 21.6 µA

7

V6 = 0 to 15V, –I4 = 20µA – 0.2 1 %

7

Ra = 30k, Rb = 10k,

1

17.0 17.8 18.6 V

VS = 35V
Ra = 6.8k, Rb = 10k,

7.2 7.6 7.8 V

VS = 15V
I1 = 0.5A – 0.5 1 V
I1 = 1.2A – 1 1.4 V

–I1 = 0.5A – 1.1 1.6 V
–I1 = 1.2A – 1.6 2.2 V
–I4 = 20µA 6.3 6.6 6.9 V

4

r

4.26 4.40 4.54 V

= 1.2A – 2.2 3.0 V

– 2.2 3.0 V

V

f = 100H

Z

– 60 – dB

–I11 = 1.2A – 1.5 2.5 V

I11 = 20mA – 1.7 3.0 V
Note 1 2.6 3.0 3.4 V

3

VIN = V3 • 0.2V – – 30 µA
Note 2 20 60 Th µs

AC Electrical Characteristics: (VS = 24V, TA = 25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Operating Supply Range V
Peak–to–Peak Operating Current Range I
Supply Current I
Flyback Voltage V
Sawtooth Pedestal Voltage V
Junction Temperature for Thermal

T

S

I

1
8

Iy = 2.4A
Iy = 2.4A

PP
PP

S

js

10 – 30 V

0.4 – 2.5 A

– 31.5 – mA
– 51 – V
– 1.85 – V
– 145 – °C

Shutdown

Note 1:The trigger input circuit can accept, optionally, positive and negative going input pulses.