Datasheet for Ic-vertical Defl Circuit

Datasheet for Ic-vertical Defl Circuit
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 = +25°C 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 +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Thermal Resistance, Junction–to–Case, RtnJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4°C/W
Operating Supply Voltage Conditions: (TA = +25°C unless otherwise specified)
Driver Supply Voltage, +VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V to 14V
Pump–Up Supply Voltage, +VCC7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V to 27V
Recommended Operating Conditions: (TA = +25°C 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 = +25°C, +VCC1 = 12V, +VCC7 = 24V unless otherwise specified)
Parameter
Symbol
Min
Typ
Max
Unit
ICC1
1.8
2.8
3.8
mA
Trigger Input Threshold Voltage
V2
2.8
3.1
3.4
V
Vertical Size Control Pin Voltage
V3
5.9
6.1
6.3
V
Ramp Waveform Shape Start Voltage
VRamp
4.7
5.0
5.3
V
Pump–Up Charge Saturation Voltage
VS8–10
–
–
1.5
V
Pump–Up Discharge Saturation Voltage
VS7–8
I = 900mA
–
–
3.0
V
Deflection Output Saturation Voltage, Lower
VS11–10 I = 900mA
–
–
1.2
V
Deflection Output Saturation Voltage, Upper
VS12–11 I = 900mA
–
–
3.2
V
8
18
32
mA
–
59
–
dB
Driver Power Supply Quiescent Current
Test Conditions
Idling Current
Voltage Gain
GVO
f = 1kHz
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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