Vertical Deflection. NTE1855 Datasheet

NTE1855 Deflection. Datasheet pdf. Equivalent

Part NTE1855
Description Integrated Circuit Vertical Deflection
Feature NTE1855 Integrated Circuit Vertical Deflection Output Circuit w/Driver Circuit for TV Monitor Descri.
Manufacture NTE
Datasheet
Download NTE1855 Datasheet




NTE1855
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 deflec-
tion 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



NTE1855
Electrical Characteristics: (TA = +25°C, +VCC1 = 12V, +VCC7 = 24V unless otherwise specified)
Parameter
Symbol Test Conditions Min Typ Max Unit
Driver Power Supply Quiescent Current
Trigger Input Threshold Voltage
Vertical Size Control Pin Voltage
Ramp Waveform Shape Start Voltage
PumpUp Charge Saturation Voltage
PumpUp Discharge Saturation Voltage
Deflection Output Saturation Voltage, Lower
Deflection Output Saturation Voltage, Upper
Idling Current
ICC1
V2
V3
VRamp
VS810
VS78
VS1110
VS1211
I = 900mA
I = 900mA
I = 900mA
1.8 2.8 3.8 mA
2.8 3.1 3.4 V
5.9 6.1 6.3 V
4.7 5.0 5.3 V
– – 1.5 V
– – 3.0 V
– – 1.2 V
– – 3.2 V
8 18 32 mA
Voltage Gain
GVO f = 1kHz
59 dB
Pin Connection Diagram
(Front View)
13 Ripple Filter
12 Power Supply for Vertical Output
11 Vertical Output
10 GND
9 OSC Blocking
8 PumpUp 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







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