NTE NTE7083

NTE7083
Integrated Circuit
Vertical Deflection Circuit for
Monitor Applications
Description:
The NTE7083 is an integrated circuit in a 13–Lead Staggered SIP type package designed for vertical
deflection primarily in monitors and TV receivers.
Features:
D Fully Integrated, Few External Components
D RC Oscillator with Wide Sync Range
D Guard Circuit for Screen Protection
D Synchronization by Positive or Negative
Going Sync Pulse
D
D
D
D
Preamplifier
Flyback Generator
Internal Voltage Stabilizer
Dual Frequency Criterion for Automatic
Amplitude Switch–Over
Absolute Maximum Ratings:
Parameter
Voltages
Supply Voltages (VP)
Currents
Symbol
Min
Max
Unit
V2
0
6
V
V11
0
24
V
V12
0
6
V
V13
0
50
V
V10
0
50
V
V9
0
50
V
V7
0
60
V
V6
0
60
V
V5
0
6
V
V4
0
24
V
V3
–0.7
6
V
I1
0
–1
mA
I3
+3
–10
mA
I4
0
–5
mA
I9
–1.5
+1.5
A
I11
–0.1
+3.0
mA
I6, I7, I8
Test Conditions
Note 1
Note 1. I6, I7, and I8 are limited by SOAR protection circuit that ensures that a short–circuit between
the output Pin7 and supply voltage or GND does not destroy the output stage. A short circuit
may be soldered into the printed circuit board or may sometimes (non–periodically) occur
in the applied circuit.
Absolute Maximum Ratings (Cont’d):
Parameter
Symbol
Test Conditions
Min
Max
Unit
–25
+150
°C
Storage Temperature Range
Tstg
Operating Ambient Temperature Range
TA
Note 2
–20
+70
°C
TJmax
Note 3
–
+150
°C
Ptot
Note 2
–
–
W
ESO Stability
VESO
Note 4
–2000
+2000
V
Thermal Resistance, Junction–to–Ambient
RthJA
–
20
K/W
RthJMB
–
5
K/W
Maximum Junction Temperature
Total Power Dissipation
Thermal Resistance, Junction–to–Mounting
Base
Note 2. The maximum value to the operating ambient temperature range and the power dissipation
depends on the heatsink.
Note 3. Internally liminted by thermal protection: switching temperature point at TJ = +150°C ±8°C.
Note 4. Human body model: 1.5kΩ, 100pF, 5 pulses.
Electrical Characteristics: (All voltages are measured to VGND (Pin8), TA = +25°C, VP = +23V
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage Range (Pin10)
VP
10
–
45
V
Supply Voltage Range (Pin6)
VP
10
–
30
V
Supply Current
I10
V10 = 25V, V5 = 3V without load
–
12
–
mA
Supply Current
I6
V6 = 25V, V5 = 1V without load
–
20
–
mA
Supply Current
I6
V6 = 25V, V5 = 3V withput load
–
5
–
mA
Minimum Output Voltage
V7
I7 = 1A
–
1.40
1.65
V
Maximum Output Voltage
V7
I7 = 1A
V6 –2.3
V6 –2.0
–
V
Output Voltage During Flyback
V9
I9 = –1A
–
V10 –2.2
–
V
Output Current
I7
–
–
±1.3
A
Output Current
I8
–
–
±1.3
A
Preamplifier Input Current
I5
–
–0.1
–
µA
Stabilized Voltage
V1
6.1
6.8
7.3
V
Blanking Pulse Output Voltage
V3
–
5.7
–
V
Blanking Pulse Output Resistance
R3
–
300
–
Ω
Blanking Pulse Output Current
I3
0
–
–3
mA
Blanking Pulse Duration
tbl
640
680
730
µs
Output Voltage Ramp Generator
V11
0.3
–
20
V
Output Current Ramp Generator
I11
–2
–
15 x 103
µA
Output Voltage Frequency Detector
V13
Lower Frequency I13 = 1mA
–
–
1.0
V
Leakage Current Frequency
Detector
I13
Higher Frequency V13 = 50V
–
–
1.0
µA
Output Voltage Buffer Stage
V4
0
–
20
V
Output Current Buffer Stage
I4
–
–
–4.0
mA
Synchronizing Input Voltage
V3
Positive Sync
1.0
–
6.0
V
Synchronizing Input Voltage
V3
Negative Sync
–0.5
–
–0.7
V
R = 100Ω, C = 10pF (Pin12)
Electrical Characteristics (Cont’d): (All voltages are measured to VGND (Pin8), TA = +25°C,
VP = +23V unless otherwise specified)
Parameter
Symbol
Tolerance of Free Running
Oscillator
Test Conditions
Without Sync
Min
Typ
Max
Unit
–3.0
–
+3.0
%
Oscillator Temperature
Dependency
∆f/f /
∆TC
TA = +20° to +100°C
–
10–4
–
K–1
Oscillator Voltage Dependency
∆f/f /
∆VP
VP = 10V to 30V
–
4 x 104
–
K–1
1:2.9
1:3
–
Synchronizing Ratio
fO / fsync
Pin Connection Diagram
(Front View)
13 FRQC
12 BPDU
11 SGEN
10 VP
9 CFLY
8 GND
7 OUTPUTP
6 PSUP
5 PREI
4 SOUT
3 SYBO
2 OSCC
1 OSCR
.961 (24.4)
.185 (4.7)
.128
(3.28)
1
.488
(12.4)
.669
(17.0)
13
.630
(16.0)
.067 (1.7)
.200 (5.08)
.170 (4.32)