7185

NTE7185
Integrated Circuit
Vertical Deflection Booster for
Monitors and High Performance TVs
Description:
The NTE7185 was designed for use in monitors and high performance televisions. This device can
handle flyback voltage up to 70V. More than this it is possible to have a flyback voltage which is more
than the double of the supply (Pin2). This allows to decrease the power consumption or to decrease
the flyback time for a given supply voltage.
Features:
D Power Amplifier
D Thermal Protection
D Output Current up to 3.0APP
D Flyback Voltage up to 70V (On Pin5)
D Suitable for DC Coupling Application
D External Flyback Supply
Absolute Maximum Ratings:
Supply Voltage (Pin2, Note 1), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Flyback Peak Voltage (Pin6, Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75V
Amplifier Input Voltage (Pin thru Pin7, Note 1) V1, V7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3V + VS
Maximum Output Peak Current (Note 2), Io . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Maximum Sink Current (t < 1ms), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Maximum Source Current (t < 1ms), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
ESD Susceptibility, VESD
Tool Model (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300V
Human Model (Note 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
Voltage Difference between Flyback Supply and Supply Voltage, V3 − V2 . . . . . . . . . . . . . . . . . . 50V
Minimum Voltage (Note 1), V3, V5, V6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.4V
Operating Ambient Temperature Range, Toper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +150°C
Junction Temperature, Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Maximum Thermal Resistance, Junction−to−Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3°C/W
Temperature for Thermal Shutdown, Tt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Hysteresis on Tt, ∆Tt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10°C
Recommeneded Maximum Junction Temperature, Tjr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120°C
Note
Note
Note
Note
1.
2.
3.
4.
Versus Pin4.
The output current can reach 4A peak for 10µs (up to 120Hz).
Equivalent to discharging a 200pF capacitor through a 0Ω series resistor.
Equivalent to discharging a 150pF capacitor through a 1.5Ω series resistor.
Electrical Characteristics: (VS = 35V, TA = 25°C, unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Operating Supply Voltage Range
VS
10
−
35
V
Operating Flyback Supply Voltage
V3M
VS
−
70
V
Quiescent Current (Pin2)
I2
I3 = 0, I5 = 0
−
10
20
mA
Quiescent Current (Pin6)
I6
I3 = 0, I5 = 0
−
25
35
mA
Max. Scanning Peak Output Current
Io
−
−
1.5
A
Amplifier Bias Current
I1
V1 = 20V, V7 = 21V
−
−0.4
−2
µA
Amplifier Bias Current
I7
V1 = 21V, V7 = 20V
−
−0.4
−2
µA
V10
−
0
7
mV
∆V10/dt
−
−10
−
µV/°C
Voltage Gain
GV
80
−
−
dB
Output Saturation Voltage to GND (Pin4)
V5L
I5 = 1.5A
−
1.0
2
V
Output Saturation Voltage to Supply (Pin6)
V5H
I5 = −1.5A
−
1.7
2.5
V
Diode Forward Voltage between Pin5 & Pin6
VD5 − 6
I5 = 1.5A
−
1.5
2.1
V
Diode Forward Voltage between Pin3 & Pin6
VD3−6
I3 = 1.5A
−
2.3
3
V
Voltage Drop between Pin3 & Pin6
(2nd part of flyback)
V3−6
I3 = −1.5A
−
4
5
V
Offset Voltage
Offset Drift versus Temperature
Pin Connection Diagram
(Front View)
T
A
B
7
Non−Inverting Input
6
Output Stage Supply
5
Output
4
GND
3
Flyback Supply
2
Supply Voltage
1
Inverting Input
.189 (4.8)
.054 (1.38)
.410 (10.42)
.237
(6.0)
.622
(15.8)
.152 (3.93)
Dia
1
.666
(16.9)
7
.300 (7.62)
.890
(22.6)