
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 1.8A
p–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:
Low Power Dissipation due to On–Chip Pump–Up Circuit
On–Chip 50/60Hz Vertical Size Control Circuit
On–Chip Driver Circuit
Vertical Output Circuit
On–Chip Thermal Protection Circuit
Minimum Number of External Parts Required
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Driver Power Supply Voltage, +V
CC
1max
Pump–Up Power Supply Voltage, +V
CC
7max
Output Power Supply Voltage, +V
CC
12max
Deflection Output Current, I
DEF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation (With Infinite Heat Sink), P
D
max
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance, Junction–to–Case, R
tnJC
15V
30V
62V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–1.5 to +1.5A
P–O
8W
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20
°
to +85
°
C
–40
°
to +150
°
C
4
°
C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Supply Voltage Conditions:
(T
A
= +25
°
C unless otherwise specified)
Driver Supply Voltage, +V
CC
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump–Up Supply Voltage, +V
CC
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8V to 14V
10V to 27V
Recommended Operating Conditions:
(T
A
= +25
°
C unless otherwise specified)
Driver Supply Voltage, +V
CC
1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pump–Up Supply Voltage +V
CC
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deflection Output Current, I
11p–p
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12V
24V
up to 1.8A
P–P