NTE1855
Integrated Circuit
Vertical Deflection Output Circuit
w
/Driver Circuit for TV Monitor
Description:
The NTE1855 is an integrated circuit in a 13鈥揕ead SIP type package that contains the vertical deflec-
tion output circuit with a driver for small鈥揳perture (maximum deflection current 1.8A
p鈥損
) 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鈥揅hip Pump鈥揢p Circuit
D
On鈥揅hip 50/60Hz Vertical Size Control Circuit
D
On鈥揅hip Driver Circuit
D
Vertical Output Circuit
D
On鈥揅hip Thermal Protection Circuit
D
Minimum Number of External Parts Required
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Driver Power Supply Voltage, +V
CC
1max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Pump鈥揢p Power Supply Voltage, +V
CC
7max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V
Output Power Supply Voltage, +V
CC
12max . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62V
Deflection Output Current, I
DEF
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5 to +1.5A
P鈥揙
Allowable Power Dissipation (With Infinite Heat Sink), P
D
max . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8W
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +85擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +150擄C
Thermal Resistance, Junction鈥搕o鈥揅ase, R
tnJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4擄C/W
Operating Supply Voltage Conditions:
(T
A
= +25擄C unless otherwise specified)
Driver Supply Voltage, +V
CC
1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V to 14V
Pump鈥揢p Supply Voltage, +V
CC
7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10V to 27V
Recommended Operating Conditions:
(T
A
= +25擄C unless otherwise specified)
Driver Supply Voltage, +V
CC
1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
Pump鈥揢p Supply Voltage +V
CC
7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V
Deflection Output Current, I
11p鈥損
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . up to 1.8A
P鈥揚
1
2
3
