NTE7131
Integrated Circuit
DC鈥揅oupled Vertical Deflection Circuit
Description:
The NTE7131 is an integrated circuit in a 9鈥揕ead SIP type package designed for use in 90擄 and 110擄
color deflection systems for field frequencies of 50 to 120Hz. The circuit provides a DC driven vertical
deflection output circuit, operating as a highly efficient class G system.
Features:
D
Few External Components
D
Highly Efficient Fully DC鈥揅oupled Vertical Output Bridge Circuit
D
Vertical Flyback Switch
D
Guard Circuit
D
Protection Against:
Short鈥揅ircuit of the Output Pins (7 and 4)
Short鈥揅ircuit of the Output Pins to V
P
D
Temperature (Thermal) Protection
D
High EMC Immunity because of Common Mode Inputs
D
A Guard Signal in Zoom Mode
Absolute Maximum Ratings:
DC Supply
Supply Voltage, V
P
Non鈥揙perating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40V
Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25V
Flyback Supply Voltage, V
FB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50V
Vertical Circuit
Output Current (Peak鈥搕o鈥揚eak Value, Note 1), I
O(p鈥損)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A
Output Voltage (Pin7), V
O(A)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52V
Flyback Switch
Peak Output Current, I
M
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵1.5A
Thermal Data
Virtual Junction Temperature, T
VJ
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150擄C
Operating Ambient Temperatrure Range, T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +75擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Thermal Resistance, Virtual Junction鈥搕o鈥揂mbient (In Free Air), R
thVJA
. . . . . . . . . . . . . . . . . 40K/W
Thermal Resistance, Virtual Junction鈥搕o鈥揅ase, R
thVJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4K/W
Short鈥揅ircuiting Time (Note 2), t
sc
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Hour
Note 1. I
O
maximum determined by current protection.
Note 2. Up to V
P
= 18V.
1
2
3
4
