NTE7139
Integrated Circuit
Video Output Amplifier
Description:
The NTE7139 is a monolithic video output amplifier with a 6MHz bandwidth in a 9鈥揕ead Staggered
SIP type medium power package. This device uses high鈥搗oltage DMOS technology and is intended
to drive the cathode of a CRT. To obtain maximum performance, the amplifier should be used with
black current control.
Features:
D
No External Heatsink Required
D
Black Current Measurement Output for Automatice Black Current Stabilization (ABS)
D
Internal 2.5V Reference Circuit
D
Internal Protection Against Positive Apperaing CRT Flashover Discharges
D
Single Supply Voltage of 200V
D
Simple Application with a Variety of Color Decoders
D
Controlled Switch鈥揙ff Behaviour
Absolute Maximum Ratings:
(Voltages referenced to GND (Pin4) unbless otherwise specified)
Supply Voltage, V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250V
Inverting Input Voltage, V
in
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8V
Black Current Measurement Output Voltage, V
om
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Cathode DC Output Voltage, V
ov
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DD
Feedback Output Voltage, V
of
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DD
Low Non鈥揜epetitive Peak Cathode Output Current, I
oc(l)
(Flashover Discharge = 100碌C, Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5A
High Non鈥揜epetitive Peak Cathode Output Current, I
oc(h)
(Flashover Discharge = 100碌C, Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10A
Maximum Power Dissipation, P
max
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . tbf W
Junction Temperatrure Range, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +150擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Electrostatic Discharge, V
esd
Note 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵2000V
Note 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
鹵300V
Thermal Resistance, Junction鈥搕o鈥揂mbient (In Free Air, Note 6), R
thJA
. . . . . . . . . . . . . . . . . 56K/W
Thermal Resistance, Junction鈥搕o鈥揅ase (Note 6), R
thJC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12K/W
Note 1. Inputs and output are protected against electrostatic discharge in normal handling. However,
to be totally safe, it is desirable to take normal precautions appropriate to handling MOS devices.
Note 2. The cathode output is protected against peak currents (caused by positive voltage peaks
during high鈥搑esistance flash) of 5mA maximum with a charge content of 100碌C.
Note 3. The cathode output is also protected against peak currents (caused by positive voltage
peaks during low鈥搑esistance flash) of 10mA maximum with a charge content of 100碌C.
Note 4. Human body model: equivalent to discharging a 100pF capacitor through a 1.5k鈩?resistor.
Note 5. Machine model: equivalent to discharging a 200pF capacitor through a 0鈩?resistor.
Note 6. External heatsink not required.
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