TDA6120Q NXP Semiconductors, TDA6120Q Datasheet - Page 11

• Manufacturer Part Number: TDA6120Q
• Manufacturer: NXP Semiconductors

Specifications of TDA6120Q

• Single Supply Voltage (typ): Not RequiredV
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Mounting: Through Hole
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
TEST AND APPLICATION INFORMATION
Dissipation
Regarding dissipation, distinction must be made between
static dissipation (independent of frequency) and dynamic
dissipation (proportional to frequency). The static
dissipation of the TDA6120Q is due to supply currents, and
currents in the feedback network and CRT.
The static dissipation is given by the following equation:
Where:
The dynamic dissipation is given by the following equation:
P
2000 Dec 13
P
–
dyn
stat
V
R
I
Video output amplifier
OUTC
OUTC
f
= V
= feedback resistance
=
V
= DC cathode current.
DD
CC
V
----------------- - V
OUTC
(C
R
I
f
CC
L
+ C
+
–
V
int
OUTC
DD
)
f
I
DD
V
I
OUTC
OUTC(p-p)
b
11
Where:
The IC must be mounted on the picture tube base
printed-circuit board to minimize the load capacitance C
Switch-off
The TDA6120Q is equipped with a switch-off circuit to
guarantee a controlled switch-off behaviour of the output
pins. The switch-off function is activated when the low
supply voltage (V
(V
is pulled to the high supply voltage level (V
independant of input pin voltage levels.
C
C
(approximately 7 pF)
f = frequency
V
b = non-blanking duty cycle (0.8).
CC(sw)
OUTC(p-p)
L
int
= load capacitance
= effective internal load capacitance
). Then the voltage at output pins OUT and OUTC
= output voltage (peak-to-peak value)
CC
) drops below a reference level
Product specification
TDA6120Q
DD
),
L
.