TDA8143 STMicroelectronics, TDA8143 Datasheet - Page 7

• Manufacturer Part Number: TDA8143
• Description: TV HOR. DRIVER
• Manufacturer: STMicroelectronics

Figure 6 : Block Diagram of the Integrated Horizontal Driver
In Figure 7 is shown the application diagram of the
TDA8143, the few external component and the
automatic handling possibility ensures a lower ap-
plication cost versus the conventional approach
shown in Figure 3.
In Figure 8 is shown the currents and voltage
waveforms of the driver circuit of Figure 7 as to be
seen, the driving charge I
at minimum.
STANDBY INPUT
AND REMOTE
PROTECTION
CONTROL
STANDBY
REMOTE
SPECIAL
INPUT
9
8
7
VOLTAGE
CONTROL
V < 7V
OVERTEMP.
PROTECTION
T < 150˚C
C
j
&
C
b
Q5
T
I
6
2
&
t
on
C
EXT
has been reduced
Q2
R1
Q3
Q9
R3
Q4
R2
V1
Q1
TRANSCONDUCTANCE
I
1
The power dissipation on this application condition
is about 1.3W.
The presence of thermal shut-down circuit means
that the heatsink can have a smaller factor of safety
compared with that of a conventional circuit.
If for any reason, the junction temperature in-
creases up to 150
switches off the device.
Q8
AMPLIFIER
Q6
R6
INPUT
D1
R4
Q7
V
V2
REF
o
C, the thermal shut-down simply
= 750mV
D2
Q10
Q11
1
POWER
GROUND
R5
V
IN
5
SENSE
GROUND
TDA8143
3
2
4
OUTPUT
V
SENSE
INPUT
I
CC
B
+
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