DEFLECTION CIRCUIT. TDA1770 Datasheet

TDA1770 CIRCUIT. Datasheet pdf. Equivalent


Part TDA1770
Description VERTICAL DEFLECTION CIRCUIT
Feature LINEAR INTEGRATED CIRCUIT VERTICAL DEFLECTION CIRCUIT PRELIMINARY DATA The TDA 1770 is a monolith.
Manufacture SGS
Datasheet
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LINEAR INTEGRATED CIRCUIT VERTICAL DEFLECTION CIRCUIT PREL TDA1770 Datasheet
TDA1770A Datasheet
Recommendation Recommendation Datasheet TDA1770 Datasheet




TDA1770
LINEAR INTEGRATED CIRCUIT
VERTICAL DEFLECTION CIRCUIT
PRELIMINARY DATA
The TDA 1770 is a monolithic integrated circuit in 20-lead plastic package. It is a full performance and
very efficient vertical deflection circuit intended for direct drive of the yoke.
It offers a wide range of applications in portable CTVs, BW TVs, monitors and displays. The functions
incorporated are:
synchronization circuit.
precision oscillator and ramp generator
power output amplifier
fly back generator
voltage regulator
precision blanking pulse generator
thermal shut down protection
CRT screen protection circuit which blanks the beam current in the event of loss of vertical deflec-
tion current.
The TDA 1770 is assembled in a new 20-lead plastic package which has 4 centre pins connected together
and used for heatsinking.
ABSOLUTE MAXIMUM RATINGS
Vs Supply voltage at pin 2
V7 , Va Flyback peak voltage
V ll Sync. input voltage
V 19 , V 20 Power amplifier input voltage
Voltage at pin 1
Output current (non repetitive) at t = 2 msec
>Output peak current at f = 50 Hz t 10 J,1sec
Output peak current at f = 50 Hz t .;;; 10 J,1sec
=Pin 3 peak to peak flyback current at f 50 Hz, t f1y .;;; 1.5 msec
<Pin 3 DC current at V7 V2
Maximum power dissipation: at TPins';;; 90°C
at Tamb = 70°C
Storage and junction temperature
35
60
20
{ Vs
-10
Vs
2
1.2
2.2
2
50
4.3
1
-40 to 150
V
V
V
V
A
A
A
A
rnA
W
W
°C
ORDERING NUMBER: TDA 1770
MECHANICAL DATA
Dimensions in mm
563 6/82



TDA1770
CONNECTION DIAGRAM
(top view)
BLANKING OUTPUT
SUPPLY (+)
FLVBACK
N.C
GROUND
GROUND
AMPLIFIER OUTPUT 7
AMPLIFIER SUPLLY 8
OSCILLATOR
OSCILLATOR
10
AMPliFIER INPUT(-)
AMPLIFIER INPUT(+)
RAMP OUTPUT
RAMP GENERATOR
GROUND
GROUND
HEIGHT ADJUST.
N.C.
OSCILLATOR
11
s- 5265
SYNC. INPUT
BLOCK DIAGRAM
BLANKING
OUT
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564
5- 5280







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