TDA1670A. ,35V; 100mA; 30W; vertical deflection circuitapplications also in
portable CTVs, BW TVs, monitors and displays.
CONNECTION DIAGRAM (top view ..
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TDA1670A-TDA1670A.
35V; 100mA; 30W; vertical deflection circuit
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VERTICAL DEFLECTION CIRCUIT
ADVANCE DATA
The functions incorporated are :
n SYNCHRONIZATION CIRCUIT
u PRECISION OSCILLATOR AND RAMP
GENERATOR
n POWER OUTPUT AMPLIFIER WITH HIGH
CURRENT CAPABILITY
n FLYBACK 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 DEFLECTION CUR-
MULTIWATT-15
DESCRIPTION
The TDA 1670A is a monolithic integrated circuit in
15-Iead Multiwatt (O package. It is a full performance
and very efficient vertical deflection circuit intended ORDER CODE : TDA1670A
for direct drive of the yoke of 110' colour TV picture
tubes. It offers a wide range of applications also in
portable CTVs, BW TVs, monitors and displays.
CONNECTION DIAGRAM (top view)
FLYBACK
SUPPLY
BLANKING OUTPUT
AMPLIFIER |NPUT(-)
AMPLIFIER INPUT“)
RAMP OUTPUT
755) U“
en'o‘:
RAMP GENERATOR
GROUND
HEIGHT ADJUSTMENT
OSCILLATOR
SYNC. INPUT
OSCILLATOR
OSCILLATOR
AMPLIFI ER SUPPLY
AMPLIFIER OUTPUT
f s 5253/1
Tab connected to pin 8
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January 1989 1/15
This is advanced information on a new product now in development or undergomg evaluation. Details are subyect to change without notice.
TDA1670A
BLOCK DIAGRAM
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GENERATOR _-.. FLYBACK
AND CRT REGULATOR GENERATOR
PROTECTION
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# RAMP
A. OSCILLATOR f GENERATOR
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5 SYNC l BUFFER SOIGOHz THERMAL
SYNC. . l I STAGE swarm PROTECTION
7 , 10 n E
,c o .1.
id Lm. OUT
HEIGHT
Tf s, 5251.
BLANK 15
VOLTAGE L r-i----
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
Vs Supply Voltage at Pin 14 35 V
V1, V2 Flyback Peak Voltage 60 V
vs Sync. Input Voltage 20 V
V11, V12 Power Amplifier Input Voltage Vs V
V13 Voltage at Pin 13 Vs
Io Output Current (non repetitive) att = 2 msec 3 A
lo Output Peak Current at f = 50 Hz t > 10 usec 2 A
Io Output Peak Current at f = 50 Hz t s 10 psec 3.5 A
I15 Pin 15 Peak to Peak Flyback Current at f = 50 Hz, my f 1.5 msec 3 A
I15 Pin 15 DC Current at V1 < VM 100 mA
Ptot Maximum Power Dissipation at Tcase s 60 ( 30 W
Tsta, Ti Storage and Junction Temperature - 40 to 150 (
THERMAL DATA
Rm j-Case Thermal Resistance Junction-case Max 3 (AN
Ru, J-amlo Thermal Resistance Junction-ambient Max 40 cc/W
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