SANYO LA7833 Datasheet
Ordering number: EN 5146
Monolithic Linear IC
LA7833
Color TV Vertical Deflection Output Circuit
Overview
The LA7833 is a monolithic linear IC for vertical deflection
output for large color television sets that requires few external
components and dissipates little power. When used in
conjunction with the LA7620 series of video chroma deflection
ICs, the LA7800 series of deflection ICs, and the LA7850
series of display ICs, it is possible to create a stable and
compact vertical output deflection circuit.
Package Dimensions
unit : mm
3075-SIP7H
[LA7833]
Features
.
High output.
.
Low power dissipation due to built-in pump-up circuit.
.
Few external components needed.
.
Thermal protection circuit built in.
SANYO : SIP7H
Specifications
Maximum Ratings atTa=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Deflection output current I
Allowable power dissipation Pd max With arbitrarily large heat sink 8.0 W
Operating temperature Topr –20 to +85
Storage temperature Tstg –40 to +150
Thermal resistance θj-c 4
max (Pump-up block) 30 V
6
V
max (Output block) 62 V
3
max ±1.5 Ap-o
2
C/W
°
C
°
C
°
Operating Conditions atTa=25°C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Operating supply voltage range V
Deflection output current I
6
6
p-p to 2.2 Ap-p
2
10 to 27 V
Operating Characteristics atTa=25°C, V6=24V
Parameter Symbol Conditions min typ max Unit
Deflection output saturation voltage (lower) V
Deflection output saturation voltage (upper) V
Pump-up charge saturation voltage V
Pump-up discharge saturation voltage V
Idling current I
Midpoint voltage V
(sat)2-1I2
(sat)3-2I2
(sat)7-1I7
(sat)6-7I7
DL
MID
= +1.1 A 1.5 V
= –1.1 A 3.5 V
= +20 mA 1.8 V
= –1.1 A 3.2 V
30 60 mA
9.5 10.5 11.5 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
52995HA(II) No.5146-1/3
24 V
LA7833
Pin Assignment and Functional Block Diagram
Vertical driver
Vertical
Thermal
protector
output
Pump-up
GND
Vertical
output pin
power supply
Vertical output
Input pin
Oscillation
stopping pin
Power supply
)
6
(V
Pulse amplifier
output
Sample Application Circuit Sample Application Circuit
LA7820 vertical output LA7620 vertical output
R1* = several hundreds of ohms to 1 kΩ
*: CR used against oscillation
The combination depends on the oscillation
mode.
Sample Application Circuit
LA7850 vertical output
Pd max — Ta
Tightening torque: 4 kg/cm
With arbitrarily large heat sink
50 x 50 x 1.5 mm
30 x 30 x 1.5 mm3with Al heat sink
Pd max — W
No heat sink
3
Allowable power dissipation
Ambient temperature, Ta —°C
Coated with silicone grease
with Al heat sink
No.5146-2/3
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