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Ordering number: EN 5145
Monolithic Linear IC
LA7832
Color TV Vertical Deflection Output Circuit
Overview
The LA7832 is a monolithic linear IC for vertical deflection
output for small and mid-sized 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
[LA7832]
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 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 1.8 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
= +0.9 A 1.2 V
= –0.9 A 3.2 V
= +20 mA 1.8 V
= –0.9 A 3.0 V
30 60 mA
9.5 10.5 11.5 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
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52995HA(II) No.5145-1/3
24 V
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LA7832
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
)
6
Power supply
(V
output
Pulse amplifier
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
With arbitrarily large heat sink
50 x 50 x 1.5 mm
Pd max — W
30 x 30 x 1.5 mm3with Al heat sink
No heat sink
Allowable power dissipation
Pd max — Ta
Tightening torque: 4 kg/cm
Coated with silicone grease
3
with Al heat sink
Ambient temperature, Ta —°C
No.5145-2/3
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LA7832
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment,
nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or
indirectly cause injury, death or property loss.
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
1 Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors
and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and
expenses associated with such use:
2 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO
ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume
production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use
or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of May, 1995. Specifications and information herein are subject to change without notice.
No.5145-3/3
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