SANYO LA7832

Ordering number: EN 5145
Monolithic Linear IC
LA7832
Color TV Vertical Deflection Output Circuit
Overview
Package Dimensions
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.
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 at Ta = 25 °C
Parameter
Maximum supply voltage
Deflection output current
Allowable power dissipation
Operating temperature
Storage temperature
Thermal resistance
Symbol
V6 max
V3 max
I2 max
Pd max
Topr
Tstg
θj-c
Conditions
(Pump-up block)
(Output block)
With arbitrarily large heat sink
Ratings
30
62
±1.5
8
–20 to +85
–40 to +150
4
Unit
V
V
Ap-o
W
°C
°C
°C/W
Operating Conditions at Ta = 25 °C
Parameter
Recommended supply voltage
Operating supply voltage range
Deflection output current
Symbol
V6
V6
I2p-p
Conditions
Ratings
24
10 to 27
to 1.8
Unit
V
V
Ap-p
Operating Characteristics at Ta = 25 °C, V6 = 24 V
Parameter
Deflection output saturation voltage (lower)
Deflection output saturation voltage (upper)
Pump-up charge saturation voltage
Pump-up discharge saturation voltage
Idling current
Midpoint voltage
Symbol
V(sat)2-1
V(sat)3-2
V(sat)7-1
V(sat)6-7
IDL
VMID
I2
I2
I7
I7
=
=
=
=
Conditions
+0.9 A
–0.9 A
+20 mA
–0.9 A
min
typ
30
9.5
10.5
max
1.2
3.2
1.8
3.0
60
11.5
Unit
V
V
V
V
mA
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.5145-1/3
LA7832
Pin Assignment and Functional Block Diagram
Sample Application Circuit
Pump-up
Power supply
(V6)
Pulse amplifier
output
Oscillation
stopping pin
Input pin
Vertical output
power supply
Vertical
output pin
GND
Vertical
output
Thermal
protector
Vertical driver
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
Allowable power dissipation
Pd max — W
Pd max — Ta
Tightening torque: 4 kg/cm
Coated with silicone grease
With arbitrarily large heat sink
50 x 50 x 1.5 mm3 with Al heat sink
30 x 30 x 1.5 mm3 with Al heat sink
No heat sink
Ambient temperature, Ta — °C
No.5145-2/3
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