Ordering number: EN 5146
Monolithic Linear IC
LA7833
Color TV Vertical Deflection Output Circuit
Overview Package Dimensions
unit : mm
The LA7833 is a monolithic linear IC for vertical deflection
output for large color television sets that requires few external 3075-SIP7H
components and dissipates little power. When used in
conjunction with the LA7620 series of video chroma deflection [LA7833]
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.
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 Symbol Conditions Ratings Unit
Maximum supply voltage V6 max (Pump-up block) 30 V
V3 max (Output block) 62 V
Deflection output current I2 max ±1.5 Ap-o
Allowable power dissipation Pd max With arbitrarily large heat sink 8.0 W
Operating temperature Topr –20 to +85 °C
Storage temperature Tstg –40 to +150 °C
Thermal resistance θj-c 4 °C/W
Operating Conditions at Ta = 25 °C
Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V6 24 V
Operating supply voltage range V6 10 to 27 V
Deflection output current I2p-p to 2.2 Ap-p
Operating Characteristics at Ta = 25 °C, V6 = 24 V
Parameter Symbol Conditions min typ max Unit
Deflection output saturation voltage (lower) V(sat)2-1 I2 = +1.1 A 1.5 V
Deflection output saturation voltage (upper) V(sat)3-2 I2 = –1.1 A 3.5 V
Pump-up charge saturation voltage V(sat)7-1 I7 = +20 mA 1.8 V
Pump-up discharge saturation voltage V(sat)6-7 I7 = –1.1 A 3.2 V
Idling current IDL 30 60 mA
Midpoint voltage VMID 9.5 10.5 11.5 V
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52995HA(II) No.5146-1/3
LA7833
Pin Assignment and Functional Block Diagram
Vertical driver
Pump-up
protector
Thermal
Vertical
output
GND
Vertical
output pin
Vertical output
power supply
Power supply
Pulse amplifier
output
Input pin
Oscillation
stopping pin
(V6)
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
Coated with silicone grease
With arbitrarily large heat sink
Allowable power dissipation
Pd max — W
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.5146-2/3
LA7833
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.5146-3/3
This datasheet has been download from:
www.datasheetcatalog.com
Datasheets for electronics components.
