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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 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 j-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 max 1.2 3.2 1.8 3.0 60 11.5 Unit V V V V mA V

30 9.5

10.5

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52995HA(II) No.5145-1/3

LA7832
Pin Assignment and Functional Block Diagram

Sample Application Circuit
LA7820 vertical output

Sample Application Circuit
LA7620 vertical output

R1* = several hundreds of ohms to 1 k *: CR used against oscillation The combination depends on the oscillation mode.

Sample Application Circuit
LA7850 vertical output

Power supply (V6) Pulse amplifier output Pd max -- Ta Ambient temperature, Ta -- °C

GND

Vertical output power supply

Allowable power dissipation Pd max -- W

Oscillation stopping pin

Vertical output pin

Input pin

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

Pump-up

Vertical driver Thermal protector Vertical output

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