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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