LA78040N

Ordering number : EN7880A Monolithic Linear IC LA78040N Overview TV and CRT Display Vertical Output IC with Bus Control Support The LA78040N is a vertical deflection output IC for high image quality TV and CRT displays that supports the use of a bus control system signal-processing IC. The sawtooth waveform from the bus control system signal-processing IC can directly drive the deflection yoke (including the DC component). Color TV vertical deflection system adjustment functions can be controlled over a bus system by connecting the LA78040N to a Sanyo LA768X series or LA769XX series bus control system signal-processing IC. Since the LA78040N provides a maximum deflection current of 1.7Ap-p, it is optimal for small and medium size CRTs. Functions • Built-in pump-up circuit for low power dissipation. • Vertical output circuit. • Thermal protection circuit. Specifications Maximum Ratings at Ta = 25°C Parameter Pump-up block supply voltage Output block supply voltage Allowable power dissipation Deflection output current Thermal resistance Operating temperature Storage temperature Symbol +B2 max +B6 max Pd max I5 max θj-c Topr Tstg Mounted on an arbitrarily large heat sink. Conditions Ratings 34 70 9 -1.4 to +1.4 3 -20 to +85 -40 to +150 Unit V V W Ap-o °C/W °C °C 90705 MS OT B8-6984 No.7880-1/4 LA78040N Operating Conditions at Ta = 25°C Parameter Recommended supply voltage Operating supply voltage range Deflection output current +B2 +B2op I5p-p Symbol Conditions Ratings 24 16 to 33 To 1.8 Unit V V Ap-p Operating Characteristics at Ta = 25°C, +B2 = 24V Ratings 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 Idl Vmid 20 11.0 12.0 Vsat2-3 I3 = 0.9A Vsat3-4 I3 = 20mA Vsat6-5 I5 = -0.9A Symbol Vsat5-4 I5 = 0.9A Conditions min typ max 1.3 3.2 1.8 3.0 50 13.0 V V V V mA V Unit Note: Current flowing into the IC is positive (+) and current flowing out is negative (-). Package Dimensions unit : mm 3286 No.7880-2/4 LA78040N Block Diagram Application Circuit Example 1 (Single power supply) LA78040N 1 +VCC(24V) 100µF 2 100µF 3 4 5 6 1µF 7 10kΩ 10kΩ 5V 330Ω 33kΩ 4.7µF 10kΩ 1000µF 11kΩ 1.0Ω 1.0Ω IN 10kΩ 0.1µF No.7880-3/4 LA78040N Application Circuit Example 2 (Dual power supply) LA78045 1 +VCC 2 3 4 5 6 7 -VCC IN Vref ! Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. ! SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. ! In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. ! No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, of otherwise, without the prior written permission of SANYO Electric Co., Ltd. ! Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. ! 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 h ih f hi d i This catalog provides information as of September, 2005. Specifications and information herein are subject to change without notice. PS No.7880-4/4