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| Ordering number:ENN4185 Monolithic Linear IC LA5685N Multifunction, Multi-Power Supply IC for Car Radios Overview The LA5685N is a multifunction, multipower supply IC developed for car radios. It has 8.5V AM output, 8.5V FM output, 8.5V common output, 5.2V microcomputer output, and 5.1V bias output, making it the ideal power supply for LA1833 and LA1887 ICs for FM/AM tuner systems. Package Dimensions unit:mm 3046B-SIP10F [LA5685N] 25.5 24.0 3.6 3.6 Features * A total of five built-in outputs : V1=8.5V (AM), V2=8.5V (FM), V3=8.5V (common), V4=5.2V (microcomputer), and V5=5.1V. * R ON/OFF, FM/AM switching functions. * Minimal static current for backup (120A typ). * Built-in overvoltage protection circuit (V1, V2, and V3 go off at 28V (typ.), V4 and V5 go off at 56V (typ)). * Built-in thermal shutdouwn circuit (output goes off at Tj=170C (typ.)). * Built-in short protection circuit. 16.7max 3.5 14.0 8.4 1.6 min 1 2.54 0.5 1.3 10 0.45 1.6 1.32 SANYO : SIP10F Specifications Maximum Ratings at Ta = 25C Parameter Input votage Symbol VCC max1 VCC max2 I1 max I2 max Output current I3 max I4 max I5 max Allowable power dissipation Operating temperature Storage temperature Pd max Topr Tstg Conditions 4% duty pulse width 200ms pulse input (input pulse when output on) Ratings 75 25 80 100 200 50 5 2.45 -35 to +85 -40 to +125 Unit V V mA mA mA mA mA W C C Operating Conditions at Ta = 25C Parameter Power supply voltage B/U voltage Symbol VCC op B/U Conditions 9V to 10.5V not regulated 6V to 8.5V not regulated Ratings 9 to 16 6 to 16 Unit V V Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein. SANYO Electric Co.,Ltd. Semiconductor Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 40500TN (KT)/8282TS No.4185-1/4 LA5685N Operating Characteristics at Ta = 25C, unless otherwise noted, VCC=12V, R-ON=FM/AM=5V External 33F OS capacitor connected to V1, V2, V3, and V4 Parameter Static current Symbol ICC1 ICC2 V1 V2 Output voltage V3 V4 V5 V1 line V2 line Line regulation V3 line V4 line V5 line B/U static current V5 on-off TH voltage R-ON on voltage R-ON off voltage FM/AM on voltage FM/AM off voltage Input current R-ON Input current FM/AM IB/U V5TH R-ON ON R-ON-OFF FM/AM ON FM/AM OFF Conditions R-ON=FM/AM=0V R-ON=FM/AM=5V FM/AM=0V, I1=20mA FM/AM=5V, I2=50mA I3=100mA I4=20mA I5=1mA FM/AM=0V, 11V Unit mA mA V V V V V mV mV mV mV mV mA V V V V V mA mA mV mV mV mV mV dB dB dB dB dB IR-ON IFM/AM V1 Load V2 Load R-ON=5V FM/AM=5V FM/AM=0V, 1mA V3 Load V4 Load V5 Load Rr1 Rr2 Ripple regulation Rr3 Rr4 Rr5 Note : * indicates design guaranteed value. Pin Assignment Top view No.4185-2/4 LA5685N Block Diagram Pin 1 2 3 4 5 Name VCC B/U V4 V5 V3 Pin 6 7 8 9 10 Name GND V2 V1 R-ON FM/AM Test Circuit Sample Application Circuit No.4185-3/4 LA5685N Input/Output Table Inputs ACC L L H H H B/U L H * * * R-ON * * H H L FM/AM * * L H * V1 L L H L L V2 L L L H L Outputs V3 L L H H L V4 L H H H H V5 L L H H H * Negative voltages are not to be applied to these pins. * Always use input/output capacitors (instead of for V5). (We recommended OS capacitors with good characteristics at low temperature.) * Built-in overvoltage protection circuit (V1, V2, and V3 go off at 28V (typ.), V4 and V5 go off at 56V (typ.)) * Built-in thermal shutdown circuit (output goes off at Tj=170C (typ.)) * Built-in short protection circuit. 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 expor ted without obtaining the expor t 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, or 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 other rights of third parties. This catalog provides information as of April, 2000. Specifications and information herein are subject to change without notice. PS No.4185-4/4 |
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