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| Ordering number:ENN3244 Monolithic Linear IC LA5691D, 5691S Voltage Regulator Driver with Watchdog Timer (with Output ON/OFF Function) Overview The LA5691 is a single-chip voltage regulator for microcomputer system monitor use that performs the functions of 5V output voltage control, watchdog timer, and voltage detector. Since the LA5691 is capable of exercising output ON/OFF controls it is especially suited for use in batterypowered equipment. Package Dimensions unit:mm 3001B-DIP8 [LA5691D] 8 5 7.62 6.4 Applications * Microcomputer system for car equipment, refrigeration/ heating equipment, office automation equipment. 1 9.4 3.9max 3.0 4 * Output voltage 5V control. * Watchdog timer. * Reset generation at power-ON-mode. * The enable pin can be used to exercise output ON/OFF control (Active-low). 0.51min Functions 0.5 0.89 2.54 1.4 3.2 SANYO : DIP8 unit:mm 3017C-SIP9 [LA5691S] Features * An external PNP transistor can be used to provide a lowsaturation voltage regulator. * Capable of reducing of power dissipation at standby mode (IQ OFF=300mA typ). * CK input with edge detector. * Variable detection voltage. 1.5 22.3 3.0 0.51 min 1 0.99 2.54 0.5 9 1.3 0.25 1.35 SANYO : SIP9 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)/O259YT/8037TA, TS No.3244-1/7 3.2 5.7 max 4.8 1.0 0.25 LA5691D, 5691S Specifications Maximum Ratings at Ta = 25C Parameter Control pin voltage Control pin voltage Control pin current Enable pin voltage CK input voltage Reset pin voltage Allowable power dissipation Operating temperature Storage temperature Symbol VCONT max VCONT max Conditions 1s *VCC 6V Ratings 60 41 11 41 25 41 500 -40 to +85 -55 to +150 Unit V V mA V V V mW C C ICONT max VEN max VCK max VRES max Pd max Topr Tstg * : A PNP transistor is connected to the LA5691D, 5691S externally to provide a low-saturation voltage regulator. Therefore, ICONT100mA will flow, as starting current, in the VCC range where the output cannnot be regulated. Operating Conditions at Ta = 25C Parameter Control pin voltage Control pin current Reset output current Reset detection voltage Symbol VCONT ICONT max IRES max VS min Conditions Ratings 6 to 40 10 Unit V mA mA V External R pull-up (with pull-up R 10k) 8 4 Operating Characteristics at Ta = 25C, VCC=14V, IO=50mA, unless otherwise specified. See specified Test Circuit. Parameter Output voltage Line regulation Load regulation Current drain Output noise voltage Temperature coefficient of output voltage Reference voltage H-level CK input voltage L-level CK input voltage H-level CK input current L-level CK input current H-level reset output voltage L-level reset output voltage 1 L-level reset output voltage 2 CK input pulse width Reset output delay time Watchdog time Watchdog reset time Reset hysteresis voltage L-level output coltage Quiescent current Output OFF control voltage Output ON control voltage Symbol VO VOLN1 VOLN2 VOLD ICC VNO VO/Ta VREF VIH VIL IIH IIL VORH VORL1 VORL2 tCKW td tWD tWR Vhys VO OFF IQ OFF VEN H VEN L VCK=5V VCK=0 Conditions Ratings min 4.8 9VVCC16V 6VVCC40V 1mAIO50mA IO=0 10Hzf100kHz, VCK=0 IO=5mA, -40CTa+85C 1.13 2 0.8 0.3 -1.0 4.8 IRES=8mA VCK=5V Ct=1F Ct=1F Ct=1F VS=4.5V VEN=5V VEN=5V Output OFF Output ON 2 0.8 3 7.5 3.8 0.1 100 10 5.0 0.25 200 150 300 12.5 6.2 0.4 300 300 600 -0.1 5.0 40 0.16 5.2 200 0.8 0.7 typ 5.0 2 4 4 4.1 200 0.2 1.18 1.23 max 5.2 10 30 30 6.5 Unit V mV mV mV mA V mV/C V V V mA A V mV V s ms ms ms mV mV A V V Pin Assignments * The NC pin, which is left open, must not be used for wiring. No.3244-2/7 LA5691D, 5691S Equivalent Circuit Block Diagram * The reset output contains a pull-up resistor of 10k. Test Circuit Sample Application Circuit Function Table * Ct, CO : Capacitors whose value does not vary with temperature very much. * CCK : Must be used to eliminate noise in the reset output. No.3244-3/7 LA5691D, 5691S Timing Chart Note : Edge-triggered at the point indicated by the arrow of CK signal. No.3244-4/7 LA5691D, 5691S No.3244-5/7 LA5691D, 5691S No.3244-6/7 LA5691D, 5691S 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.3244-7/7 |
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