Ordering number : ENA1338 Monolithic Digital IC LA1909M Stepping Motor Driver IC Overview The LB1909M is a 2-channel low saturation voltage forward/reverse motor driver that can operate on a wide supply voltage range (2.5V to 16V). The IC is ideal for use in 2-phase excitation drive of general-purpose 2-phase bipolar stepping motors including dampers for refrigerators. Features • Wide supply voltage range : 2.5V to 16V • Low saturation voltage : VO(sat) = 0.25V typ at IO = 200mA. • Built-in shoot-through current protection circuit. • No standby current consumption (or zero). • Built-in thermal shutdown circuit. • Small package : MFP10S (225mil) Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum power source voltage VCC max -0.3 to +20 V Applied output voltage VOUT max -0.3 to +20 V Applied input voltage VIN max -0.3 to +18 GND pin outflow current IGND Allowable power consumption Pd max Operating temperature Topr -30 to +85 °C Storage temperature Tstg -40 to +150 °C Independent IC Mounted on the specified board * V 800 mA 350 mW 870 mW * Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board. Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. O2908 MS 20081015-S00004 No.A1382-1/4 LB1909M Allowable Operating Range at Ta = 25°C Parameter Symbol Supply voltage VCC Input high level voltage VIH Input low level voltage VIL Conditions Ratings Unit 2.5 to 16 V 1.8 to 10 V -0.3 to +0.7 V Pins ENA, IN1, IN2 Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Power source current Output saturation voltage Input current typ Unit max ICC0 ENA = L 0.1 10 µA ICC1 ENA = H 25 35 mA VOUT1 IOUT = 200mA 0.25 0.35 V VOUT2 IOUT = 400mA 0.50 0.75 V IIN VIN = 5V 120 160 µA Ttsd Design guarantee *2 180 °C 60 °C Thermal protection block *1 Thermal shutdown operation temperature Temperature hysteresis width ∆Ttsd Spark killer diode Reverse current IS(leak) orward voltage VSF IOUT = 400mA 30 µA 1.7 V *1 The thermal protection function is a feature to prevent the product from smoking and firing under unusual conditions. It is not intended to guarantee operation of the product under an ambient temperature exceeding the operating temperature range. *2 Design guarantee is not tested in individual units. Package Dimensions unit : mm (typ) 3086B Pd max -- Ta 10 0.63 5.0 4.4 6.4 6 0.15 0.1 (1.5) 1.7max 5 1 0.35 1.0 Allowable power dissipation, Pd max -- W 1.0 Specified board : 114.3×76.1×1.6mm3 glass epoxy board 0.87 0.8 0.6 0.45 0.4 0.35 Independent IC 0.2 0 -30 -20 (0.5) 0.18 0 20 40 60 80 85 100 Ambient temperature, Ta -- °C SANYO : MFP10S(225mil) No.A0000-2/4 LB1909M Pin Assignment VCC 1 IN1 3 IN2 4 LB1909M ENA 2 10 OUT1 9 OUT2 8 OUT3 7 OUT4 6 GND NC 5 Top view Truth table Input Output Remarks ENA IN1 IN2 OUT1 OUT2 OUT3 OUT4 L × × OFF OFF OFF OFF H L H L H L H Standby mode Channel 1 Forward Reverse L H L H L H Channel 2 Forward Reverse Block Diagram 30kΩ 100kΩ 35kΩ IN1 3 Control block circuit ENA 2 Thermal shutdown circuit VCC 1 10 9 OUT1 Motor OUT2 100kΩ 35kΩ IN1 4 8 7 100kΩ 6 OUT3 OUT4 GND No.A0000-3/4 LB1909M Timing Chart (2 phase excitation drive) ENA IN1 IN2 Forward Channel 1 output Reverse Forward Reverse Forward Standby Channel 2 output Standby Reverse Forward Reverse Forward Reverse SANYO Semiconductor Co.,Ltd. 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 Semiconductor Co.,Ltd. products described or contained herein. SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise to smoke or fire, or accidents 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 Semiconductor Co.,Ltd. products described or contained herein are controlled under any of applicable local export control laws and regulations, such products may require 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, or otherwise, without the prior written consent of SANYO Semiconductor 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 Semiconductor Co.,Ltd. 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. Upon using the technical information or products described herein, neither warranty nor license shall be granted with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's intellctual property rights which has resulted from the use of the technical information and products mentioned above. This catalog provides information as of October, 2008. Specifications and information herein are subject to change without notice. PS No.A1338-4/4