Ordering number : ENA1412 Monolithic Digital IC LB11966M For Fan Motor 2-phase Half-Wave Driver Overview The LB11966M is a two-phase half-wave brushless motor driver for fan motor. Functions • 2-phase half-wave drive. • RD (Rotation Detection) outputs incorporated. • FG (Frequency Generation) outputs incorporated. • Thermal shutdown circuit incorporated. • Lock protection and automatic return function incorporated. • Output protection zener diode incorporated. • Hall input amplifier incorporated. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCC max 16 V Output current IOUT ave 500 mA 1200 mA IOUT peak Output withstand voltage VOUT max FG/RD output current IFG/RD max t ≤ 1s Internal 10 V mA FG/RD output withstand voltage VFG/RD max Allowable power dissipation Pd max Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C Mounted on a specified board * 16 V 800 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. 21209 MS 20090114-S00018 No.A1412-1/4 LB11966M Recommended Operating Ranges at Ta = 25°C Parameter Symbol Supply voltage VCC Common-mode input voltage range VCOM Conditions Ratings Unit 3.0 to 15 V 0.2 to VCC-2.3 V Electrical Characteristics at Ta = 25°C, VCC=12V Parameter Symbol Ratings Conditions min Unit typ Circuit current ICC CT capacitor charging current ICT1 CT = 0.2 2.4 CT capacitor dis-charging current ICT2 CT = 2.0 0.2 capacitor charging / dis-charging RCT RCT = ICT1 / ICT2 max During driving (CT = L) 4 6 mA 3 5 mA 3.0 3.6 µA 0.3 0.4 µA 8 10 12 During lock protection (CT = H) current ratio CT charging voltage VCT1 1.4 1.6 1.8 V CT dis-charging voltage VCT2 0.6 0.8 1.0 V Output limit withstand voltage VOLM IO = 10mA Output saturation voltage VOL IO = 500mA 23.5 Hall input sensitivity VHN Including offset and hysteresis 25 26.5 V 0.95 1.3 V 6 18 mV RD output saturation voltage VRD IRD = 5mA 0.2 0.5 V RD output leak current IRL VRD = 14V 0.1 10 µA RD output saturation voltage VFG IFG = 5mA 0.2 0.5 V RD output leak current IFL VFG = 14V 0.1 10 µA Thermal protection function VTH Design target value * 180 200 °C 150 operating temperature * Design target value and is not measured. Package Dimensions unit : mm (typ) 3086B Pd max -- Ta 0.63 5.0 10 4.4 6.4 6 0.15 0.1 (1.5) 1.7max 5 1 0.35 1.0 (0.5) Allowable power dissipation, Pd max -- mW 1000 Specified board : 114.3×76.1×1.6mm3 glass epoxy board 800 600 416 400 200 0 -30 -20 0 20 40 60 80 85 100 Ambient temperature, Ta -- °C SANYO : MFP10S(225mil) No.A1414-2/4 LB11966M Pin Assignment IN− 1 CT 3 NC 4 LB11966M IN+ 2 10 RD 9 FG 8 VCC 7 OUT2 6 GND OUT1 5 Top View Truth table IN- IN+ H L L H − − CT OUT1 OUT2 RD FG L H L L H L L H OFF OFF H − L H Mode Rotation Lock protection Block Diagram L1 VCC L2 Thermal protection VCC OUT1 IN+ H Control block IN− RD OUT2 Constant current circuit CT FG C1 0.1 to 1µF GND No.A1414-3/4 LB11966M Application Circuit Example VCC VCC H IN+ OUT1 IN- OUT2 RD CT GND FG 0.47µF Substrate parts Notice • Take care not to cause interference due to wiring of IN- and OUT1. • In application of connecting the CT pin to GND, lock protection and restart function are not effective. • In a circuit configuration as shown above, a power supply/GND reverse connection will cause a current to flow as follows: GND → OUT → coil → power supply. The magnitude of this current is limited by the coil resistance. If it is less than 500mA, the IC will not be destroyed. If required, insert a diode between VCC and the coil. • The FG pin and RD pin are left open when not used. 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 February, 2009. Specifications and information herein are subject to change without notice. PS No.A1414-4/4