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| Ordering number:EN4183A Monolithic Digital IC LB1813M FDD Spindle Motor Driver Overview The LB1813M is 3-phase DD motor driver IC and is an ideal FDD spindle motor driver for 3.5 inch applications. Package Dimensions unit:mm 3129-MFP36S [LB1813M] Features * Three phase total wave linear driver. * Eliminates need for output electrolytic capacitor (however, depending on the motor, this may not apply) * On-chip digital speed control : fosc=(1024xfFG)/D When SL1=high D=5/8 SL1=low D=6/8 * Start/Stop circuit. * Rotation speed switching. * Current limiter circuit. * On-chip index comparator (single hysteresis) * On-chip index delay circuit. * AGC circuit. * Thermal protection circuit. SANYO : MFP36S Specifications Absolute Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Maximum output current Steady maximum output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max IO max1 IO max2 Pd max Topr Tstg Independent IC t0.5s Conditions Ratings 7.0 1.0 0.7 1 -20 to +80 -40 to +150 Unit V A A W C C Allowable Operating Conditions at Ta = 25C Parameter Supply voltage Symbol VCC Conditions Ratings 4.2 to 6.5 Unit 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 Bussiness Headquaters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN 83198HA (KT)/50995TH (ID)/8112TS No.4183-1/8 LB1813M Electrical Characteristics at Ta = 25C, VCC=5V Parameter Current drain Time changeover bias current Time changeover input voltage1 Time changeover input voltage2 S/S bias current S/S start voltage S/S stop voltage Hall-effect bias amplifier input current In-phase input voltage range Differntial input voltage range Input offset voltage Hall-effect output voltage Leak current Output saturation voltage (sink plus source) Output leak current Current limiter Control amplifier voltage gain Votlage gain phase differntial Integrated amplifier internal reference voltage Integrated amplifier bias current Integrated output voltage amplitude Gain band width FG amplifier input voltage range FG amplifier voltage gain FG amplifier input offset FG amplifier internal reference voltage Schmitt hysteresis width Schmitt input operation level Speed disk recount number Disk recount out low level voltage Disk recount out high level voltage Disk recount out leak current Disk recount operation frequency Oscillation range Index bias current In-phase input voltage range Hysteresis setting current range Index output low level voltage Index output high level voltage Brak-down voltage Delay output low level voltage Delay output high level voltage Thermal shutdown operating temperature Hysteresis width VFG GFG VFG0 VFGB Vsh1 Vsh2 Vsh N VDL VDH ID1 FD FOSC IIDB VID IIDO VIDL VIDH VDLDC VDLL VDLH TSD TSD VID=5V VID=5V VID=5V VID=5V VID=5V 4.5 150 180 40 4.5 2.50 0.4 1.5 5 10 ID=-0.5mA ID=0.5mA VCC-0.4 1.0 1.0 1.0 10 VCC-0.5 15 0.4 High Low Low High 1 1042 0.3 V V A MHz MHz A V A V V V V V C C Symbol ICCO1 ICC1 ISL VSLL VSLH IS/S VS/S VS/S IHB Vh Vdif Vho VH IHL Vsat1 Vsat2 IOL Vref1 GC GC Vref2 lib Vi+ Vi- IH=5mA Stop Conditions VCC=5.0V (Stop) VCC=5.0V (Steady) Ratings min typ 20 0 2.0 0 2.0 2.2 70 1.5 1.2 1.5 0.27 0.30 -6 1 VCC/2 1 max 0.4 30 0.4 0.8 VCC 0.1 0.8 VCC 20 Unit mA mA mA V V mA V V A Note VCC-0.7 V 200 mVp-p 10 1.8 10 1.4 2.0 1.0 0.33 mV V A V V mA V dB dB V A V V kHz 100 mVp-p 60 10 dB mV V mV mV VCC-1 V * * 2.80 * * IO=0.35A, VCC=4.2V IO=0.70A, VCC=4.2V li=-0.5mA with reference of Vref2 li=0.5mA with reference of Vref2 5 Open loop 2.20 0.75 -1.4 1000 2.50 25 25 * * * * Note : *) Marked values are guaranteed by the design itself and therefore do not require measurement. No.4183-2/8 LB1813M Block Diagram Unit (reissitace : , capacitance : F) Pin Assignment (Top view) No.4183-3/8 LB1813M Truth Table Source Sink 1 2 3 4 5 6 V-phase W-phase V-phase U-phase W-phase U-phase W-phase V-phase U-phase V-phase U-phase W-phase Hall-Effect Input U H L L L H H V H H H L L L W L L H H H L When an high level exists for Hall-effect input. U+>U- V+>V- W+>W- Pin Description Unit (resistance : ) Pin No. Symbol Pin voltage Equivalent circuit Pin function * W-phase Hall-effect input pin. W+>W- is established when logic is at an high level. * V-phase Hall-effect input pin. V+>V- is established when logic is at an high level. * U-phase Hall-effect input pin. U+>U- is established when logic is at an high level. 5 6 7 8 9 10 W- W+ V- V+ U- U+ 2.2V min VCC-0.7V max 11 HB 1.5V typ IH=5mA * Minus pin for Hall-efffect bias, When stopped, switches open and Hall-effect bias severs. 12 FC * Frequency characteristics revision pin. By installing a capacitor between this pin and GND, close-loop oscillation for the current control system halts. 1.5V typ VCC-0.5V max * Index input pin. When the I+ pin is at an low level, I1 operates with the fixed current of I1=10A and when at an high level, I1 does not flow. Hysteresis width is determined by the resistor attached externally to the I+ pin. 13 14 I+ I- 15 SL1 High : 2.0V min Low : 0.8V max * Time changeover pin. fosc=1MHz SL2 SL1 H 16 SL2 High : 2.0V min Low : 0.8V max H 600rpm 720rpm L 300rpm 360rpm FG : 60pulse/round L Continued to next page. No.4183-4/8 LB1813M Continued from preceding page. Unit (resistance : ) Pin No. 17 Symbol X1 Pin voltage Equivalent circuit Pin function * Reference clock generating pin. 18 X2 19 GND * Ground pin. Grounded as with pins 1 and 36. High : 4.5V min Low : 0.4V max (When VID=5V) * Index pulse output pin. 20 ID 21 DT1 * Pin Connecting the external CR for the delay time constant circuit. 22 DT2 * Break-down current setting pin for the delay time constant circuit. 23 DTO High : 4.5V min Low : 0.4V max (When VID=5V) * Index delay pulse output pin. 25 FG0 * FG amplifier output pin. 26 FG- * FG amplifier negative input pin. 27 FG+ 2.48V (When VID=5V) * FG amplifier positive input pin. Generates reference voltage within IC. Continued to next page. No.4183-5/8 LB1813M Continued from preceding page. Unit (resistance : ) Pin No. 28 Symbol S/S Pin voltage High : 2.0V min Low : 0.8V max Equivalent circuit Pin function * Start/Stop changeover pin. Low level active. 29 DO * Speed discriminator output pin. 30 IAI * Integrated amplifier input pin. 31 IAO * Integrated amplifier output pin. 32 VID * Index pulse output and index delay pulse output power supply pin. For applications when VCC equals 5V, VCC=VID=5V. 33 VCC * Total power supply voltage pin except for VID. Voltage must be stable and free of ripple and noise interference. 34 Rf * Output current detection pin. By installing an Rf resistor between this pin and VCC, output current is detected as voltage. Voltage detection at this pin activates the current limitter. * U-phase output pin. 35 UOUT 36 1 2 3 Pow GND Sub GND VOUT WOUT AGC * Output transistor ground pin. * Ground pin. Ground as with pins 19 and 36. * V-phase output pin. * W-phase output pin. * AGC (Automatic gain control) pin. Confrds Hall-efffect amplifier gain in response to Halleffect input-frequnecy. 4 No.4183-6/8 LB1813M Index and Timing Chart When SL1=high level When SL1=low level. Using only the ID pulse involves shorting DT1 and DT2. No.4183-7/8 LB1813M 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 and all SANYO products described or contained herein fall under strategic products (including services) controlled under the Foreign Exchange and Foreign Trade Control Law of Japan, such products must not be exported without obtaining export license from the Ministry of International Trade and Industry 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 August, 1998. Specifications and information herein are subject to change without notice. PS No.4183-8/8 |
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