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| Ordering number : ENN*6231 LB11997H Monolithic Digital IC LB11997H Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive Preliminary Overview The LB11997H is a 3-phase brushless motor driver especially suited for CD-ROM spindle motor drives. Package Dimensions unit: mm 3234-HSOP28H-C [LB11997H] 15.3 28 15 * Current linear drive * Control V type amplifier * Separate power supply for output upper side bias circuit allows low output saturation by boosting this power supply only (useful for 5V power supply types). * Upper side current detection technique reduces loss voltage of current detection resistor. Voltage drop caused by this resistor reduces internal power dissipation of IC. * Built-in short braking circuit * Built-in reverse blocking circuit * Hall FG output * Built-in S/S function * Built-in current limiter circuit (selectable, 2 steps) * Built-in Hall power supply * Built-in thermal shutdown circuit * Supports 3.3V DSP 0.65 0.25 Functions 6.2 2.7 1 0.85 0.8 0.3 2.5max 0.1 2.25 SANYO : HSOP28H-C 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 81299RM(KI) No. 6231-1/8 1.3 10.5 7.9 4.9 LB11997H Specifications Absolute Maximum Ratings at Ta = 25C Parameter Maximum supply voltage Symbol Conditions Ratings 7.0 14.4 14.4 14.4 Unit V V V V V A W C C VCC1 max VCC2 max VCC3 max Applied output voltage Applied intput voltage Output current Allowable power dissipation Operating temperature Storage temperature VO max VIN max IO max Pd max Topr Tstg VCC1 1.3 0.8 -20 to +75 -55 to +150 Operating Conditions at Ta = 25C Parameter Power supply voltage Symbol Conditions Ratings 4 to 6 Unit V V V VCC1 VCC2 VCC3 VCC1 4 to 13.6 4 to 13.6 Sample Application at Ta = 25C Parameter 12V type Symbol Conditions Regulated voltage Unregulated voltage Regulated voltage Boost-up voltage or regulated voltage (Note) Ratings 4 to 6 4 to 13.6 4 to 6 4 to 13.6 Unit V V V V VCC1 VCC2 = VCC3 VCC1 = VCC3 5V type VCC2 Note: When boost-up voltage is used at VCC2, output can be set to low-saturation. No. 6231-2/8 LB11997H Electrical Characteristics at Ta = 25C, VCC1 = 5V, VCC2 = VCC3 = 12V Parameter [Power supply current] Power supply current Symbol Conditions min Ratings typ max Unit ICC1 ICC2 ICC3 VC = VCREF VC = VCREF VC = VCREF VS/S = 0V VS/S = 0V VS/S = 0V IO = -0.5A, VCC1 = 5V, VCC2 = VCC3 = 12V IO = 0.5A, VCC1 = 5V, VCC2 = VCC3 = 12V IO = -0.5A, VCC1 = VCC3 = 5V, VCC2 = 12V IO = 0.5A, VCC1 = VCC3 = 5V, VCC2 = 12V RRF = 0.33, LMC; OPEN RRF = 0.33, LMC; GND 1.2 8 0 150 250 200 30 30 mA mA A A A A Output idle current ICC1OQ ICC2OQ ICC3OQ [Output] Saturation voltage, upper side 1 lower side 1 Saturation voltage, upper side 2 lower side 2 Current limiter setting voltage VOU1 VOD1 VOU2 VOD2 VCL1 VCL2 1.0 0.3 0.3 0.3 0.24 0.35 V V V V V V [Hall amplifier] Common mode input voltage range Input bias current Minimum Hall input level [S/S pin] High level voltage Low level voltage Input current Leakage current [Control] VHCOM IHIB VHIN VS/SH VS/SL IS/SI IS/SL IVC IVCREF GVCO VCTH VCTH VH IH TTSD TTSD VBRH VBRL Design target value Design target value VCC1-1.0 1 V A 60 mVP-P VCC1 0.7 200 V V A A A A times 1.8 150 V mV 2.0 VS/S = 5V VS/S = 0V VC = VCREF = 1.65V VC = VCREF = 1.65V VRF/VC VCREF = 1.65V VCREF = 1.65V IH = 5 mA 20 1.5 50 0.35 -30 VC pin input current VCREF pin input current Voltage gain Startup voltage Startup voltage width [Hall power supply] Hall power supply voltage Allowable current [Thermal shutdown] Operating temperature Hysteresis [Short braking] Brake pin at High level Brake pin at Low level 1 1 0.8 V mA 150 180 15 210 C C 4 0 5 1 V V Note: * During S/S OFF (standby), the Hall comparator is at High. * Design target values are not measured. No. 6231-3/8 LB11997H Truth Table Hall input Source -> Sink U V Control W L VC H L H L H L H L H L H L 1 2 Phase W -> Phase V Phase V -> Phase W Phase W -> Phase U Phase U -> Phase W H H L H L L H L H 3 4 5 Phase V -> Phase W Phase W -> Phase V Phase U -> Phase V Phase V -> Phase U Phase V -> Phase U Phase U -> Phase V L H L L H H L H 6 Input: Phase U -> Phase W Phase W -> Phase U H: Input 1 is higher in potential than input 2 by at least 0.2V. L: Input 1 is lower in potential than input 2 by at least 0.2V. Brake Operation Truth Table BRAKE pin H Low or open Operation Short brake Normal rotation Pin Assignment PWR-GND 1 WOUT 2 NC 3 VC 4 VCREF 5 FC 6 LMC 7 28 VOUT 27 UOUT 26 VCC2 LB11997H 25 VCC3 24 NC 23 RF 22 VCC1 FRAME GND FRAME GND SIG-GND 8 NC 9 NC 10 S/S 11 BRAKE 12 FG 13 RS 14 21 UIN2 20 UIN1 19 VIN2 18 VIN1 17 WIN2 16 WIN1 15 VH Top view A12506 No. 6231-4/8 VCC1 RF VCC2 Block Diagram UIN1 + UIN2 - VIN1 Matrix + Waveform distributor VIN2 - UOUT VOUT WOUT WIN1 + WIN2 - PWR GND Current limiter Short brake VCC3 BRAKE LB11997H VH Hall power supply - - + + - Forward/ reverse VCREF VC LMC + - + Reference voltage Thermal shutdown SIG GND Rotation direction detector - + FG RS FC S/S A12507 No. 6231-5/8 LB11997H Pin Description Pin number 26 25 Pin name Pin voltage 4V to 13.6V 4V to 13.6V Equivalent circuit Pin function VCC2 VCC3 22 VCC1 4V to 6V 14 RS VCC1 100A 10k 14 13 13 FG A12508 Source side predrive voltage supply pin. Constant current control amplifier voltage supply pin. Power supply pin for all circuits except output transistors, source predriver, and constant current control amplifier. Reverse detector pin. Forward rotation: High Reverse rotation: Low 1 Hall element waveform Schmitt comparator composite output. U phase Hall element input and reverse detector U phase Schmitt comparator input pin. Logic High indicates UIN1 > UIN2. V phase Hall element input and reverse detector V phase Schmitt comparator input pin. Logic High indicates VIN1 > VIN2. W phase Hall element input and reverse detector W phase Schmitt comparator input pin. Logic High indicates WIN1 > WIN2. Hall element lower side bias voltage supply pin. 20 21 UIN1 UIN2 25A 20 18 16 25A 25A 200 VCC1 18 19 VIN1 VIN2 1.2V to VCC1-1V 200 21 19 17 16 17 WIN1 WIN2 VCC1 75A 15 A12509 15 VH 30k 2k A12510 VCC1 75k 11 S/S 0V to VCC1 11 50k A12511 When this pin is at 0.7V or lower, or when it is open, all circuits are inactive. When driving motor, set this pin to 2V or higher. 8 SIG GND GND pin for all circuits except output. VCC1 2k 6 FC 6 20k 5k A12512 Control loop frequency characteristics compensator pin. Connecting a capacitor between this pin and GND prevents closed loop oscillation in current limiting circuitry. Continued on next page No. 6231-6/8 LB11997H Continued from preceding page Pin number Pin name Pin voltage Equivalent circuit Pin function 5 VCREF 0V to VCC1 -1.5V 15A 25A 51k 200 200 25A 15A VCC1 Control reference voltage supply pin. Determines control start voltage. Speed control voltage supply pin. V type control technique VC > VCREF : Forward VC < VCREF : Slowdown (Reverse-blocking circuit prevents reverse rotation.) 4 VC 0V to VCC1 4 5 A12513 2 1 28 27 WOUT PWR GND VOUT UOUT VCC2 23 3.9 27 28 2 3.9 23 RF 1 A12514 VCC1 5k RF W phase output. Output transistor GND. V phase output. U phase output. Upper side output NPN transistor collector pin (common for all 3 phases). For current detection, connect resistor between VCC3 pin and RF pin. Constant current control and current limiter works by detecting this voltage. When this pin is connected to GND, the limiter setting current is increased by a factor of 1.5. 7 LMC 15k 7k 7 A12515 VCC1 100A 75k 12 BRAKE 50k 12 Short brake pin. BRAKE: High -> Short brake operation Low/Open -> Motor drive operation A12516 No. 6231-7/8 LB11997H 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 exported without obtaining 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 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, 1999. Specifications and information herein are subject to change without notice. PS No. 6231-8/8 |
Price & Availability of LB11997H
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