Ordering number :ENN6210A Monolithic Digital IC LB1989 Three-Phase Sensorless VCR Drum Motor Driver Functions and Features Package Dimensions • • • • • • unit: mm Soft switching drive No Hall sensors required. No FG sensors required. Built-in PG amplifier Thermal shutdown circuit Current limiter circuit 3222-HSOP28 15 0.5 7.6 5.6 28 1.0 [LB1989] 1 14 2.7 0.2 0.3 1.8max 0.8 0.1 15.2 0.8 SANYO: HSOP28 Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum supply voltage VCCmax 14.5 V Maximum output voltage VOmax 14.5 V Maximum input voltage VI1max –0.3 to VCC1 + 0.3 V Maximum cylinder current IOmax 1.0 A Allowable power dissipation Pdmax 0.6 W Operating temperature Topr Independent IC –20 to +75 °C Storage temperature Tstg –55 to +150 °C Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage Symbol Conditions Ratings 8 to 13.8 VCC 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 Company TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN D2499RM (OT) No. 6210-1/9 LB1989 Electrical Characteristics at Ta = 25°C, VCC = 12 V Parameter Current drain Internal power supply Symbol Conditions ICC VC = 0 V VREG VC = 0 V Output saturation voltage 1 VOSAT1 Output saturation voltage 2 VOU2 MC pin common-mode input voltage range VIC VC pin input bias current IVC Ratings min typ max Unit Test circuit 15 20 mA 1 5.0 5.4 V 2 IO = 0.4 A, Source + Sink 1.4 2.0 V 3 IO = 0.8 A, RF = 0 Ω, Source + Sink 1.8 2.6 V 4 4.6 0 VC = 0 V Control start voltage VTHVC Closed-loop control gain GMVC RF = 0.5 Ω PCOUT output current 1 IPCOU Source side PCOUT output current 2 IPCOD Sink side IVCOIN VCC – 2 –2 –1 2.3 2.55 0.75 0.95 V 5 µA 6 2.8 V 7 1.15 A/V 8 –90 µA 9 90 µA 10 VCOIN = 5 V 0.1 fVCOMIN Cx = 0.022 µF, With VCOIN open 400 Maximum VCO frequency fVCOMAX Cx = 0.022 µF, VCOIN = 5 V C1/C2 source current ratio RSOURCE IC1SOURCE / IC2SOURCE –12 +12 % 14 IC1SINK / IC2SINK –12 +12 % 15 16 VCOIN input current Minimum VCO frequency C1/C2 sink current ratio RSINK 0.2 18.5 µA 11 Hz 12 kHz 13 C1 source/sink current ratio RC1 IC1SOURCE / IC1SINK –35 +15 % C2 source/sink current ratio RC2 IC2SOURCE / IC2SINK –35 +15 % 17 S/S pin high level voltage VSSH V 18 S/S pin low level voltage VSSL S/S pin input current Thermal shutdown circuit operating temperature Thermal shutdown circuit hysteresis ISSI 4 VS/S = 5 V TTSD 150 ∆TTSD 180 0.7 V 19 200 µA 20 210 °C * * 15 °C [FG/PG Amplifier Block] Back EMF FG Output on voltage VOL Output off voltage VOH 0.4 VREG – 0.5 V 21 V 22 mV 23 nA 24 PG amplifier Input offset voltage VIO –8 Input bias current IBIN– – 250 Common-mode input voltage range VICOM Open-loop gain GVPG Output on voltage VOL Output off voltage VOH Schmitt amplifier hysteresis +8 0 f = 1 kHz VSHIS VREG– 1.5 55 0.4 VREG – 0.5 70 93 115 V * dB 25 V 26 V 27 mV 28 Note * : These are design target values and are not measured. No. 6210-2/9 LB1989 Pin Assignment LB1989 No. 6210-3/9 0. 1 µF 0.01 µF 0.47 µF 560 kΩ 2200 pF 2200 pF PGI N+ 200 Ω FC VC CX VCOIN PCOUT C2 C1 BFGO VREG 200 Ω 200 Ω 200 Ω PGIN- PLL Startup control circuit Thermal shutdown circuit VCO Soft switching drive circuit PGOUT1 PGOUT2 10 kΩ VREG 200 Ω Divide-by-8 circuit Timing control circuit Mask circuit Rotor position detection circuit S/S 1.2 V reference voltage Upper side saturation prevention control WOUT VOUT UOUT WIN VIN UIN MCOM VCC GND RF 0.5 Ω 0 to 0.01 µF × 3 LB1989 Block Diagram (Note that the external constants will vary depending on the motor used.) No. 6210-4/9 Output drive circuit LB1989 Pin Functions Pin No. Pin 27 UOUT 1 VOUT 2 WOUT 26 Pin voltage Equivalent circuit Function Drum motor driver outputs The lowest potential of the drum motor driver output transistors. Constant-current control is implemented by detecting this voltage. RF The current limiter also operates by detecting this voltage. Driver start/stop control 26 S/S High: Motor drives operating state Low: Standby state (power saving mode) 7 VCC 5 MCOM 8 UIN 9 VIN 10 WIN 11 C1 8 to 13.8 V Power supply Motor coil center input The coil voltage waveform is detected referenced to this voltage. Coil waveform detection comparator inputs Each phase output is connected through an internal 10 kΩ resistor. Sawtooth waveform generator capacitor connection This sawtooth waveform is used for soft switching in the coil output waveform. 12 C2 Continued on next page. No. 6210-5/9 LB1989 Continued from preceding page. Pin No. Pin Pin voltage Equivalent circuit Function The value of the capacitor connected between this pin and ground determines the operating frequency range and the minimum operating frequency for the VCO circuit. 13 CX 14 VCOIN The PCOUT pin voltage is RC filtered and the result is input to this pin. 15 PCOUT VCO circuit PLL output 16 GND 17 VREG VCO circuit voltage input Ground for all circuits other than the output transistor Internal 5 V regulator This pin provides the control system power. Continued on next page. No. 6210-6/9 LB1989 Continued from preceding page. Pin No. Pin Pin voltage Equivalent circuit Function 18 PGIN+ 19 PGIN– 20 PGOUT1 PG amplifier linear output 21 PGOUT2 PG Schmitt amplifier output 22 BFGO PG amplifier positive (+) input This pin is biased internally by 1/2 VREG. PG amplifier negative (–) input Motor back EMF detection FG output (synthesized from 3 phases) Continued on next page. No. 6210-7/9 LB1989 Continued from preceding page. Pin No. Pin Pin voltage Equivalent circuit Function Frequency characteristics correction 23 FC 24 VC Current control system closed loop oscillation can be stopped by inserting a capacitor between this pin and ground. Speed control 0 to VCC This IC implements constant-current control by applying feedback from RF. Allowable internal power dissipation Pd (W) Allowable Internal Power Dissipation Independent IC Ambient temperature Ta (°C) No. 6210-8/9 LB1989 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 December, 1999. Specifications and information herein are subject to change without notice. PS No.6210-9/9