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| Ordering number: EN5225 Monolithic Digital IC LB1896 3-phase Brushless Motor Driver for CD-ROM Spindle Drive Use Overview The LB1896 is a 3-phase brushless motor driver IC that is ideal for driving CD-ROM spindle motors. Package Dimensions unit : mm 3219-QFP34H-C [LB1896] 13.2 10.0 23 Functions and Features 1.6 1.6 13.2 10.0 0.35 34 1 6 7 4.0 0.1 2.2 2.45max SANYO : QFP34H - C Specifications Absolute Maximum Ratings at Ta = 25 C Parameter Maximum supply voltage Applied output voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC1 max VCC2 max VOU, V, W IOUT Pd max Topr Tstg Independent IC Conditions Ratings 20 7.0 20 1.2 0.77 -20 to +75 -55 to +150 Unit V V V A W C 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 13096HA(II) No.5225-1/8 0.8 11.6 v v v v 120 voltage linear technique V-type control voltage Switchable control gain Control, noncontrol, acceleration/deceleration mode select pins built in. v Start/Stop pin built in, Hall bias built in. 4.8 0.8 18 1.0 0.2 1.0 24 17 0.8 8.4 LB1896 Operating Conditions at Ta = 25 C Parameter Supply voltage VCref input voltage VNS input voltage Symbol VCC1 VCC2 VCref VNS VCC1 ^ VCC2 Conditions Ratings 5 to 18 4.3 to 6.5 VCC2/2 1.0 0 to VCC2 -1.0 Unit V V V V Allowable power dissipation, Pd max -- W Ambient temperature, Ta -- C Electrical Characteristics at Ta = 25 C, VCC1 = 12 V, VCC2 = 5 V Parameter Supply current 1 Supply current 2 Supply current 3 [Drive block] Output saturation voltage Output TRS sustaining voltage Output static voltage Hall amplifier input offset voltage Hall amplifier input bias current Hall amplifier common-mode input voltage range Hall input/output voltage gain Control/output drive gain 1 Control/output channel difference 1 Control/output drive gain 2 Control/output channel difference 2 Input dead zone voltage Input bias current 1 Input bias current 2 S/S pin high voltage S/S pin low voltage Gain control 1 high voltage Gain control 1 low voltage Gain control 2 high voltage Gain control 2 low voltage S/S pin input current Gain control 1, 2 current Rotation output saturation voltage Rotation output saturation sustaining voltage VO(sat)1 VO(sat)2 VO(sus) VOQ VH offset IH bias VHch GVHO GVCO1 GVCO1 GVCO2 GVCO2 VDZ IB SERVO IB n.s VS/S H VS/S L VGC1 H VGC1 L VGC2 H VGC2 L I S/S IGC V(sat) H.FG V(sus) H.FG RZ1 = RZ2, GC1 = L, GC2 = RZ1 = RZ2, GC1 = L, GC2 = RZ1 = RZ2, GC1 = L, GC2 = RZ1 = RZ2, GC1 = L, GC2 = RZ1 = RZ2, GC1 = L, GC2 = VO (voltage between out and 0.1 V VC = 1.0 V VNS = 1.0 V Input is CMOS level Note) S/S pin Vth = VCC2/2 Input is at CMOS level. Note) GC1 pin Vth = 2.0 V Input is at CMOS level. Note) GC2 pin Vth = 2.0 V Input voltage = 5 V Input voltage = 5 V IO = -5 mA L L H H L out) = IOUT = 0.4 A, sink + source IOUT = 0.8 A, sink + source IOUT = 20 mA VC = 2.5 V, VCref = 2.5 V 1.6 2.0 20 5.7 -5 6.0 1 1.3 40 26 -1.5 32 -1.9 13 43 29 35 +1.9 38 55 500 500 4 1 4 1 4 50 53 0.24 1 100 110 0.5 7 2.2 3.0 6.3 +5 5 2.2 46 +1.5 V V V V mV A V dB dB dB dB dB mV nA nA V V V V V V A A V V Symbol ICC1 ICC2 ICC3 VC = open, VS/S = 5 V VC = open, VC = open, VS/S = 0 V, Conditions VCref = open, RL = , VCref = open VCref = open, RL = , (ICC of VCC1) min typ 17 7.5 0.9 max 30 10.5 3 Unit mA mA mA Continued on next page. No.5225-2/8 LB1896 Continued from preceding page. Parameter Hall bias voltage CTRL pin high voltage CTRL pin low voltage CTRL input current TSD operation voltage TSD hysteresis Symbol VH VCTRL H VCTRL L ICTRL TSD TSD Conditions IO = 5 mA, RH = 200 Common for CTRL1 and CTRL2 input CMOS level Note) CTRL pin Vth = 2.5 V Input voltage = 5 V Design target Design target min 0.7 4 1.0 110 210 typ 0.97 max 1.2 Unit V V V A C C 150 53 180 15 Note) Vth is a design target and not measured. Mode Switching Truth Table CTRL0 L L H H CTRL1 L H L H Mode Control Noncontrol Acceleration Deceleration L H = 0 to 1.0 V = 4.0 V or more Hall Logic Truth Table Source Sink 1 2 3 4 5 6 WV VW WU UW VW WV UV VU VU UV UW WU Hall input UIN H H L L H L VIN H L L H L H WIN L L H L H H F/R Control Forward Reverse Forward Reverse Forward Reverse Forward Reverse Forward Reverse Forward Reverse An input is considered to be HIGH when UIN1 > UIN2, VIN1 > VIN2, and WIN1 > WIN2 by 0.2 V or more. Forward when VC > VCref Reverse when VC < VCref No.5225-3/8 LB1896 Pin Assignment Pin Functions Pin No. 3, 4 20, 21 2 23 22 19 Pin Name Frame GND GND UOUT VOUT WOUT Pin Voltage Equivalent Circuit Diagram Pin Function Frame GND. GND must be shared. GND Output pins. Motor connection 17 Rf Output Tr GND. A resistor can be connected between this pin and GND to sense the output current as a voltage drop to provide for overcurrent protection. Idle pins. 4.3 to 6.5 V v Power supply for blocks other than the output block. v This supply should be kept stable to prevent ripple and noise from entering this pin. v First-stage amplifier gain setting resistors. v Z1 and Z2 normally range from several tens of k to several hundreds of k. v The gain is about 6 dB. 18, 24 16 NC VCC2 15 14 Z1 Z2 Continued on next page. No.5225-4/8 LB1896 Continued from preceding page. Pin No. 13 12 Pin Name VC VCref Pin Voltage VCC2/2 1.0 Equivalent Circuit Diagram Pin Function v VC is the speed control pin. Forward when VC > VCref. Reverse when VC < VCref. VC is used to control the output voltage. v VCref determines the motor control stop voltage. VCC2/2 in normal use. 11 10 GC1 GC2 0 to VCC2 v Input/output gain switching pins. v GC1 is for first-stage amplifier Z1/Z2 switching. When GC1 is LOW, Z1 is selected; when HIGH, Z2 is selected. GC2 is for next-stage amplifier switching. 9 8 CTRL CTRL1 0 to VCC2 v Operation mode switching pins. v Refer to the Mode Switching Truth Table for selection of control, acceleration, or deceleration. 7 NS+ 0 to VCC2 - 1 V v Input pin at noncontrol mode. v The input-output gain is 14 dB. (GC2: LOW) v Motor stops when VNS = 0 V. 6 S/S 0 to VCC2 v When the S/S pin is HIGH, START; when LOW, STOP. v The threshold is VCC2/2. Continued on next page. No.5225-5/8 LB1896 Continued from preceding page. Pin No. 5 Pin Name FC Pin Voltage Equivalent Circuit Diagram Pin Function v Connect a capacitor between this pin and GND to reduce the input/output gain frequency response and to stop the oscillator. 1 34 33 32 31 30 WIN2 WIN1 VIN2 VIN1 UIN2 UIN1 1.3 to 2.2 V W-phase Hall device input pins. Logic ``H'' represent WIN1 > WIN2 V-phase Hall device input pins. Logic ``H'' represent VIN1 > VIN2 U-phase Hall device input pins. Logic ``H'' represent UIN1 > UIN2 29 28 VH+ VH- 2.4 V 1.4 V v Hall device power supply pins. A voltage difference of 1.0 V is developed between VH+ and VH-. 27 H.FG 0 to VCC2 v Hall FG pin. v The Hall waveform is converted into a pulse signal and then used as the FG pulse signal. 26 CL 0 to VCC2 v When the Rf pin voltage becomes equal to the CL pin voltage, the current limiter operate. The CL voltage is determined externally. 25 VCC1 5 to 18 V v Power supply for output block. v This supply should be kept stable to prevent ripple and noise from entering this pin. No.5225-6/8 LB1896 Block Diagram Start/Stop Absolute value detection Gain switching Mode switching Hall amplifier & Matrix & F/R switching Hall bias Sample Application Circuit No.5225-7/8 LB1896 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 January, 1996. Specifications and information herein are subject to change without notice. PS No.5225-8/8 |
Price & Availability of LB1896
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