Ordering number : ENA0954 LB11683H Monolithic Digital IC Three-Phase Sensorless Motor Driver Overview The LB11683H is a three-phase full-wave current-linear-drive motor driver IC. It adopts a sensorless control system without the use of a Hall effect device. For quieter operation, the LB11683H features a current soft switching circuit and is optimal for driving the cooling fan motors used in refrigerators, etc. Functions • Current linear drive • Built-in current limiter circuit • Output stage oversaturation prevention circuit • Coil counter-electromotive FG output • Built-in thermal shutdown circuit • Beat lock prevention circuit • Lock protection circuit • Lock detection output Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Supply voltage Symbol Conditions VCC max Ratings Unit 14.5 V Output applied voltage VO max 14.5 V Input applied voltage VI max -0.3 to VCC+0.3 V Output current IO max 1.5 A Allowable power dissipation Pd max1 Independent IC Pd max2 Mounted on a board * 0.8 W 1.85 W Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C * Specified board: 114.3mm ×76.1mm ×1.6mm, glass epoxy board. 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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. 91907 MS PC B8-8741 No. A0954-1/7 LB11683H Allowable Operating Conditions at Ta = 25°C Parameter Symbol Conditions Supply voltage 1 VCC All operating circuits other than internal 5V Reg. Supply voltage 2 VCC All operating circuits. Ratings Unit 5.5 to 7.0 V 7.0 to 13.8 V Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Supply current Unit max VC=VCC VFC=0V 10 15 mA Output saturation voltage 1 VOSAT1 IO=0.4A, Source+Sink 1.4 2.0 V Output saturation voltage 2 VOSAT2 IO=0.8A, Source+Sink, RF=0Ω 1.8 2.6 V VCC-2 V MCOM pin common-phase input ICC typ VIC 0 voltage range µA PCOUT output current 1 IPCOU Source side PCOUT output current 2 IPCOD Sink side 90 VCOIN input current IVCOIN VCOIN=5V 0.1 0.2 µA 330 400 500 Hz 14.8 18.5 22.3 kHz VCO minimum frequency fVCOMIN VCOIN=open CX=0.022µF VCO maximum frequency fVCOMAX VCOIN=5V CX=0.022µF C1, C2 source current ratio µA 1-(IC1SOURCE/IC2SOURCE) -12 +12 % RSINK 1-(IC1SINK/IC2SINK) -12 +12 % C1 source, sink current ratio RC1 IC1SOURCE/IC1SINK 50 % C2 source, sink current ratio RC2 IC2SOURCE/IC2SINK 50 % Counter-electromotive FG output VOL IFGO=1mA CT pin charge current ICT1 Source current 1.2 1.6 CT pin discharge current ICT2 Sink current 50 77 Lock protection detection voltage VRD1 2.3 2.45 2.6 Lock protection reset voltage VRD2 1.13 1.26 1.39 V 10 µA C1, C2 sink current ratio RSOURCE -90 0.4 ON voltage RD pin leak current RD pin output LO voltage IRDLEAK VRDL IO=1mA Current limiter setting voltage Thermal shutdown operating TTSD Design target * ∆TTSD Design target * temperature Thermal shutdown hysteresis V µA nA V 100 400 mV 0.45 0.5 0.55 V 150 180 210 °C 15 °C *: Design target value and no measurement is made. No. A0954-2/7 LB11683H Package Dimensions unit : mm (typ) 3234B Pd max -- Ta Allowable power dissipation, Pd max -- W 2.0 HEAT SPREADER 15.2 (6.2) 0.65 7.9 10.5 15 (4.9) 28 14 1 0.8 2.0 0.25 0.3 (2.25) 2.45 max (0.8) 1.6 1.2 0.96 Independent IC 0.8 0.42 0.4 0 -20 0.1 2.7 Mounted on a specified board: 114.3×76.1×1.6mm3 glass epoxy board 0 20 40 60 80 85 100 Ambient temperature, Ta -- °C SANYO : HSOP28HC(375mil) Pin Assignment UOUT 1 28 VOUT NC 2 27 WOUT RF 3 26 MCOM NC 4 25 NC NC 5 LB11683H FC 6 24 NC 23 NC BFGO 7 22 VCC CT 8 21 UIN RD 9 20 VIN NC 10 19 WIN NC 11 18 C1 GND 12 17 C2 GND 13 16 CX PCOUT 14 15 VCOIN Top view No. A0954-3/7 0.1µF 0.022µF 0.47µF 560kΩ 0.022µF 0.022µF 50kΩ FC CX VCOIN PCOUT C2 C1 BFGC PLL Startup control circuit Thermal shutdown circuit 0.5V VCO Soft switching driver circuit 200Ω Beat lock prevention circuit 8 divider Timing control circuit Mask circuit Rotor detection circuit Lock protection circuit Upper side saturation prevention control WOUT VOUT UOUT MCOM VCC CT RD 50kΩ GND RF 0.5Ω 0.01µF 0.1µF LB11683H Block Diagram Output drive circuit ILB01810 No. A0954-4/7 LB11683H Pin Functions Pin No. Symbol 1 UOUT 28 VOUT 27 WOUT 3 RF Description Pin Voltage Equivalent Circuit 3-phase motor driver output VCC 3.9kΩ 20µA 10kΩ 30kΩ Minimum potential of 3-phase motor driver output transistor. 1 27 28 3.9kΩ Constant current control is made through 30kΩ detection of this voltage. The current limiter 3 21 20 19 also functions by detecting this potential. 22 VCC 26 MCOM Power supply Motor coil neutral point input pin. The coil voltage waveform is detected with 8 to 13.8V VCC 1 28 27 UIN Coil waveform detection comparator input pin. This pin is connected to each phase output through the internal 10kΩ resistor. 20 VIN 19 WIN 18 C1 21 20 19 200Ω 26 200Ω 2kΩ 21 10kΩ reference to this voltage. 200Ω Triangular wave generating capacitor VCC connection pin. This triangular wave performs soft-switching of 15µA 18 17 15µA the coil output waveforms. VREG 5µA 1kΩ 17 C2 2S 16 CX 1/2VREG-VF In the VCO circuit, the operation frequency VREG VCC range and minimum operation frequency are determined by means of the capacitor value 100µA connected this pin and ground. 300Ω 16 15 VCOIN VCO circuit voltage input pin. VREG The PCOUT pin voltage is input via CR filter. VCC 10kΩ 50kΩ 1.75V 15 50µA 50µA Continued on next page. No. A0954-5/7 LB11683H Continued from preceding page. Pin No. 14 Symbol PCOUT Description Pin Voltage Equivalent Circuit VCO circuit PLL output VCC VREG 14 12 GND Ground for all other than the output transistor 13 7 BFGO Motor counter-electromotive voltage detection VREG FG output (single-phase only). 100µA Open collector output 6 FC 7 Frequency characteristics compensation pin. VREG Insertion of a capacitor between this pin and VCC ground stops oscillation of the closed loop of 1kΩ current control system. 9 RD Lock detection output. 5kΩ 10kΩ 6 VREG When motor is running: low-level When motor is locked: high-level 15kΩ 9 Open collector output 8 CT Lock protection ON/OFF time setting capacitor VCC connection pin. The capacitor connected between this pin and 0.1µA 1µA ground determines the driver ON/OFF time VREG 15µA 8 when the motor is locked. 25kΩ 2S No. A0954-6/7 LB11683H 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 September, 2007. Specifications and information herein are subject to change without notice. PS No. A0954-7/7