Ordering number : EN7117B Monolithic Digital IC For Fan Motor Driver for Refrigerator LB11983 3-Phase Sensorless Motor Driver Overview The LB11983 is a 3-phase full-wave current linear sensorless motor driver. It is optimal for refrigerator fan motor drive. Features • Current linear driving technique. • Current limiter circuit. • Over saturation prevention circuit for output stage. • Provides coil back EMF FG output. • Thermal shoutdown circuit. • Beat lock pervention circuit. Specifications Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Supply voltage VCC max Output application voltage VO max Input application voltage VI max -0.3 to VCC+0.3 V Output current IO max 1.0 A Allowable power dissipation Pd max 1.0 W Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C Independent IC 14.5 V 14.5 V Operating Conditions at Ta = 25°C Parameter Supply voltage Symbol VCC Conditions Ratings Unit 7 to 13.8 V Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to "standard application", intended for the use as general electronics equipment (home appliances, AV equipment, communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use. Specifications of any and all SANYO Semiconductor Co.,Ltd. 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. 91008 MS PC/D2002RM (OT) No.7117-1/7 LB11983 Electrical Characteristics at Ta = 25°C, VCC = 12V Parameter Symbol Ratings Conditions min Unit typ max Supply current ICC VC = VCC 20 30 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 2.6 V MCOM pin common-mode input voltage range VIC PCOUT output current 1 IPCOU Source side PCOUT output current 2 IPCOD Sink side VCOIN input current IVCOIN VCOIN = 5V 0.1 VCO minimum frequency fVCOMIN VCOIN = open 400 Hz VCO maximum frequency fVCOMAX VCOIN = 5V 18.5 kHz C1, C2 source current ratio RSOURCE IC1SOURCE/IC2SOURCE -12 +12 C1, C2 sink current ratio RSINK IC1SINK/IC2SINK -12 +12 % C1 source and sink current ratio RC1 IC1SOURCE/IC1SINK -35 +15 % C2 source and sink current ratio RC2 IC2SOURCE/IC2SINK -35 +15 % Counter FG output ON volt VOL 0.4 V Counter FG output OFF vol VOH 1.8 0 VCC-2 V -90 μA 90 μA μA 0.2 % 4 Thermal shutdown operating temperature TTSD Design target value * Thermal shutdown hysteresis ΔTTSD Design target value * V 150 180 °C 210 °C 15 Note : * These items are design target values and are not tested. Package Dimensions unit : mm (typ) 3021C Pd max – Ta 24.0 1 0.25 11 7.62 6.4 20 10 (3.25) 2.54 0.5 1.2 0.51min (0.57) 3.3 3.9max 1.0 SANYO : DIP20(300mil) Allowable power dissipation, Pd max – W 1.2 1.0 Independent IC 0.8 0.6 0.4 0.2 0 – 20 0 20 40 60 80 85 100 Ambient temperature, Ta – °C No.7117-2/7 LB11983 Pin Assignment VOUT 1 20 UOUT WOUT 2 19 RF MCOM 3 18 NC VCC 4 17 VC UIN 5 16 FC VIN 6 15 BFGO WIN 7 14 GND C1 8 13 NC C2 9 12 PCOUT LB11983 CX 10 11 VCOIN Top view No.7117-3/7 0.1μF VCC FC VC CX VCOIN PCOUT C2 C1 BFGO PLL 200Ω 200Ω Startup control circuit - + VCO Timing control circuit Masking circuit Thermal shutdown circuit + - 200Ω Beat lock preventive circuit 8-divider Soft switching drive circuit Rotor position detection circuit Upper saturation prevention control WOUT VOUT UOUT MCOM VCC GND RF WIN VIN UIN 0.5Ω LB11983 Block Diagram (External constant may vary depending on the motor used.) Output drive circuit No.7117-4/7 LB11983 Pin Functions Pin No. Pin name 20 UOUT 1 VOUT 2 WOUT 19 RF Function Equivalent circuit Drum motor driver output pin. VCC 20μA Minimum potential of the drum motor driver output 3.9Ω transistor. This voltage is detected for constantcurrent control. 10kΩ 30kΩ The current limiter is also activated upon detection of this potential. 3.9Ω 20 5 1 6 2 7 30kΩ 19 4 VCC 3 MCOM Power supply pin. (8 to 13.8V) Middle point input pin of motor coil. The coil VCC waveform is detected with reference to this 20 1 voltage. UIN Input pin of the coil waveform detection 5 comparator. Connected to each phase output with 6 a built-in resistor of 10kΩ 6 VIN 7 WIN 8 C1 10kΩ 2kΩ 5 2 7 200Ω 3 200Ω 200Ω Triangular wave generating capacitor connection VCC pin. This triangsular wave causes soft switching of coil output waveform. 8 15μA 9 15μA 1kΩ C2 CX 5μA 9 2S 10 VREG 1/2VREG-VF The operating frequency range and minimum VREG operating frequency are determined from the value VCC of capacitor connected to this pin and GND in the 100μA VCO circuit. 300Ω 10 11 VCOIN VCO circuit voltage input pin. VREG Inputs the PCOUT pin voltage through CR filtering. VCC 10kΩ 50kΩ 1.75V 11 50μA 50μA Continued on next page. No.7117-5/7 LB11983 Continued from preceding page. Pin No. Pin name 12 PCOUT Function Equivalent circuit VCO circuit PLL output pin. VCC VREG 12 14 GND 15 BFGO GND for others than the output transistor. FG output to detect motor reverse feeder voltage. VCC (Composition of three phases) VREG + VF VREG 100μA 5kΩ 15 16 FC Frequency characteristics compensation pin. VREG VCC Insertion of a capacitor between this pin and GND stops oscillation of the current control closed loop. 1kΩ 16 10kΩ 17 VC Speed control pin. VREG VCC The control is a constant-current control under current feedback from RF. 5kΩ 50μA 50μA 27kΩ Normally, this pin is connected to VCC for use. 40kΩ 17 200Ω 24kΩ No.7117-6/7 LB11983 Sample Application Circuit (Reference) 0.022μF 0.022μF 0.022μF 1 VOUT UOUT 20 2 WOUT RF 19 3 MCOM NC 18 4 VCC VC 17 0.5Ω Connect to VCC 0.1μF 5 UIN 6 VIN BFGO 15 7 WIN GND 14 8 C1 NC 13 9 C2 PCOUT 12 10 CX VCOIN 11 LB11983 FC 16 0.022μF 0.022μF 560kΩ 0.022μF to 0.047μF 0.47μF Top view Notes 1. Be sure to connect the VC pin to VCC directly before use. 2. For the constant of capacitor, etc., our value established through examination is given for reference. Adjust the value according to the motor to be used when considering this IC. 3. If the output is not oscillated with the motor used, a capacitor inserted between output coil ends is not necessary. 4. Pins 5 through 7 (UIN, VIN, and WIN) are not to be used by a user. These are connected inside IC and should always be kept independent and open. 5. NC pins (14 and 18) are not connected inside IC and can be used as relay pins. 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, 2008. Specifications and information herein are subject to change without notice. PS No.7117-7/7