LB11983

Ordering number : EN7117B Monolithic Digital IC LB11983 Overview For Fan Motor Driver for Refrigerator 3-Phase Sensorless Motor Driver 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 Supply voltage Output application voltage Input application voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VO max VI max IO max Pd max Topr Tstg Independent IC Conditions Ratings 14.5 14.5 -0.3 to VCC+0.3 1.0 1.0 -30 to +85 -55 to +150 Unit V V V A W °C °C Operating Conditions at Ta = 25°C Parameter Supply voltage Symbol VCC Conditions Ratings 7 to 13.8 Unit 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 Supply current Output saturation voltage 1 Output saturation voltage 2 MCOM pin common-mode input voltage range PCOUT output current 1 PCOUT output current 2 VCOIN input current VCO minimum frequency VCO maximum frequency C1, C2 source current ratio C1, C2 sink current ratio C1 source and sink current ratio C2 source and sink current ratio Counter FG output ON volt Counter FG output OFF vol Thermal shutdown operating temperature Thermal shutdown hysteresis Symbol ICC VOsat1 VOsat2 VIC IPCOU IPCOD IVCOIN fVCOMIN fVCOMAX RSOURCE RSINK RC1 RC2 VOL VOH TTSD ΔTTSD Design target value * Design target value * 4 150 180 15 210 Source side Sink side VCOIN = 5V VCOIN = open VCOIN = 5V IC1SOURCE/IC2SOURCE IC1SINK/IC2SINK IC1SOURCE/IC1SINK IC2SOURCE/IC2SINK -12 -12 -35 -35 VC = VCC IO = 0.4A, Source + Sink IO = 0.8A, Source + Sink, RF = 0Ω 0 -90 90 0.1 400 18.5 +12 +12 +15 +15 0.4 0.2 Conditions min Ratings typ 20 1.4 1.8 max 30 2.0 2.6 VCC-2 mA V V V μA μA μA Hz kHz % % % % V V °C °C Unit Note : * These items are design target values and are not tested. Package Dimensions unit : mm (typ) 3021C 1.2 Pd max – Ta Independent IC 24.0 20 11 Allowable power dissipation, Pd max – W 1.0 7.62 6.4 0.25 0.8 1 1.0 10 0.6 3.3 3.9max (3.25) 0.4 (0.57) 2.54 0.5 1.2 0.51min 0.2 0 – 20 0 20 40 60 80 85 100 SANYO : DIP20(300mil) Ambient temperature, Ta – °C No.7117-2/7 LB11983 Pin Assignment VOUT WOUT MCOM VCC UIN VIN WIN C1 C2 1 2 3 4 5 20 UOUT 19 RF 18 NC 17 VC 16 FC LB11983 6 7 8 9 15 BFGO 14 GND 13 NC 12 PCOUT 11 VCOIN CX 10 Top view No.7117-3/7 VCC BFGO Rotor position detection circuit UIN VIN WIN MCOM Thermal shutdown circuit Masking circuit Startup control circuit Timing control circuit Soft switching drive circuit C1 C2 Output drive circuit UOUT VOUT WOUT LB11983 PLL 8-divider VCO PCOUT Beat lock preventive circuit 200Ω + Upper saturation prevention control GND RF VCOIN Block Diagram (External constant may vary depending on the motor used.) CX 0.5Ω VCC VC 200Ω + - 200Ω 0.1μF FC No.7117-4/7 LB11983 Pin Functions Pin No. 20 1 2 19 Pin name UOUT VOUT WOUT RF Minimum potential of the drum motor driver output transistor. This voltage is detected for constantcurrent control. The current limiter is also activated upon detection of this potential. Function Drum motor driver output pin. Equivalent circuit VCC 20μA 3.9Ω 30kΩ 3.9Ω 30kΩ 19 20 1 2 5 6 7 10kΩ 4 3 VCC MCOM Power supply pin. (8 to 13.8V) Middle point input pin of motor coil. The coil waveform is detected with reference to this voltage. VCC 20 1 5 7 2 10kΩ 200Ω 5 UIN Input pin of the coil waveform detection comparator. Connected to each phase output with a built-in resistor of 10kΩ 6 VIN 2kΩ 6 200Ω 200Ω 3 7 WIN 8 C1 Triangular wave generating capacitor connection pin. This triangsular wave causes soft switching of coil output waveform. VCC 8 15μA 15μA 9 5μA VREG 9 C2 1kΩ 2S 1/2VREG-VF 10 CX The operating frequency range and minimum operating frequency are determined from the value of capacitor connected to this pin and GND in the VCO circuit. VREG VCC 100μA 300Ω 10 11 VCOIN VCO circuit voltage input pin. Inputs the PCOUT pin voltage through CR filtering. VREG VCC 10kΩ 1.75V 11 50kΩ 50μA 50μA Continued on next page. No.7117-5/7 LB11983 Continued from preceding page. Pin No. 12 Pin name PCOUT Function VCO circuit PLL output pin. Equivalent circuit VREG VCC 12 14 15 GND BFGO GND for others than the output transistor. FG output to detect motor reverse feeder voltage. (Composition of three phases) VCC VREG + VF VREG 100μA 5kΩ 15 16 FC Frequency characteristics compensation pin. Insertion of a capacitor between this pin and GND stops oscillation of the current control closed loop. VREG VCC 1kΩ 16 10kΩ 5kΩ 17 VC Speed control pin. The control is a constant-current control under current feedback from RF. Normally, this pin is connected to VCC for use. VCC 50μA 40kΩ 17 200Ω 50μA VREG 27kΩ 24kΩ No.7117-6/7 LB11983 Sample Application Circuit (Reference) 0.022μF 0.022μF 1 2 3 4 5 6 7 VOUT WOUT MCOM VCC UIN VIN WIN C1 C2 UOUT 20 RF 19 NC 18 VC 17 FC 16 BFGO 15 GND 14 NC 13 PCOUT 12 560kΩ 10 CX VCOIN 11 0.47μF Top view Connect to VCC 0.1μF 0.5Ω 0.022μF LB11983 0.022μF 8 0.022μF 9 0.022μF to 0.047μF 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