Ordering number : ENA2075 LB11669MC Monolithic Digital IC For Fan Motor http://onsemi.com Two-Phase Half-Wave Driver Overview The LB11669MC is a two-phase uni-polar brushless motor driver for fan motor. Functions • Two-phase half-wave drive. incorporated. • RD (lock detection) outputs incorporated. • FG (rotation detection) outputs incorporated. • Thermal shutdown circuit incorporated. • Lock protection and automatic return function • Output protection zener diode incorporated. • Hall input amplifier incorporated. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum inflow current Output current Symbol Conditions IIN max Unit 100 IOUT ave IOUT peak Ratings Only when starting and lock protection is mA 400 mA 800 mA activated Output withstand voltage VOUT max Internal V FG/RD output current IFG/RD max 10 mA FG/RD output withstand voltage VFG/RD max 30 V 750 mW Allowable power dissipation Pd max Mounted on a board * 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. Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time. Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details. Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 May, 2013 62012 SY 20120329-S00002 No.A2075-1/4 LB11669MC Recommended Operating Conditions at Ta = 25°C Parameter Symbol Inflow current range Conditions Ratings Unit IIN Common-mode input voltage range 5 to 25 VCOM 0.2 to VIN -2.3 mA V Electrical Characteristics at Ta = 25°C, VCC=24V, R1=1kΩ, unless otherwise specified. Parameter Symbol Ratings Conditions min IIN = 6mA typ 5.95 Unit max VIN voltage VIN 6.3 6.65 V CT capacitor charging current ICT1 CT = 0.5V 1.8 Capacitor dis-charging current ICT2 CT = 6.0V 0.15 2.55 3.4 μA 0.23 0.31 Capacitor charging / dis-charging RCT RCT = ICT1 / ICT2 10.5 11 14.5 μA current ratio CT charging voltage VCTH VCT / VIN 74 79 84 % CT dis-charging voltage VCTL VCT / VIN 41 46 51 % Output limit withstand voltage VOLM IO = 100mA 49 52 55 V Output saturation voltage VOL1 IO = 200mA 0.85 1.1 V Hall input sensitivity VHN Including offset and hysteresis ±15 ±30 mV VFG/RD IFG/RD = 5mA 0.15 0.3 V FG/RD output leak current IFGL/RDL VFG/RD = 14V 0.1 10 μA Thermal protection function TSD Design target value * 180 FG/RD output saturation voltage °C operating temperature * Design target value and is not measured. Package Dimensions unit : mm (typ) 3426A 5 0.41 1.75 MAX 0.21 1.5 1.0 Pd max – Ta 1000 Specified board : 114.3×76.1×1.6mm3 glass epoxy 800 600 400 390 200 0 – 30 0 30 60 90 120 Ambient temperature, Ta – °C 0.175 1 0.835 0.37 6.0 6 3.9 10 Allowable power dissipation, Pd max – mW 4.9 SANYO : SOIC10 No.A2075-2/4 LB11669MC Pin Assignment CT 7 OUT2 6 5 OUT1 VIN 8 4 NC FG 9 3 IN- LB11669MC 2 IN+ 10 1 RD GND Top View Block Diagram L1 R1 Thermal protection VIN VCC HALL L2 OUT1 Control block IN+ OUT2 IN- Constant current circuit FG CT RD GND Truth table IN- IN+ H L L H H L CT OUT1 OUT2 FG RD H L L L L H OFF L OFF OFF L OFF OFF OFF OFF OFF L Rotation H L H Mode Lock protection No.A2075-3/4 LB11669MC Application Circuit Example 24V power supply VCC R1=1kΩ VIN R2=2kΩ H IN+ OUT1 IN- OUT2 FG CT RD GND Substrate parts Notice • Take care not to cause interference due to wiring of IN- and OUT1. • Wiring need to be short to prevent carrying of the noise. If the noise is carried, insert a capacitor between IN+ and IN-. • In application of connecting the CT pin to GND, lock protection and restart function are not effective. ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. SCILLC reserves the right to make changes without further notice to any products herein. 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SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PS No.A2075-4/4