LB11668MC

LB11668MC ONSEMI | Alldatasheet

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N0712NKPC 20121001-S00001 No.A2142-1/7 http://onsemi.com Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Oper ating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Semiconductor Components Industries, LLC, 2013 May, 2013 LB11668MC Overview The LB11668MC is a two-phase uni-polar brushless motor driver for fan motor. Functions

• Two-phase half-wave drive. • Lock protection and automatic return function incorporated.
• RD (lock detection) outputs incorporated. • Output protection zener diode incorporated.
• FG (rotation detection) outputs incorporated. • Hall input amplifier incorporated.
• Thermal shutdown circuit incorporated. Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Conditions Ratings Unit Maximum inflow current I IN max 100 mA IOUT ave 400 mA Output current IOUT peak 800 mA Output withstand voltage V OUT max Internal V RD output current I RD max 10 mA RD output withstand voltage V RD max 28 V Allowable dissipation Pd max Mounted on a board * 750 mW Operating temperature Topr -30 to +85 °C Storage temperature Tstg -55 to +150 °C * Specified board : 114.3mm × 76.1mm × 1.5mm, glass epoxy board. Monolithic Digital IC For Fan Motor Two-Phase Half-Wave Driver

No.A2142-2/7 Recommended Operating Conditions at Ta = 25°C Parameter Symbol Conditions Ratings Unit Inflow current range I IN1 5 to 25 mA Common-mode input voltage range VCOM 0.2 to V IN -2.3 V Electrical Characteristics at Ta = 25°C, VCC = 24V , R1 = 1kΩ, unless otherwise specified. Ratings Parameter Symbol Conditions min typ max Unit VIN voltage V IN I IN = 6mA 6.9 7.2 7.6 V CT capacitor charging current I CT1 CT = 0V 0.8 1.2 2.0 μA Capacitor discharging current I CT2 CT = 6.0V 0.12 0.24 0.4 μA Capacitor charging/ discharging current ratio RCT R CT = ICT1 / ICT2 4.0 5.0 7.0 CT charging voltage V CTH V CT/VIN 66 70 74 % CT discharging voltage V CTL V CT/VIN 36 40 44 % Output limit withstand voltage V OLM I O = 10mA 50 53 56 V Output saturation voltage V OL1 I O = 200mA 0.85 1.1 V Hall input sensitivity V HN Including offset and hysteresis 8 18 mV RD output saturation voltage V RD I RD = 5mA 0.2 0.5 V RD output leak current I RD V RD = 14V 0.1 10 μA Thermal protection function operating temperature VTH Design target value * 150 180 210 °C * "Design" is a design target and is not measured. Package Dimensions unit : mm (typ) 3426A SANYO : SOIC10 4.9 3.9 6.0 610 0.835 0.21 0.37 0.411.0 0.175 1.5

1.75 MAX 0

0.2 0.6 0.4 0.8 0.39 1.0 --30 0 90 6030 120 Pd max -- Ta Ambient temperature, Ta -- °C Allowable power dissipation, Pd max -- W Mounted on the specified board: 114.3×76.1×1.6mm3 glass epoxy

No.A2142-3/7 Pin Assignment RD NC IN+ 2 IN- 4 OUT1 5 VIN10 CT NC OUT27 GND6 Top view LB11668MC Block Diagram VIN RD CT 0.1 to 1μF H IN+ IN- OUT2 OUT1 R1 Thermal protection Control block VCC Constant current circuit GND L1 L2 Truth table IN- IN + CT OUT1 OUT2 RD Mode H L L H L H L H L L Rotation - - H OFF OFF H Lock protection

No.A2142-4/7 VIN1 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 AIIN=6mA V ICT1 VCC=24V R1=1k Ω 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 A ICT2 VCC=24V R1=1k Ω 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 VCT=6V RCT=ICT1/ICT2 A

No.A2142-5/7 VCTH, VCTL VCC=24V VCTR1=1kΩ 10kΩ 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 V VM VOLM VCC=24V R1=1k Ω 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 IO=10mA V VOL1 VCC=24V R1=1k Ω 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 V IO=500mA

No.A2142-6/7 VHN VCC=24V R1=1kΩ 10kΩ 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 VM V VRD VCC=24V R1=1k Ω IRD=5mA 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 V VRL VCC=24V VCT=6V VRD=14V R1=1kΩ 10 9 8 7 6 VIN CT NC OUT2 GND RD IN + NC IN - OUT1 1 2 3 4 5 A

PS No.A2142-7/7 Application Circuit Example 24V power supply VIN IN- IN+ CT GND OUT2 OUT1 RD H R2=2kΩ 0.1 to 1μF Substrate parts R1=1kΩ VCC Notice

• Take care not to cause interference due to wiring of IN- and OUT1.
• In an application of connecting the CT pin to GND, lock protection and restart function are not effective.
• With reverse power - GND connection in the above application figure, the current restricted by the coil resistance flows from GND → OUT → coil → power supply. IC breakage does not occur if the current value is 500mA or less. If necessary, insert Di between VCC and coil. 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 warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequentia l or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s techn ical experts. SCILLC does not convey any license under its patent rights nor the rights of others. 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 productsfor any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, anddistributors 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 oft h e 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.