Ordering number : ENA0954 LB11683H Monolithic Digital IC Three-Phase Sensorless Motor Driver http://onsemi.com 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 Symbol Conditions Ratings Unit Supply voltage VCC max 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 0.8 W Pd max2 Mounted on a board * 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. 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 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 * ΔTTSD 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) 3315 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 ground determines the driver ON/OFF time VREG 15μA 1μA 8 when the motor is locked. 25kΩ 2S No. A0954-6/7 LB11683H ON Semiconductor and the ON logo are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). 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