LB11685AV-TLM-H

LB11685AV Monolithic Digital IC 3‐phase Sensor Less Motor Driver Overview The LB11685AV is a three-phase full-wave current-linear-drive motor driver IC. It adopts a sensor less control system without the use of a Hall Effect device. For quieter operation, the LB11685AV features a current soft switching circuit and be optimal for driving the cooling fan motors used in refrigerators, etc. www.onsemi.com Functions • • • • • • • • Three-phase Full-wave Linear Drive (Hall Sensor-less Method) Built-in Current Limiter Circuit Built-in Three-phase Output Voltage Control Circuit Built-in Motor Lock Protection Circuit Motor Lock Protection Detection Output FG Output Made by Back EMF Built-in Thermal Shut Down Circuit Beat Lock Prevention Circuit SSOP24J CASE 565AS MARKING DIAGRAM XXXXXXXXXX YMDDD Specifications MAXIMUM RATINGS (TA = 25°C) Ratings Unit VCC max 19 V XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data Input Applied Voltage VIN max −0.3 to VCC + 0.3 V PIN ASSIGNMENT Maximum Output Current IO max (Note 1) 1.2 A Allowable Power Dissipation Pd max 1.05 W Parameter Symbol Maximum Supply Voltage Conditions Mounted on a board (Note 2) Operating Temperature Topr −40 to +85 °C Storage Temperature Tstg −55 to +150 °C Junction Temperature Tj max 150 °C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. 1. The IO is a peak value of motor-current. 2. Specified board: 76.1 mm × 114.3 mm × 1.6 mm, glass epoxy board. CAUTION: Absolute maximum ratings represent the value which cannot be exceeded for any length of time. CAUTION: UOUT (NC) (NC) PGND MCOM (NC) SGND FG RD (NC) VCO CX 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VOUT WOUT (NC) (NC) RF VCC REG VOH FC1 FC2 C2 C1 ORDERING INFORMATION See detailed ordering and shipping information on page 7 of this data sheet. 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. © Semiconductor Components Industries, LLC, 2013 January, 2018 − Rev. 1 1 Publication Order Number: LB11685AV/D LB11685AV RECOMMENDED OPERATING CONDITIONS (TA = 25°C) Parameter Symbol VCC VCC op Conditions Recommended Supply Voltage Operating Supply Voltage Ratings Unit 12.0 V 4.5 to 18.0 V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted) Parameter Symbol ICC Conditions Supply Current FC1 = FC2 = 0 V VREG Internal Regulate Voltage VOSOUR Output Voltage (Source) IO = 0.8 A (Note 5) VOSINK Output Voltage (Sink) IO = 0.8 A (Note 5) VOLIM Current Limiter Min Typ Max Unit 5 10 20 mA 3.0 3.3 3.6 V 1.3 1.7 V 0.5 1.3 V 0.300 0.332 V 0 VCC − 2 V 0.268 VINCOM MCOM Pin Common-input Voltage Range ICOM+ MCOM Pin Source Current for Hysteresis MCOM = 7 V 30 80 mA ICOM− MCOM Pin Sink Current for Hysteresis MCOM = 7 V 30 80 mA RTCOM MCOM Pin Hysteresis Current Ratio RTCOM = ICOM+ / ICOM− 0.6 1.4 IVCO VCO Input Bias Current VCO = 2.3 V fVCOmin VCO Oscillation Minimum Frequency VCO = 2.1 V, CX = 0.015 mF Design target (Note 4) 930 Hz fVCOmax VCO Oscillation Maximum Frequency VCO = 2.7 V, CX = 0.015 mF Design target (Note 4) 8.6 kHz CX Charge/Discharge Current VCO = 2.5 V, CX = 1.6 V ICX 0.2 70 100 140 0.35 0.55 0.75 mA mA DVCX CX Hysteresis Voltage IC1(2)+ C1 (C2) Charge Current VCO = 2.5 V, C1(2) = 1.3 V 12 20 28 mA IC1(2)− C1 (C2) Discharge Current VCO = 2.5 V, C1(2) = 1.3 V 12 20 28 mA RTC1(2) C1 (C2) Charge/Discharge Current Ratio RTC1(2) = IC1(2)+ / IC1(2)− 0.8 1.0 1.2 RTCCHG C1/C2 Charge Current Ratio RTCCHG = IC1+ / IC2+ 0.8 1.0 1.2 RTCDIS C1/C2 Discharge Current Ratio RTCDIS = IC1− / IC2− 0.8 1.0 1.2 VCW1(2) C1 (C2) Cramp Voltage Width 1.0 1.3 1.6 V VFGL FG Output Low Level Voltage IFG = 3 mA 0.5 V VRDL RD Output Low Level Voltage IRD = 3 mA 0.5 V TTSD Thermal Shut Down Operating Temperature (Note 3) Junction temperature Design target (Note 4) DTTSD Thermal Shut Down Hysteresis Temperature (Note 3) Junction temperature Design target (Note 4) 150 180 °C 15 °C Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be indicated by the Electrical Characteristics if operated under different conditions. 3. The thermal shut down circuit is built-in for protection from damage of IC. But its operation is out of Topr. Design thermal calculation at normal operation. 4. Design target value and no measurement is made. 5. The IO is a peak value of motor-current. www.onsemi.com 2 LB11685AV Allowable Power Dissipation, Pd max (W) 1.5 Specified circuit board: 114.3 × 76.1 × 1.6 mm3 glass epoxy board 1.05 1.0 0.55 0.5 0 −40 −20 0 20 40 60 Ambient Temperature, TA (5C) Figure 1. Pd max − TA www.onsemi.com 3 80 100 LB11685AV BLOCK DIAGRAM 1 24 2 23 3 22 Pre Drive Distributor 4 21 Output Switching Control 5 Start Up & Mask Timing 6 7 Reference Voltage 20 Bandgap 19 Power On Reset 18 TSD 8 Motor Lock Detector 17 Torque Ripple Rejection & Current Limit 9 FG 10 16 15 PLL Low Voltage Control 11 14 Soft Switching VCO 12 13 Figure 2. Block Diagram www.onsemi.com 4 LB11685AV PIN FUNCTION PIN FUNCTION Pin Name 1 23 24 UOUT WOUT VOUT Each output pin of three phases. 4 PGND GND pin in the output part. This pin is connected to GND. The SGND pin is also connected to GND 20 5 RF MCOM Function ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. Equivalent Circuit Pin No. 20 Pin No. 1, 23, 24 Pin to detect output current. By connecting a resistor between this pin and VCC, the output current is detected as a voltage. The current limiter is operated by this voltage. Pin No. 4 Motor coil midpoint input pin. The coil voltage waveform is detected based on this voltage. SGND SGND SGND VCC VCC Pin No. 5 SGND SGND 7 SGND 8 FG 9 11 RD VCO Ground pin (except the output part) This pin is connected to GND. The PGND pin is also connected to GND. FG out made by back EMF pin. It synchronizes FG out with inverted V-phase. When don’t use this function, open this pin. Motor lock protection detection output pin. Output with L during rotation of motor. Open during lock protection of motor (High-impedance). When don’t use this function, open this pin. PLL output pin and VCO input pin. To stabilize PLL output, connect a capacitor between this pin and GND. Pin No. 8, 9 SGND SGND VREG VCC Pin No. 11 VREG SGND VREG 500 kW SGND www.onsemi.com 5 LB11685AV PIN FUNCTION (continued) ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. Pin Name Function Equivalent Circuit 12 CX VCO oscillation output pin. Operation frequency range and minimum frequency are determined by the capacity of the capacitor connected to this pin. VREG VCC Pin No. 12 SGND SGND 13 14 C1 C2 Soft switching adjustment pin. The triangular wave from is form formed by connecting a capacitor with this pin. And, the switching of three-phase output is adjusted by the slope. VCC Pin No. 13, 14 SGND SGND 15 FC2 Frequency characteristic correction pin 2. To suppress the oscillation of control system closed loop of sink-side, connect a capacitor between this pin and GND. VREG VCC Pin No. 15 SGND SGND 16 FC1 Frequency characteristic correction pin 1. To suppress the oscillation of control system closed loop of source-side, connect a capacitor between this pin and GND. VCC Pin No. 16 SGND SGND 17 VOH Three-phase output high level output pin. To stabilize the output voltage of this pin, connect a capacitor between this pin and the VCC pin. VCC VCC SGND Pin No. 17 SGND 18 VREG DC voltage (3.3 V) output pin. Connect a capacitor between this pin and GND for stabilization. VCC VCC Pin No. 18 SGND SGND 19 VCC Pin to supply power-supply voltage. To curb the influence of ripple and noise. The voltage should be stabilized. www.onsemi.com 6 LB11685AV APPLICATION CIRCUIT EXAMPLE * Each fixed number in the following Figure 3, is the referential value. 0.1 mF 0.1 mF 0.1 mF FAN MOTOR 1 24 2 23 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 11 14 12 13 0.1 mF 10 mF 1 mF 1 mF 0.015 mF VCC 0.1 mF 1 mF 0.1 mF 0.01 mF 0.01 mF Figure 3. Application Circuit Example ORDERING INFORMATION Device Package Wire Bond Shipping† (Qty / Packing) LB11685AV−TLM−H SSOP24J (275mil) (Pb-Free / Halogen Free) Au-wire 2000 / Tape & Reel LB11685AV−W−AH SSOP24J (275mil) (Pb-Free / Halogen Free) Cu-wire 2000 / Tape & Reel †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. www.onsemi.com 7 LB11685AV PACKAGE DIMENSIONS SSOP24J (275mil) CASE 565AS ISSUE A 1.00 SOLDERING FOOTPRINT* 7.00 (Unit: mm) 0.80 0.42 NOTE: The measurements are not to guarantee but for reference only. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. www.onsemi.com 8 LB11685AV ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. 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