LB11685AV ONSEMI | Alldatasheet

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© Semiconductor Components Industries, LLC, 2013 January, 2018 − Rev. 1

1 Publication Order Number:

3‐phase Sensor Less Motor Driver Overview The LB11685A V 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 LB11685A V features a current soft switching circuit and be optimal for driving the cooling fan motors used in refrigerators, etc. Functions

  • Three-phase Full-wave Linear Drive (Hall Sensor-less Method)
  • Built-in Current Limiter Circuit
  • Built-in Three-phase Output V oltage 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 Specifications MAXIMUM RATINGS (TA = 25°C) Parameter Symbol Conditions Ratings Unit Maximum Supply Voltage VCC max 19 V Input Applied Voltage VIN max −0.3 to VCC + 0.3 V Maximum Output Current IO max (Note 1) 1.2 A Allowable Power Dissipation Pd max Mounted on a board (Note 2) 1.05 W 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 I O is a peak value of motor-current. CAUTION: Absolute maximum ratings represent the value which cannot be exceeded for any length of time. CAUTION: 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. SSOP24J CASE 565AS See detailed ordering and shipping information on page 7 of this data sheet.

ORDERING INFORMATION

www.onsemi.com XXXXX = Specific Device Code Y = Year M = Month DDD = Additional Traceability Data XXXXXXXXXX YMDDD MARKING DIAGRAM PIN ASSIGNMENT

24 VOUTUOUT 1

23 WOUT(NC) 2

22 (NC)(NC) 3 21 (NC)PGND 4

20 RFMCOM 5

19 V CC(NC) 6

18 REGSGND 7

17 VOHFG 8

16 FC1RD 9

15 FC2(NC) 10

14 C2VCO 11

13 C1CX 12

www.onsemi.com RECOMMENDED OPERATING CONDITIONS (TA = 25°C) Symbol Parameter Conditions Ratings Unit VCC Recommended Supply Voltage 12.0 V VCC op Operating Supply Voltage 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) Symbol Parameter Conditions Min Typ Max Unit ICC Supply Current FC1 = FC2 = 0 V 5 10 20 mA VREG Internal Regulate Voltage 3.0 3.3 3.6 V VOSOUR Output Voltage (Source) IO = 0.8 A (Note 5) 1.3 1.7 V VOSINK Output Voltage (Sink) IO = 0.8 A (Note 5) 0.5 1.3 V VOLIM Current Limiter 0.268 0.300 0.332 V VINCOM MCOM Pin Common-input Voltage Range

0 VCC − 2 V

Source Current for Hysteresis MCOM = 7 V 30 80 /C0109A ICOM− MCOM Pin Sink Current for Hysteresis MCOM = 7 V 30 80 /C0109A RTCOM MCOM Pin Hysteresis Current Ratio RTCOM = ICOM+ / ICOM− 0.6 1.4 IVCO VCO Input Bias Current VCO = 2.3 V 0.2 /C0109A fVCOmin VCO Oscillation Minimum Frequency VCO = 2.1 V, CX = 0.015 /C0109F Design target (Note 4) 930 Hz fVCOmax VCO Oscillation Maximum Frequency VCO = 2.7 V, CX = 0.015 /C0109F Design target (Note 4) 8.6 kHz ICX CX Charge/Discharge Current VCO = 2.5 V, CX = 1.6 V 70 100 140 /C0109A /C0068VCX CX Hysteresis Voltage 0.35 0.55 0.75 IC1(2)+ C1 (C2) Charge Current VCO = 2.5 V, C1(2) = 1.3 V 12 20 28 /C0109A IC1(2)− C1 (C2) Discharge Current VCO = 2.5 V, C1(2) = 1.3 V 12 20 28 /C0109A 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) 150 180 °C /C0068TTSD Thermal Shut Down Hysteresis Temperature (Note 3) Junction temperature Design target (Note 4) 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 T opr. Design thermal calculation at normal operation. 4. Design target value and no measurement is made. 5. The I O is a peak value of motor-current.

Figure 1. Pd max − TA

Figure 2. Block Diagram

www.onsemi.com PIN FUNCTION PIN FUNCTION Pin No. Pin Name Function Equivalent Circuit UOUT WOUT VOUT Each output pin of three phases. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 20 Pin No. 4 Pin No. 1, 23, 24 4 PGND GND pin in the output part. This pin is connected to GND. The SGND pin is also connected to GND 20 RF 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. 5 MCOM Motor coil midpoint input pin. The coil voltage waveform is detected based on this voltage. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 5 SGND VCCVCC SGND SGND SGND SGND

7 SGND Ground pin (except the output part)

This pin is connected to GND. The PGND pin is also connected to GND. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ 8 FG FG out made by back EMF pin. It synchronizes FG out with inverted V-phase. When don’t use this function, open this pin. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 8, 9 SGND SGND9 RD 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. 11 VCO PLL output pin and VCO input pin. To stabilize PLL output, connect a capacitor between this pin and GND. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 11 SGND SGND VREG VREGVREG VCC 500 k/C0087

www.onsemi.com PIN FUNCTION (continued) Pin No. Equivalent CircuitFunctionPin Name 12 CX VCO oscillation output pin. Operation frequency range and minimum frequency are determined by the capacity of the capacitor connected to this pin. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 12 SGND VREG VCC SGND 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. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 13, 14 VCC 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. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 15 VCC SGND SGND VREG 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. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 16 VCC 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 V CC pin. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 17 VCC SGND VCC SGND 18 VREG DC voltage (3.3 V) output pin. Connect a capacitor between this pin and GND for stabilization. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ Pin No. 18 VCC SGND SGND VCC 19 VCC Pin to supply power-supply voltage. To curb the influence of ripple and noise. The voltage should be stabilized. ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁÁÁÁÁÁ

www.onsemi.com APPLICATION CIRCUIT EXAMPLE * Each fixed number in the following Figure 3, is the referential value. Figure 3. Application Circuit Example 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 PACKAGE DIMENSIONS SSOP24J (275mil) CASE 565AS ISSUE A SOLDERING FOOTPRINT* 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. (Unit: mm) 7.00 0.42 1.00 0.80

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