Brushless DC Motor Controller

MC33033, NCV33033 Brushless DC Motor Controller The MC33033 is a high performance second generation, limited feature, monolithic brushless dc motor controller which has evolved from ON Semiconductor’s full featured MC33034 and MC33035 controllers. It contains all of the active functions required for the implementation of open loop, three or four phase motor control. The device consists of a rotor position decoder for proper commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, fully accessible error amplifier, pulse width modulator comparator, three open collector top drivers, and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Unlike its predecessors, it does not feature separate drive circuit supply and ground pins, brake input, or fault output signal. Included in the MC33033 are protective features consisting of undervoltage lockout, cycle−by−cycle current limiting with a selectable time delayed latched shutdown mode, and internal thermal shutdown. Typical motor control functions include open loop speed, forward or reverse direction, and run enable. The MC33033 is designed to operate brushless motors with electrical sensor phasings of 60°/300° or 120°/240°, and can also efficiently control brush dc motors. www.DataSheet4U.com http://onsemi.com PDIP−20 P SUFFIX CASE 738 20 1 SO−20L DW SUFFIX CASE 751D 20 1 PIN CONNECTIONS Top Drive Output BT 1 AT 2 Fwd/Rev SA Sensor Inputs SB SC Reference Output Oscillator 3 4 5 6 7 8 20 CT 19 Output Enable 18 60°/120° Select 17 AB 16 BB 15 CB 14 VCC 13 Gnd 12 Current Sense Non Inverting Input 11 Error Amp Out/ PWM Input (Top View) Bottom Drive Outputs Features • • • • • • • • • • • 10 to 30 V Operation Undervoltage Lockout 6.25 V Reference Capable of Supplying Sensor Power Fully Accessible Error Amplifier for Closed Loop Servo Applications High Current Drivers Can Control External 3−Phase MOSFET Bridge Cycle−By−Cycle Current Limiting Internal Thermal Shutdown Selectable 60°/300° or 120°/240° Sensor Phasings Also Efficiently Control Brush DC Motors with External MOSFET H−Bridge NCV Prefix for Automotive and Other Applications Requiring Site and Control Changes Pb−Free Packages are Available Error Amp 9 Non Inverting Input Error Amp 10 Inverting Input ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 25 of this data sheet. DEVICE MARKING INFORMATION See general marking information in the device marking section on page 25 of this data sheet. © Semiconductor Components Industries, LLC, 2007 1 January, 2007 − Rev. 9 Publication Order Number: MC33033/D MC33033, NCV33033 VM N S N S Rotor Position Decoder FWR/REV 60°/120° Motor Enable VCC Reference Regulator Speed Set Faster RT PWM R S Oscillator CT R S Q Q Undervoltage Lockout Output Buffers Error Amp Thermal Shutdown Current Sense This device contains 266 active transistors. Figure 1. Representative Schematic Diagram http://onsemi.com 2 MC33033, NCV33033 MAXIMUM RATINGS Rating Power Supply Voltage Digital Inputs (Pins 3, 4, 5, 6, 18, 19) Oscillator Input Current (Source or Sink) Error Amp Input Voltage Range Error Amp Output Current Current Sense Input Voltage Range Top Drive Voltage (Pins 1, 2, 20) Top Drive Sink Current (Pins 1, 2, 20) Bottom Drive Output Current Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Class 2, JESD22 A114−C Machine Model (MM) Class A, JESD22 A115−A Charged Device Model (CDM), JESD22 C101−C Power Dissipation and Thermal Characteristics P Suffix, Dual−In−Line, Case 738 Maximum Power Dissipation @ TA = 85°C Thermal Resistance, Junction−to−Air DW Suffix, Surface Mount, Case 751D Maximum Power Dissipation @ TA = 85°C Thermal Resistance, Junction−to−Air Operating Junction Temperature Operating Ambient Temperature Range (Note 3) Storage Temperature Range MC33033 NCV33033 (Source or Sink, Pins 15,16, 17) (Pins 9, 10, Note 1) (Source or Sink, Note 2) Symbol VCC − IOSC VIR IOut VSense VCE(top) ISink(top) IDRV − − − Value 30 Vref 30 −0.3 to Vref 10 −0.3 to 5.0 40 50 100 2000 200 2000 Unit V V mA V mA V V mA mA V V V PD RθJA PD RθJA TJ TA Tstg 867 75 619 105 150 −40 to + 85 −40 to +125 −65 to +150 mW °C/W mW °C/W °C °C °C 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. 1. The input common mode voltage or input signal voltage should not be allowed to go negative by more than 0.3 V. 2. The compliance voltage must not exceed the range of − 0.3 to Vref. 3. NCV33033: Tlow = −40°C, Thigh = 125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and change control. http://onsemi.com 3 MC33033, NCV33033 ELECTRICAL CHARACTERISTICS (VCC = 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.) Characteristic REFERENCE SECTION Reference Output Voltage (Iref = 1.0 mA) TA = 25°C (Note 4) Line Regulation (VCC = 10 V to 30 V, Iref = 1.0 mA) Load Regulation (Iref = 1.0 mA to 20 mA) Output Short−Circuit Current (Note 5) Reference Under Voltage Lockout Threshold ERROR AMPLIFIER Input Offset Voltage (Note 4) Input Offset Current (Note 4) Input Bias Current (Note 4) Input Common Mode Voltage Range Open Loop Voltage Gain (VO = 3.0 V, RL = 15 k) Input Common Mode Rejection Ratio Power Supply Rejection Ratio (VCC = 10 V to 30 V) Output Voltage Swing High State (RL = 15 k to Gnd) Low State (RL = 17 k to Vref) VIO IIO IIB VICR AVOL CMRR PSRR VOH VOL 70 55 65 4.6 − − − − 0.4 8.0 −46 (0 V to Vref) 80 86 105 5.3 0.5 − − − − 1.0 10 500 −1000 mV nA nA V dB dB dB V Vref 5.9 5.82 Regline Regload ISC Vth − − 40 4.0 6.24 − 1.5 16 75 4.5 6.5 6.57 30 30 − 5.0 mV mV mA V V Symbol Min Typ Max Unit 4. MC33033: TA = −40°C to + 85°C; NCV33033: TA = −40°C to +125°C. 5. Maximum package power dissipation limits must be observed. http://onsemi.com 4 MC33033, NCV33033 ELECTRICAL CHARACTERISTICS (continued) (VCC = 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.) Characteristic OSCILLATOR SECTION Oscillator Frequency Frequency Change with Voltage (VCC = 10 V to 30 V) Sawtooth Peak Voltage Sawtooth Valley Voltage LOGIC INPUTS Input Threshold Voltage (Pins 3, 4, 5, 6, 18, 19) High State Low State Sensor Inputs (Pins 4, 5, 6) High State Input Current (VIH = 5.0 V) Low State Input Current (VIL = 0 V) Forward/Reverse, 60°/120° Select and Output Enable (Pins 3, 18, 19) High State Input Current (VIH = 5.0 V) Low State Input Current (VIL = 0 V) CURRENT−LIMIT COMPARATOR Threshold Voltage Input Common Mode Voltage Range Input Bias Current OUTPUTS AND POWER SECTIONS Top Drive Output Sink Saturation (ISink = 25 mA) Top Drive Output Off−State Leakage (VCE = 30 V) Top Drive Output Switching Time (CL = 47 pF, RL = 1.0 k) Rise Time Fall Time Bottom Drive Output Voltage High State (VCC = 30 V, Isource = 50 mA) Low State (VCC = 30 V, Isink = 50 mA) Bottom Drive Output Switching Time (CL = 1000 pF) Rise Time Fall Time Under Voltage Lockout Drive Output Enabled (VCC Increasing) Hysteresis Power Supply Current VCE(sat) IDRV(leak) tr tf VOH VOL tr tf Vth(on) VH ICC − − − − (VCC − 2.0) − − − 8.2 0.1 − 0.5 0.06 107 26 (VCC − 1.1) 1.5 38 30 8.9 0.2 15 1.5 100 300 300 V − 2.0 ns 200 200 V 10 0.3 22 mA V μA ns Vth VICR IIB 85 − − 101 3.0 −0.9 115 − −5.0 mV V μA V VIH VIL IIH IIL 3.0 − −150 −600 2.2 1.7 −70 −337 − 0.8 μA −20 −150 μA IIH IIL −75 −300 −36 −175 −10 −75 fOSC ΔfOSC/ΔV VOSC(P) VOSC(V) 22 − − 1.2 25 0.01 4.1 1.5 28 5.0 4.5 − kHz % V V Symbol Min Typ Max Unit http://onsemi.com 5 MC33033, NCV33033 f OSC, OSCILLATOR FREQUENCY (kHz) 100 VCC = 20 V TA = 25°C Δf OSC, OSCILLATOR FREQUENCY CHANGE (%) 4.0 VCC = 20 V RT = 4.7 k CT = 10 nF 2.0 10 0 CT = 100 nF 0 1.0 CT = 10 nF CT = 1.0 nF − 2.0 10 100 1000 − 4.0 − 55 − 25 0 25 50 75 100 125 RT, TIMING RESISTOR (kΩ) TA, AMBIENT TEMPERATURE (°C) Figure 2. Oscillator Frequency versus Timing Resistor Figure 3. Oscillator Frequency Change versus Temperature Vsat , OUTPUT SATURATION VOLTAGE (V) AVOL, OPEN−LOOP VOLTAGE GAIN (dB) 56 48 40 32 24 16 VCC = 20 V VO = 3.0 V 0 RL = 15 k C = 100 pF − 8.0 T L = 25°C A −16 − 24 1.0 k 10 k 8.0 Gain Phase 40 φ, EXCESS PHASE (DEGREES) 60 80 0 Vref Source Saturation (Load to Ground) VCC = 20 V TA = 25°C − 0.8 −1.6 1.6 0.8 0 0 100 120 140 160 180 200 220 100 k f, FREQUENCY (Hz) 1.0 M Gnd 1.0 Sink Saturation (Load to Vref) 5.0 240 10M 2.0 3.0 4.0 IO, OUTPUT LOAD CURRENT (mA) Figure 4. Error Amp Open Loop Gain and Phase versus Frequency Figure 5. Error Amp Output Saturation Voltage versus Load Current VO, OUTPUT VOLTAGE (V) 3.0 VO, OUTPUT VOLTAGE (V) 3.05 AV = +1.0 No Load TA = 25°C 4.5 AV = +1.0 No Load TA = 25°C 3.0 2.95 1.5 1.0 μs/DIV 5.0 μs/DIV Figure 6. Error Amp Small−Signal Transient Response Figure 7. Error Amp Large−Signal Transient Response http://onsemi.com 6 MC33033, NCV33033 Δ Vref, REFERENCE OUTPUT VOLTAGE CHANGE (mV) Vref, REFERENCE OUTPUT VOLTAGE (V) 0 − 4.0 − 8.0 − 12 − 16 − 20 − 24 0 10 20 30 40 50 60 Iref, REFERENCE OUTPUT SOURCE CURRENT (mA) VCC = 20 V TA = 25°C 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0 0 10 20 VCC, SUPPLY VOLTAGE (V) No Load TA = 25°C 30 40 Figure 8. Reference Output Voltage Change versus Output Source Current Figure 9. Reference Output Voltage versus Supply Voltage ΔVref, NORMALIZED REFERENCE VOLTAGE CHANGE (mV) 100 40 20 0 − 20 VCC = 20 V No Load − 40 0 − 55 − 25 0 25 50 75 TA, AMBIENT TEMPERATURE (°C) 100 125 0 1.0 2.0