IL33035 INTEGRAL | Alldatasheet

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Technical content

BRUSHLESS DC MOTOR CONTROLLER The IL33035 is a high performance second generation monolithic brushless DC motor controller containing all of the active functions required to implement a full featured open loop, three or four phase motor control system. This device consists of a rotor position decoder for proper commutation sequencing, temperature compensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, three open collector top drivers, and three high current totem pole bottom drivers ideally suited for driving power MOSFETs. Also included are protective features consisting of undervoltage lockout, cycle-by-cycle current limiting with a selectable time delayed latched shutdown mode, internal thermal shutdown, and a unique fault output that can be interfaced into microprocessor controlled systems. Typical motor control functions include open loop speed, forward or reverse direction, run enable, and dynamic braking. The MC33035 is designed to operate with electrical sensor phasings of 60°/300° or 120°/240°, and can also efficiently control brush DC motors

FEATURES

  • 10 to 30 V Operation
  • Undervoltage Lockout
  • 6.25V 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
  • Pinned-Out Current Sense Reference
  • Internal Thermal Shutdown
  • Selectable 60°/300° or 120°/240° Sensor Phasings
  • Can Efficiently Control Brush DC Motors with External MOSFET H-Bridge

V Digital Inputs (Pins 3, 4, 5, 6, 22, 23) Vref V Oscillator Input Current (Source or Sink) Iosc mA Error Amp Input Voltage Range (Pins 11, 12, Note 1) VIR -0.3 to Vref V Error Amp Output Current (Source or Sink, Note 2) IOut mA Current Sense Input Voltage Range (Pins 9, 15) VSense -0.3 to 5.0 V Fault Output Voltage VCE(Fault) V Fault Output Sink Current ISink(Fault) mA Top Drive Voltage (Pins 1, 2, 24) VCE(top) V Top Drive Sink Current (Pins 1, 2, 24) ISink(top) mA Bottom Drive Supply Voltage (Pin 18) VC V Bottom Drive Output Current (Source or Sink, Pins 19, 20. 21) IDRV 100 mA Power Dissipation and Thermal Characteristics DIP package Maximum Power Dissipation TA = 85oC Thermal Resistance. Junction-to-Air Thermal Resistance, Junction-to-Air PD RθJA PD RθJA 860 650 100 mW oC/W mW oC/W Operating Junction Temperature TJ 150 oC Operating Ambient Temperature Range TA -4010+65 oC Storage Temperature Range Tstg -6510+150 oC

ELECTRICAL CHARACTERISTICS

(Vcc = Vc = 20 V, Rτ-= 4.7 k, Cτ = 10 nF, TA= 25°C, unless ofriarwise noted.) Characteristic Symbol Min Typ Max Unit Reference Output Voltage (Iref = 1.0 mA) TA = 25oC TA=-40oto+85oC Vref 5.9 5.82 6.24 6.5 6.57 V Line Regulation (Vcc = 10 to 30 V, Iref = 1.0 mA) Regline 1.5 mV Load Regulation (Iref = 1.0 to 20 mA) Regload mV Output Short Circuit Current (Note 3) ISC mA Reference Under Voltage Lockout Threshold Vth 4.0 4.5 5.0 V Input Offset Voltage (TA =-40o to+ 85oC) VIO 0.4 mV Input Offset Current (TA=-40°to +85°C) IIO 8.9 500 nA Input Bias Current (TA=-40°to +85°C) IIB -46 -1000 nA Input Common Mode Voltage Range VICR (OVtoV^) V Open Loop Voltage Gain (VO = 3.0 V, RL = 15 k) AVOL dB Input Common Mode Rejection Ratio CMRR dB Power Supply Rejection Ratio (Vcc =Vc = 10 to 30 V) PSRR 105 dB

(Vcc = Vc = 20 V, Rτ-= 4.7 k, Cτ = 10 nF, TA= 25°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Output Voltage Swing High State (RL = 15k to Gnd) Low State (RL=15k to Vref) VOH, VOL 4.6 5.3 0.5 1.0 V Oscillator Frequency fosc kHz Frequency Change with Voltage (Vcc = 10 to 30 V) ∆fosc/∆V 0.01 5.0 Sawtooth Peak Voltage VOSC(P) 4.1 4.5 V Sawtooth Valley Voltage VOSC(V) 1.2 1.5 V Input Threshold Voltage (Pins 3, 4, 5, 6, 7, 22, 23) High Stale Low State VIH VIL 3.0 2.2 1.7 0.8 V Sensor Inputs (Pins 4, 5, 6) High State Input Current (VIH = 5.0 V) Low State Input Current (VIL = 0 V) IIL IIL -150 -600 -70 -337 -20 -150 nA Forward/Reverse, 60°/120° Select (Pins 3, 22, 23) High State Input Current (VIH = 5.0 V) Low State Input Current (VIL = 0 V) IIL IIL -75 -300 -36 -175 -10 -75 nA Output Enable High State Input Current (VIH = 5.0 V) IIH -60 -29 -10 µA Low btate Input Current (VIL =0 V) IIL -60 -29 -10 Threshold Voltage Vth 101 115 mV Input Common Mode Voltage Range VICR 3.0 V Input Bias Current IIB -0.9 -5.0 nA Top Drive Output Sink Saturation (ISink = 25 mA) VCE(SAT) 0.5 1.5 V Top Drive Output Off-State Leakage (VCE = 30 V) IDRV(leak) 0.06 100 nA Top Drive Output Switching Time (CL = 47 pF, RL. = 1.0 Rise Time Fall Time tr tf 107 300 300 ns Bottom Drive Output Voltage V High State (Vcc=20V, Vc = 30 V, Isource= 50 mA) Low State (Vcc = 20 V, Vc = 30 V, Isink =50 mA) VOH VOL (Vcc-2.0) (Vcc-1.1) 1.5 2.0 Bottom Drive Output Switching Time (CL= 1000 pF) Rise Time Fall Time tr, tf 200 200 ns Fault Output Sink Saturation (Isink = 16 mA) VCE(sat) 225 500 mV Fault Output Off-State Leakage (VCE = 20 V) IFLT(leak) 1.0 100 nA Under Voltage Lockout Drive Output Enabled (Vcc or Vc Increasing) Hysteresis Vth(on) VH 8.2 0.1 8.9 0.2 10 0.3 V Power Supply Current Pin 17 (Vcc = Vc= 20 V) Pin 17 (Vcc = 20V, Vc = 30V) Pin 18 (Vcc = Vc= 20V) Pin 18 (Vcc = 20 V, Vc =30V) ICC IC 3.5 5.0 6.0 mA