MC33033 Motorola, MC33033 Datasheet
MC33033
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MC33033 Summary of contents
Page 1
... Brushless DC Motor Controller The MC33033 is a high performance second generation, limited feature, monolithic brushless dc motor controller which has evolved from Motorola 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 ...
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... FWR/REV 60 /120 Enable V CC Reference Regulator Speed Set Error Amp Faster PWM R T Oscillator MC33033 Representative Schematic Diagram Rotor Position Decoder Undervoltage Lockout Thermal Shutdown This device contains 266 active transistors. MOTOROLA ANALOG IC DEVICE DATA ...
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... NOTES: 1. The input common mode voltage or input signal voltage should not be allowed to go negative by more than 0 The compliance voltage must not exceed the range of – 0 ref . 3. Maximum package power dissipation limits must be observed. MOTOROLA ANALOG IC DEVICE DATA MC33033 Symbol Value Unit ...
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... High State ( source = 50 mA) Low State ( sink = 50 mA) Bottom Drive Output Switching Time ( 1000 pF) Rise Time Fall Time Under Voltage Lockout Drive Output Enabled (V CC Increasing) Hysteresis Power Supply Current 4 MC33033 Symbol Min Typ f OSC OSC / V – 0.01 V OSC(P) – ...
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... –16 – 100 k f, FREQUENCY (Hz) Figure 5. Error Amp Small–Signal Transient Response 3.05 3.0 2.95 1.0 s/DIV MOTOROLA ANALOG IC DEVICE DATA MC33033 Figure 2. Oscillator Frequency Change 4 4 – 2 1.0 nF – 4.0 1000 – 55 – ...
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... AMBIENT TEMPERATURE ( C) Figure 11. Bottom Drive Response Time versus Current Sense Input Voltage 250 200 150 100 50 0 1.0 2.0 3.0 4.0 5.0 V Sense , CURRENT SENSE INPUT VOLTAGE (NORMALIZED MC33033 Figure 8. Reference Output Voltage versus 7.0 6.0 5.0 4.0 3.0 2.0 1 Figure 10. Output Duty Cycle versus 100 ...
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... 100 0 50 ns/DIV 8.0 6.0 4.0 2 MOTOROLA ANALOG IC DEVICE DATA MC33033 Figure 14. Bottom Drive Output Waveform 100 0 Figure 16. Bottom Drive Output Saturation 0 –1 – 2.0 2.0 1 Figure 17. Supply Current versus Voltage 4 Pins 3–6, 12 Gnd ...
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... /120 Select 19 Output Enable 8 MC33033 PIN FUNCTION DESCRIPTION Description These three open collector Top Drive Outputs are designed to drive the external upper power switch transistors. The Forward/Reverse Input is used to change the direction of motor rotation. These three Sensor Inputs control the commutation sequence. ...
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... Effect switches or opto slotted couplers. Internal pull–up resistors are included to minimize the required number of external components. The inputs are TTL compatible, with their thresholds typically at 2.2 V. The MC33033 series is designed to control three phase motors and operate with four of the most common conventions of sensor phasing. A ...
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... Reference Output 7 Noninv. Input Error Amp 9 10 Faster PWM Error Amp Out PWM Input 8 Oscillator C T Sink Only Positive True = Logic With Hysteresis 10 MC33033 20 k Rotor Position Decoder 40 k Undervoltage Lockout 8.9 V 4.5 V Thermal Shutdown Latch Latch Limit R 100 mV ...
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... Error Amplifier, and can supply current suitable for directly powering sensors in low voltage applications. In higher voltage applications it may become necessary to transfer the power dissipated by the regulator off the IC. This is easily accomplished with the addition of an external pass MOTOROLA ANALOG IC DEVICE DATA MC33033 Outputs (Note 3) Top Drives Current F/R Enable ...
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... Transistor common base stage used to level shift from the high motor voltage The collector diode is required present while low. 12 MC33033 Figure 21. Reference Output Buffers V in MPS U01A Sensor Power 5 MPS ...
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... MC1455 18 k 0.001 This circuit generates V Boost for Figure 23. MOTOROLA ANALOG IC DEVICE DATA MC33033 Figure 25. MOSFET Drive Precautions R S Series gate resistor R g will damp any high frequency oscillations caused by the MOSFET input capacitance and any series wiring induction in the gate–source circuit. Diode D is required if the negative current into the Bottom Drive Outputs exceeds 50 mA ...
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... IC. SYSTEM APPLICATIONS Three Phase Motor Commutation The three phase application shown in Figure open loop motor controller with full wave, six step drive. The upper 14 MC33033 Figure 31. Digital Speed Controller 5 REF ...
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... FWR/REV 18 60 /120 19 Enable Reference Regulator 7 Speed Set Error Amp 9 Faster 10 PWM Oscillator C T MOTOROLA ANALOG IC DEVICE DATA MC33033 2 1 Rotor Position Decoder 20 Undervoltage Lockout 17 16 Thermal Shutdown Limit Gnd ...
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... Transistors + A O – + Motor Drive O B Current – – 16 MC33033 Rotor Electrical Position (Degrees) 180 240 300 360 420 100 111 011 001 000 010 011 001 101 100 ...
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... Error Amp 9 Faster 10 PWM Oscillator C T MOTOROLA ANALOG IC DEVICE DATA MC33033 winding. Current flow is unidirectional or half wave because only one end of each winding is switched. The stator flyback voltage is clamped by a single zener and three diodes Rotor Position Decoder 20 Undervoltage ...
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... Traditionally this has been accomplished by means of a tachometer to generate the motor speed feedback voltage. Figure 37 shows an application whereby an MC33039, powered from the 6.25 V reference (Pin 7) of the MC33033, is used to generate the required feedback voltage without the need of a costly tachometer. The same Hall sensor signals used by the MC33033 for rotor position decoding are utilized by the MC33039 ...
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... Figure 38. From the sensor phasing table (Figure 39), note that the order of input codes for 60 phasing is the reverse of 300 . This means the MC33033, when the 60 /120 select (Pin 18) and the FWD/REV (Pin 3) both in the high state (open), is configured to operate a 60 sensor phasing motor in the forward direction ...
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... MC33033 MOTOROLA ANALOG IC DEVICE DATA ...
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... A O – – Motor Drive + Current C O – – MOTOROLA ANALOG IC DEVICE DATA MC33033 Rotor Electrical Position (Degrees) 90 180 270 360 450 Full Speed (No PWM) FWD/REV = 1 540 630 720 ...
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... MC33033 MOTOROLA ANALOG IC DEVICE DATA ...
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... Brush Motor Control Though the MC33033 was designed to control brushless dc motors, it may also be used to control dc brush–type motors. Figure 44 shows an application of the MC33033 driving a H–bridge affording minimal parts count to operate a brush–type motor. Key to the operation is the input sensor code [100] which produces a top–left ( and a bottom–right ( drive when the controller’ ...
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... TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 12.65 12.95 0.499 0.510 B 7.40 7.60 0.292 0.299 C 2.35 2.65 0.093 0.104 D 0.35 0.49 0.014 0.019 F 0.50 0.90 0.020 0.035 G 1.27 BSC 0.050 BSC J 0.25 0.32 0.010 0.012 K 0.10 0.25 0.004 0.009 10.05 10.55 0.395 0.415 R 0.25 0.75 0.010 0.029 *MC33033/D* MOTOROLA ANALOG IC DEVICE DATA MC33033/D ...