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| Order this document by MC33030/D MC33030 DC Servo Motor Controller/Driver The MC33030 is a monolithic DC servo motor controller providing all active functions necessary for a complete closed loop system. This device consists of an on-chip op amp and window comparator with wide input common-mode range, drive and brake logic with direction memory, Power H-Switch driver capable of 1.0 A, independently programmable over-current monitor and shutdown delay, and over-voltage monitor. This part is ideally suited for almost any servo positioning application that requires sensing of temperature, pressure, light, magnetic flux, or any other means that can be converted to a voltage. Although this device is primarily intended for servo applications, it can be used as a switchmode motor controller. * On-Chip Error Amp for Feedback Monitoring DC SERVO MOTOR CONTROLLER/DRIVER SEMICONDUCTOR TECHNICAL DATA 16 1 * * * * * * Window Detector with Deadband and Self Centering Reference Input Drive/Brake Logic with Direction Memory 1.0 A Power H-Switch Programmable Over-Current Detector Programmable Over-Current Shutdown Delay Over-Voltage Shutdown P SUFFIX PLASTIC PACKAGE CASE 648C (DIP-16) 16 1 Representative Block Diagram Motor VCC Feedback Position 8 7 6 + 9 + - Over- Voltage Monitor Power H-Switch Error Amp VCC 11 10 14 DW SUFFIX PLASTIC PACKAGE CASE 751G (SOP-16L) PIN CONNECTIONS Reference Input Reference Input Filter Error Amp Output Filter/Feedback Input Gnd 5 Error Amp Output Error Amp Inverting Input Error Amp Non- Inverting Input 6 7 8 (Top View) Pins 4, 5, 12 and 13 are electrical ground and heat sink pins for IC. 12 11 VCC 10 9 Driver Output B Error Amp Input Filter 1 2 3 4 Over-Current Delay 15 Over-Current Reference Driver 14 Output A 16 13 Gnd + 3 - Window Detector + VCC Reference Position 1 + - Drive/ Brake Logic Programmable Over- Current Detector & Latch Direction Memory 2 ORDERING INFORMATION 4, 5, 12, 13 CDLY 16 15 ROC Device MC33030DW This device contains 119 active transistors. MC33030P Operating Temperature Range TA = - 40 to +85C Package SOP-16L DIP-16 Rev 2 (c) Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 1 MC33030 MAXIMUM RATINGS Rating Power Supply Voltage Input Voltage Range p g g Op Amp, C OA Comparator, C t Current Li it t Limit (Pi 1, 2 3 6 7 8 9 15) (Pins 1 2, 3, 6, 7, 8, 9, Input Differential Voltage Range Op Amp Comparator (Pins 1 2 3 6 7 8 9) Amp, 1, 2, 3, 6, 7, 8, Delay Pin Sink Current (Pin 16) Output Source Current (Op Amp) Drive Output Voltage Range (Note 1) Drive Output Source Current (Note 2) Drive Output Sink Current (Note 2) Brake Diode Forward Current (Note 2) Power Dissipation and Thermal Characteristics P Suffix, Dual In Line Case 6 8C 648C Su , ua e Thermal Resistance, Junction-to-Air Thermal Resistance Junction-to-Case Resistance, (Pins 4, 5, 12, 13) DW Suffix, Dual In Line Case 751G Thermal Resistance Junction to Air Resistance, Junction-to-Air Thermal Resistance, Junction-to-Case Junction to Case (Pins 4, 5, 12, 13) Operating Junction Temperature Operating Ambient Temperature Range Storage Temperature Range Symbol VCC VIR Value 36 - 0.3 to VCC Unit V V VIDR IDLY(sink) Isource VDRV IDRV(source) IDRV(sink) IF - 0.3 to VCC 20 10 - 0.3 to (VCC + VF) 1.0 1.0 1.0 V mA mA V A A A C/W RJA RJC RJA RJC TJ TA Tstg 80 15 94 18 +150 - 40 to + 85 - 65 to +150 C C C NOTES: 1. The upper voltage level is clamped by the forward drop, VF, of the brake diode. 2. These values are for continuous DC current. Maximum package power dissipation limits must be observed. ELECTRICAL CHARACTERISTICS (VCC = 14 V, TA = 25C, unless otherwise noted.) Characteristic ERROR AMP Symbol Min Typ Max Unit Input Offset Voltage (- 40C VPin 6 = 7 0 V RL = 100 k 7.0 V, p TA p 85C) VIO IIO IIB VICR SR fc m CMRR PSRR IO + IO - VOH VOL - - - - - - - 50 - - - 12.5 - 1.5 0.7 7.0 0 to (VCC - 1.2) 0.40 550 63 82 89 1.8 250 13.1 0.02 10 - - - - - - - - - - - - mV nA nA V V/s kHz deg. dB dB mA A V V Input Offset Current (VPin 6 = 1.0 V, RL = 100 k) Input Bias Current (VPin 6 = 7.0 V, RL = 100 k) Input Common-Mode Voltage Range VIO = 20 mV RL = 100 k mV, Slew Rate, Open Loop (VID = 0.5 V, CL = 15 pF) Unity-Gain Crossover Frequency Unity-Gain Phase Margin Common-Mode Rejection Ratio (VPin 6 = 7.0 V, RL = 100 k) Power Supply Rejection Ratio VCC = 9 0 to 16 V VPin 6 = 7 0 V RL = 100 k 9.0 V, 7.0 V, Output Source Current (VPin 6 = 12 V) Output Sink Current (VPin 6 = 1.0 V) Output Voltage Swing (RL = 17 k to Ground) NOTES: 3. The upper or lower hysteresis will be lost when operating the Input, Pin 3, close to the respective rail. Refer to Figure 4. 4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. 2 MOTOROLA ANALOG IC DEVICE DATA MC33030 ELECTRICAL CHARACTERISTICS (continued) (VCC = 14 V, TA = 25C, unless otherwise noted.) Characteristic WINDOW DETECTOR Input Hysteresis Voltage (V1 - V4, V2 - V3, Figure 18) Input Dead Zone Range (V2 - V4, Figure 18) Input Offset Voltage ( [V2 - VPin 2] - [VPin 2 - V4] Figure 18) Input Functional Common-Mode Range (Note 3) p g( ) Upper Th h ld U Threshold Lower Threshold L Th h ld Reference Input Self Centering Voltage Pins 1 and 2 Open Window Detector Propagation Delay pg y Comparator I C t Input, Pi 3 t D i O t t t Pin 3, to Drive Outputs VID = 0 5 V RL(DRV) = 390 0.5 V, OVER-CURRENT MONITOR Over-Current Reference Resistor Voltage (Pin 15) Delay Pin Source Current VDLY = 0 V, ROC = 27 k IDRV = 0 mA V k, Delay Pin Sink Current (ROC = 27 k, IDRV = 0 mA) y ( ) VDLY = 5.0 V 50 VDLY = 8.3 V 83 VDLY = 14 V Delay Pin Voltage, Low State (IDLY = 0 mA) Over-Current Shutdown Threshold VCC = 14 V VCC = 8.0 V 80 Over-Current Shutdown Propagation Delay Delay Capacitor Input, Pin 16, to Drive Outputs, VID = 0.5 V POWER H-SWITCH ROC IDLY(source) ( ) IDLY(sink) - - - VOL(DLY) Vth(OC) 6.8 68 5.5 55 tp(DLY/DRV) - 7.5 75 6.0 60 1.8 8.2 82 6.5 65 - s - 0.1 01 0.7 07 16.5 16 5 0.3 - - - 0.4 V V 3.9 - 4.3 5.5 4.7 6.9 V A mA VH VIDZ VIO VIH VIL VRSC tp(IN/DRV) 25 166 - - - - - 35 210 25 (VCC - 1.05) 1 05) 0.24 0 24 (1/2 VCC) 2.0 45 254 - - - - - V s mV mV mV V Symbol Min Typ Max Unit Drive-Output Saturation (- 40C p ( TA High-State Hi h St t (Isource = 100 mA) A) Low-State L St t (Isink = 100 mA) A) p p+ 85C, Note 4)) V VOH(DRV) ( ) VOL(DRV) tr tf VF (VCC - 2) - - - - (VCC - 0.85) 0 85) 0.12 0 12 200 200 1.04 - 1.0 10 ns - - 2.5 V Drive-Output Voltage Switching Time (CL = 15 p ) p g g ( pF) Rise Ti Ri Time Fall Ti F ll Time Brake Diode Forward Voltage Drop (IF = 200 mA, Note 4) TOTAL DEVICE Standby Supply Current Over-Voltage Shutdown Threshold (- ( 40C TA + 85C) ICC Vth(OV) () VH(OV) VCC - 16.5 0.3 - 14 18 0.6 7.5 25 20.5 1.0 8.0 mA V V V pp pp Over-Voltage Shutdown Hysteresis (Device "off" to "on") Operating Voltage Lower Threshold (- ( 40C TA + 85C) NOTES: 3. The upper or lower hysteresis will be lost when operating the Input, Pin 3, close to the respective rail. Refer to Figure 4. 4. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible. MOTOROLA ANALOG IC DEVICE DATA 3 MC33030 Figure 1. Error Amp Input Common-Mode Voltage Range versus Temperature VICR , INPUT COMMON-MODE RANGE (mV) Vsat , OUTPUT SATURATION VOLTAGE (V) 0 VIO = 20 mV RL = 100 k 0 VCC Source Saturation RL to Gnd TA = 25C VCC Figure 2. Error Amp Output Saturation versus Load Current - 400 - 800 800 400 0 - 55 Gnd - 25 25 0 50 75 TA, AMBIENT TEMPERATURE (C) 100 125 - 1.0 - 2.0 2.0 1.0 Sink Saturation RL to VCC TA = 25C Gnd 0 30 100 300 1.0 k IL, LOAD CURRENT ( A) 3.0 k Figure 3. Open Loop Voltage Gain and Phase versus Frequency VICR , INPUT COMMON-MODE RANGE (V) AVOL, OPEN-LOOP VOLTAGE GAIN (dB) 80 0 , EXCESS PHASE (DEGREES) 0 - 0.5 - 1.0 - 1.5 Figure 4. Window Detector Reference-Input Common-Mode Voltage Range versus Temperature Max. Pin 2 VICR so that Pin 3 can change state of drive outputs. VCC 60 Gain Phase 40 VCC = 14 20 Vout = 7.0 V RL = 100 k CL = 40 pF T = 25C 0A 1.0 10 Phase Margin = 63 45 90 0.3 0.2 0.1 0 - 55 - 25 Gnd 0 25 50 75 TA, AMBIENT TEMPERATURE (C) 100 125 135 100 1.0 k 10 k f, FREQUENCY (Hz) 100 k 180 1.0 M Figure 5. Window Detector Feedback-Input Thresholds versus Temperature Vsat, OUTPUT SATURATION VOLTAGE (V) 7.15 VFB , FEEDBACK-INPUT VOLTAGE (V) V2 7.10 7.05 7.00 6.95 6.90 6.85 - 55 - 25 Lower Hysteresis V1 V4 100 125 Upper Hysteresis V3 VCC = 14 V Pin 2 = 7.00 V 0 Figure 6. Output Driver Saturation versus Load Current VCC - 1.0 Source Saturation RL to Gnd TA = 25C 1.0 Sink Saturation RL = VCC TA = 25C 200 Gnd 400 600 IL, LOAD CURRENT ( mA) 800 0 25 50 75 TA, AMBIENT TEMPERATURE (C) 0 0 4 MOTOROLA ANALOG IC DEVICE DATA MC33030 Figure 7. Brake Diode Forward Current versus Forward Voltage Isource , OUTPUT SOURCE CURRENT (mA) 500 IF , FORWARD CURRENT (mA) TA = 25C 400 300 200 100 0 0.5 800 VCC = 14 V TA = 25C 600 Figure 8. Output Source Current-Limit versus Over-Current Reference Resistance 400 200 0.7 0.9 1.1 1.3 1.5 0 0 20 40 60 80 100 VF, FORWARD VOLTAGE (V) ROC, OVER-CURRENT REFERENCE RESISTANCE (k) Figure 9. Output Source Current-Limit versus Temperature I source, OUTPUT SOURCE CURRENT (mA) 600 ROC = 15 k 400 ROC = 27 k VCC = 14 V IDLY(source) , DELAY PIN SOURCE CURRENT (NORMALIZED) 1.04 Figure 10. Normalized Delay Pin Source Current versus Temperature 1.00 0.96 200 ROC = 68 k 0.92 VCC = 14 V 0 - 55 - 25 25 0 50 75 TA, AMBIENT TEMPERATURE (C) 100 125 0.88 - 55 - 25 25 50 75 0 TA, AMBIENT TEMPERATURE (C) 100 125 Vth(OC), OVER-CURRENT DELAY THRESHOLD VOLTAGE (NORMALIZED) Figure 11. Normalized Over-Current Delay Threshold Voltage versus Temperature 28 CC, SUPPLY CURRENT (mA) 24 20 16 12 8.0 4.0 0 - 25 0 25 50 75 100 125 0 Figure 12. Supply Current versus Supply Voltage Pins 6 to 7 Pins 2 to 8 TA = 25C 1.04 1.02 1.00 0.98 VCC = 14 V 0.96 - 55 Minimum Operating Voltage Range 8.0 16 Over- Voltage Shutdown Range 24 32 40 TA, AMBIENT TEMPERATURE (C) I VCC, SUPPLY VOLTAGE (V) MOTOROLA ANALOG IC DEVICE DATA 5 MC33030 V th(OV) , OVER-VOLTAGE SHUTDOWN THRESHOLD (NORMALIZED) V th(OV) , OVER-VOLTAGE SHUTDOWN THRESHOLD (NORMALIZED) Figure 13. Normalized Over-Voltage Shutdown Threshold versus Temperature 1.02 Figure 14. Normalized Over-Voltage Shutdown Hysteresis versus Temperature 1.4 1.2 1.0 0.8 0.6 0.4 - 55 1.00 0.98 0.96 - 55 - 25 0 25 50 75 TA, AMBIENT TEMPERATURE (C) 100 125 - 25 0 25 50 75 100 TA, AMBIENT TEMPERATURE (C) 125 Figure 15. P Suffix (DIP-16) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length Printed circuit board heatsink example JUNCTION-TO-AIR ( C/W) 80 60 40 20 PD(max) for TA = 70C RJA L 2.0 oz Copper 4.0 3.0 2.0 1.0 0 50 L 3.0 mm Graphs represent symmetrical layout 0 0 10 20 30 L, LENGTH OF COPPER (mm) 40 Figure 16. DW Suffix (SOP-16L) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length PD(max) for TA = 50C PD, MAXIMUM POWER DISSIPATION (W) 100 R JA, THERMAL RESISTANCE 90 80 70 60 50 40 30 0 10 20 30 40 L, LENGTH OF COPPER (mm) RJA 2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 50 JUNCTION-TO-AIR ( C/W) Graph represents symmetrical layout L 2.0 oz. Copper L 3.0 mm 6 MOTOROLA ANALOG IC DEVICE DATA P D , MAXIMUM POWER DISSIPATION (W) 100 R JA, THERMAL RESISTANCE 5.0 III I IIIII III III III III I IIIIIII I III MC33030 OPERATING DESCRIPTION The MC33030 was designed to drive fractional horsepower DC motors and sense actuator position by voltage feedback. A typical servo application and representative internal block diagram are shown in Figure 17. The system operates by setting a voltage on the reference input of the Window Dectector (Pin 1) which appears on (Pin 2). A DC motor then drives a position sensor, usually a potentiometer driven by a gear box, in a corrective fashion so that a voltage proportional to position is present at Pin 3. The servo motor will continue to run until the voltage at Pin 3 falls within the dead zone, which is centered about the reference voltage. The Window Detector is composed of two comparators, A and B, each containing hysteresis. The reference input, common to both comparators, is pre-biased at 1/2 VCC for simple two position servo systems and can easily be overriden by an external voltage divider. The feedback voltage present at Pin 3 is connected to the center of two resistors that are driven by an equal magnitude current source and sink. This generates an offset voltage at the input of each comparator which is centered about Pin 3 that can float virtually from VCC to ground. The sum of the upper and lower offset voltages is defined as the window detector input dead zone range. To increase system flexibility, an on-chip Error Amp is provided. It can be used to buffer and/or gain-up the actuator position voltage which has the effect of narrowing the dead zone range. A PNP differential input stage is provided so that the input common-mode voltage range will include ground. The main design goal of the error amp output stage was to be able to drive the window detector input. It typically can source 1.8 mA and sink 250 A. Special design considerations must be made if it is to be used for other applications. The Power H-Switch provides a direct means for motor drive and braking with a maximum source, sink, and brake current of 1.0 A continuous. Maximum package power dissipation limits must be observed. Refer to Figure 15 for thermal information. For greater drive current requirements, a method for buffering that maintains all the system features is shown in Figure 30. The Over-Current Monitor is designed to distinguish between motor start-up or locked rotor conditions that can occur when the actuator has reached its travel limit. A fraction of the Power H-Switch source current is internally fed into one of the two inverting inputs of the current comparator, while the non-inverting input is driven by a programmable current reference. This reference level is controlled by the resistance value selected for ROC, and must be greater than the required motor run-current with its mechanical load over temperature; refer to Figure 8. During an over-current condition, the comparator will turn off and allow the current source to charge the delay capacitor, CDLY. When CDLY charges to a level of 7.5 V, the set input of the over-current latch will go high, disabling the drive and brake functions of the Power H-Switch. The programmable time delay is determined by the capacitance value-selected for CDLY. t DLY DLY + I Vref CDLY + 7.5 CA + 1.36 CDLY 5.5 DLY(source) in F rotor is locked, the system will time-out and shut-down. This feature eliminates the need for servo end-of-travel or limit switches. Care must be taken so as not to select too large of a capacitance value for CDLY. An over-current condition for an excessively long time-out period can cause the integrated circuit to overheat and eventually fail. Again, the maximum package power dissipation limits must be observed. The over-current latch is reset upon power-up or by readjusting VPin 2 as to cause VPin 3 to enter or pass through the dead zone. This can be achieved by requesting the motor to reverse direction. An Over-Voltage Monitor circuit provides protection for the integrated circuit and motor by disabling the Power H-Switch functions if VCC should exceed 18 V. Resumption of normal operation will commence when VCC falls below 17.4 V. A timing diagram that depicts the operation of the Drive/Brake Logic section is shown in Figure 18. The waveforms grouped in [1] show a reference voltage that was preset, appearing on Pin 2, which corresponds to the desired actuator position. The true actuator position is represented by the voltage on Pin 3. The points V1 through V4 represent the input voltage thresholds of comparators A and B that cause a change in their respective output state. They are defined as follows: V1 = Comparator B turn-off threshold V2 = Comparator A turn-on threshold V3 = Comparator A turn-off threshold V4 = Comparator B turn-on threshold V1-V4 = Comparator B input hysteresis voltage V2-V3 = Comparator A input hysteresis voltage V2-V4 = Window detector input dead zone range |(V2-VPin2) - (VPin2 - V4)| = Window detector input voltage It must be remembered that points V1 through V4 always try to follow and center about the reference voltage setting if it is within the input common-mode voltage range of Pin 3; Figures 4 and 5. Initially consider that the feedback input voltage level is somewhere on the dashed line between V2 and V4 in [1]. This is within the dead zone range as defined above and the motor will be off. Now if the reference voltage is raised so that VPin 3 is less than V4, comparator B will turn-on [3] enabling Q Drive, causing Drive Output A to sink and B to source motor current [8]. The actuator will move in Direction B until VPin 3 becomes greater than V1. Comparator B will turn-off, activating the brake enable [4] and Q Brake [6] causing Drive Output A to go high and B to go into a high impedance state. The inertia of the mechanical system will drive the motor as a generator creating a positive voltage on Pin 10 with respect to Pin 14. The servo system can be stopped quickly, so as not to over-shoot through the dead zone range, by braking. This is accomplished by shorting the motor/generator terminals together. Brake current will flow into the diode at Drive Output B, through the internal VCC rail, and out the emitter of the sourcing transistor at Drive Output A. The end of the solid line and beginning of the dashed for VPin 3 [1] indicates the possible resting position of the actuator after braking. This system allows the Power H-Switch to supply motor start-up current for a predetermined amount of time. If the MOTOROLA ANALOG IC DEVICE DATA 7 MC33030 Figure 17. Representative Block Diagram and Typical Servo Application VCC Gearbox and Linkage Input Filter Drive Output B 11 Over-Voltage Monitor 18 V Ref. 0.3 mA + 20 k 35 A 3.0 k 3.0 k 35 A + Reference Input 1 100 k 100 k 2 Reference Input Filter 20 k Over- Current Latch Q R 5.5 A Q S + Window Detector 4, 5,12,13 Gnd 7.5 V Ref. Over-Current Delay 16 CDLY 15 Over-Current ROC Reference Over-Current Monitor 50 k A Q Drive B R Error Amp Output Filter/ Feedback Input 3 Direction Latch Q S Q Drive Brake Enable Q Q Brake Power H-Switch Q Brake Drive Brake Logic 10 Motor Drive Output A 14 + VCC Non- Inverting Input 9 8 20 k Error Amp Inverting Input Output 7 20 k 6 VCC If VPin 3 should continue to rise and become greater than V2, the actuator will have over shot the dead zone range and cause the motor to run in Direction A until VPin 3 is equal to V3. The Drive/Brake behavior for Direction A is identical to that of B. Overshooting the dead zone range in both directions can cause the servo system to continuously hunt or oscillate. Notice that the last motor run-direction is stored in the direction latch. This information is needed to determine whether Q or Q Brake is to be enabled when VPin 3 enters the dead zone range. The dashed lines in [8,9] indicate the resulting waveforms of an over-current condition that has exceeded the programmed time delay. Notice that both Drive Outputs go into a high impedance state until VPin 2 is readjusted so that VPin 3 enters or crosses through the dead zone [7, 4]. The inputs of the Error Amp and Window Detector can be susceptible to the noise created by the brushes of the DC motor and cause the servo to hunt. Therefore, each of these inputs are provided with an internal series resistor and are pinned out for an external bypass capacitor. It has been found that placing a capacitor with short leads directly across the brushes will significantly reduce noise problems. Good quality RF bypass capacitors in the range of 0.001 to 0.1 F may be required. Many of the more economical motors will generate significant levels of RF energy over a spectrum that extends from DC to beyond 200 MHz. The capacitance value and method of noise filtering must be determined on a system by system basis. 8 Thus far, the operating description has been limited to servo systems in which the motor mechanically drives a potentiometer for position sensing. Figures 19, 20, 27, and 31 show examples that use light, magnetic flux, temperature, and pressure as a means to drive the feedback element. Figures 21, 22 and 23 are examples of two position, open loop servo systems. In these systems, the motor runs the actuator to each end of its travel limit where the Over-Current Monitor detects a locked rotor condition and shuts down the drive. Figures 32 and 33 show two possible methods of using the MC33030 as a switching motor controller. In each example a fixed reference voltage is applied to Pin 2. This causes Vpin 3 to be less than V4 and Drive Output A, Pin 14, to be in a low state saturating the TIP42 transistor. In Figure 32, the motor drives a tachometer that generates an ac voltage proportional to RPM. This voltage is rectified, filtered, divided down by the speed set potentiometer, and applied to Pin. 8. The motor will accelerate until VPin 3 is equal to V1 at which time Pin 14 will go to a high state and terminate the motor drive. The motor will now coast until VPin 3 is less than V4 where upon drive is then reapplied. The system operation of Figure 31 is identical to that of 32 except the signal at Pin 3 is an amplified average of the motors drive and back EMF voltages. Both systems exhibit excellent control of RPM with variations of VCC; however, Figure 32 has somewhat better torque characteristics at low RPM. MOTOROLA ANALOG IC DEVICE DATA MC33030 Figure 18. Timing Diagram Comparator A Non Inverting Input Threshold Reference Input Voltage (Desired Actuator Position) Comparator B Inverting Input Threshold Feedback Input (True Actuator Position) Comparator A Output Comparator B Output V2 V3 [1] V1 V4 Window Detector [2] [3] Brake Enable [4] Direction Latch Q Output Direction Latch Q Output Drive/Brake Logic Q Brake [5] [6] Q Brake [7] Over-Current Latch Reset Input Source Drive Output A Power H-Switch Drive Output B High Z Sink [8] Source High Z Sink 7.5 V CDLY Direction B Feedback Input less than V1 Dead Zone Feedback Input between V1 & V2 Direction A Feedback Input greater than V2 Dead Zone Feedback Input between V3 & V4 Over-Current Monitor [9] Direction B Feedback Input less than V4 MOTOROLA ANALOG IC DEVICE DATA 9 MC33030 Figure 19. Solar Tracking Servo System R1, R2 - Cadium Sulphide Photocell R1, R2 - 5M Dark, 3.0 k light resistance R3 - 30 k, repositions servo during R3 - darkness for next sunrise. 9 R2 R3 Servo Driven Wheel VCC Centering Adjust 1 10 k Typical sensitivity with gain set at 3.9 k is 1.5 mV/gauss. Servo motor controls magnetic field about sensor. Figure 20. Magnetic Sensing Servo System Zero Flux Centering 20 k VCC Linear Hall Effect Sensor B Gain 3.9 k 10 k 6 8 20 k 7 20 k 9 Error Amp VCC VCC 15 Offset R1 8 20 k 7 20 k 6 Error Amp + - TL173C Figure 21. Infrared Latched Two Position Servo System VCC 470 Figure 22. Digital Two Position Servo System VCC Input 9 39 k 8 7 20 k 20 k Error Amp 1 - Activates Drive A 0 - Activates Drive B 1 0 MPS A20 8 7 6 20 k 20 k 9 Error Amp MRD3056 Latch Drive A MRD3056 Latch Drive B 470 68 k VCC/2 1 Over-current monitor (not shown) shuts down servo when end stop is reached. Over-current monitor (not shown) shuts down servo when end stop is reached. Figure 23. 0.25 Hz Square-Wave Servo Agitator VCC Figure 24. Second Order Low-Pass Active Filter 9 Vin Error Amp 1 R 2 C 1C 2 2p C1 Q R C1 R C2 8 20 k 7 6 20 k Error Amp 9 100 k 8 20 k 7 100 k 100 k 130 k 22 +R C 6 20 k fo f + [ 0.72 RC R q 20 k R = 1.0 M C1 = 1000 pF C2 = 100 pF + C2 2 10 MOTOROLA ANALOG IC DEVICE DATA MC33030 Figure 25. Notch Filter 9 Vin R 2C R/2 C f R 8 7 20 k 6 C VB R3 R4 6 R3 R1 20 k + - Error Amp VA R1 R2 8 20 k 7 20 k Figure 26. Differential Input Amplifier 9 + - Error Amp 1 + 2pRC notch For 60 Hz R = 53.6 k, C = 0.05 V Pin 6 + VA ) R4 ) R2 R2 R3 - R4 R3 V B Figure 27. Temperature Sensing Servo System VCC Cabin Temperature T Sensor R1 8 7 20 k R2 R3 R4 VCC Set Temperature 1 6 VA 20 k 9 + - Error Amp R R + R VRef Figure 28. Bridge Amplifier 9 R VB R1 R2 8 7 20 k R4 6 20 k + - Error Amp R R3 V Pin 6 + V R4 CC R 3 R1 R2 )1 )1 DR * VB + VRef 4R ) 2DR R 1 + R 3, R 2 + R 4, R 1 uu R + R4 (VA-VB) V Pin 6 R V A 3 In this application the servo motor drives the heat/air conditioner modulator door in a duct system. Figure 29. Remote Latched Shutdown Figure 30. Power H-Switch Buffer Q Q R S 7.5 V + R O.C. E [ VF(D ) 1 ) VF(D2)-VBE(ON) RE D1 D2 VCC IMOTOR-IDRV(max) + Motor VCC 8 2 3 A From Drive Outputs B 470 RE D1 D2 16 CDLY 4.7 k 15 ROC 17 4 Vin VRef LM311 A direction change signal is required at Pins 2 or 3 to reset the over-current latch. This circuit maintains the brake and over-current features of the MC33030. Set ROC to 15 k for IDRV(max) 0.5 A. MOTOROLA ANALOG IC DEVICE DATA 11 MC33030 Figure 31. Adjustable Pressure Differential Regulator VCC = 12 V 6.2 k Zero Pressure 2.0 k Offset Adjust 5.1 k 12 k LM324 Quad Op Amp 1.0 k 5.1 k 200 200 20 k Gain S- MPX11DP Silicon Pressure Sensor 8.06 k 1.76 k Pressure Port Gas Flow 4.12 k 2.4 k S+ 1.0 k Vacuum Port 1.0 k 2.0 V for Zero Pressure Differential VCC = 12 V 6.0 V for 100 kPa (14.5 PSI) Pressure Differential 8 7 6 + B RQ 3 A 12 V + Pressure Differential Reference Set 5.1 k 5.0 k 1.8 k 0.01 2 1 + QR O.C. Q S + DIR. SQ 0.01 Motor 9 11 10 14 + 4, 5,12,13 16 0.01 15 15 k 12 MOTOROLA ANALOG IC DEVICE DATA MC33030 Figure 32. Switching Motor Controller With Buffered Output and Tach Feedback VCC = 12 V + 100 100 0.002 TACH 1N4001 Speed Set + 10 k 1.0 9 8 7 MZ2361 6 + 11 10 14 + 100 0.24 TIP42 10 + 1.0 k MPS A70 Motor RQ 3 DIR. SQ + 12 V Over Current Reset 1 4.7 k 2 1N753 4, 5,12,13 16 1.0 k 15 + QR O.C. QS + 30 k MOTOROLA ANALOG IC DEVICE DATA 13 MC33030 Figure 33. Switching Motor Controller With Buffered Output and Back EMF Sensing VCC = 12 V 100 + Speed Set 10 k 10 k 1.0 + 10 k 9 2X-1N4001 8 7 20 k 6 + 1.0 11 10 14 + + 100 100 TIP42 0.24 10 + 1.0 k MPS A70 Motor 3 RQ DIR. SQ + Over Current Reset + 12 V 1 + QR O.C. QS 2 1N753 + 4, 5, 12, 13 16 1.0 k 15 30 k 14 MOTOROLA ANALOG IC DEVICE DATA MC33030 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648C-03 (DIP-16) -A- 16 9 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. INTERNAL LEAD CONNECTION, BETWEEN 4 AND 5, 12 AND 13. DIM A B C D E F G J K L M N INCHES MIN MAX 0.740 0.840 0.240 0.260 0.145 0.185 0.015 0.021 0.050 BSC 0.040 0.070 0.100 BSC 0.008 0.015 0.115 0.135 0.300 BSC 0 10 0.015 0.040 MILLIMETERS MIN MAX 18.80 21.34 6.10 6.60 3.69 4.69 0.38 0.53 1.27 BSC 1.02 1.78 2.54 BSC 0.20 0.38 2.92 3.43 7.62 BSC 0 10 0.39 1.01 -B- 1 8 L NOTE 5 C -T- SEATING PLANE N F E G D 16 PL 0.13 (0.005) M M K J 16 PL 0.13 (0.005) M TB S T A S -A- 16 9 DW SUFFIX PLASTIC PACKAGE CASE 751G-02 (SOP-16L) NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. DIM A B C D F G J K M P R MILLIMETERS MIN MAX 10.15 10.45 7.60 7.40 2.65 2.35 0.49 0.35 0.90 0.50 1.27 BSC 0.32 0.25 0.25 0.10 7 0 10.05 10.55 0.25 0.75 INCHES MIN MAX 0.400 0.411 0.292 0.299 0.093 0.104 0.014 0.019 0.020 0.035 0.050 BSC 0.010 0.012 0.004 0.009 0 7 0.395 0.415 0.010 0.029 -B- P 8 PL 0.25 (0.010) 1 8 M B M G 14 PL J F R X 45 C -T- D 16 PL 0.25 (0.010) K M SEATING PLANE M S T A S B MOTOROLA ANALOG IC DEVICE DATA 15 MC33030 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1-800-441-2447 or 602-303-5454 MFAX: RMFAX0@email.sps.mot.com - TOUCHTONE 602-244-6609 INTERNET: http://Design-NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi-SPD-JLDC, 6F Seibu-Butsuryu-Center, 3-14-2 Tatsumi Koto-Ku, Tokyo 135, Japan. 03-81-3521-8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 16 *MC33030/D* MOTOROLA ANALOG IC DEVICE DATA MC33030/D |
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