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 overcurrent monitor and shutdown delay, and overvoltage 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. http://onsemi.com MARKING DIAGRAMS PDIP−16 P SUFFIX CASE 648C 1 Features • • • • • • • • 16 MC33030P AWLYYWWG 1 16 On−Chip Error Amp for Feedback Monitoring Window Detector with Deadband and Self Centering Reference Input Drive/Brake Logic with Direction Memory 1.0 A Power H−Switch Programmable Overcurrent Detector Programmable Overcurrent Shutdown Delay Overvoltage Shutdown Pb−Free Packages are Available* 1 SO−16W DW SUFFIX CASE 751G MC33030DW AWLYYWWG 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package PIN CONNECTIONS Reference Input Reference Input Filter Error Amp Output Filter/Feedback Input Overcurrent Delay 15 Overcurrent Reference Driver 14 Output A 1 16 2 3 4 13 5 12 6 11 VCC 7 10 8 9 GND GND Error Amp Output Error Amp Inverting Input Error Amp Non− Inverting Input Driver Output B Error Amp Input Filter (Top View) Pins 4, 5, 12 and 13 are electrical ground and heat sink pins for IC. ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. © Semiconductor Components Industries, LLC, 2006 June, 2006 − Rev. 6 1 Publication Order Number: MC33030/D MC33030 Motor VCC VCC 11 9 Feedback Position 8 + 7 Error Amp − 6 Over− Voltage Monitor + + Window Detector + Power H−Switch Drive/ Brake Logic − 3 VCC 14 10 Programmable Over− Current Detector & Latch + − Direction Memory Reference Position 1 2 4, 5, 12, 13 16 CDLY 15 ROC This device contains 119 active transistors. Representative Block Diagram ORDERING INFORMATION Package Shipping † MC33030DW SOIC−16 47 Units / Rail MC33030DWG SOIC−16 (Pb−Free) MC33030DWR2 SOIC−16 MC33030DWR2G SOIC−16 (Pb−Free) MC33030P PDIP−16 MC33030PG PDIP−16 (Pb−Free) Device 1000 / Tape & Reel 25 Units / Rail †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. http://onsemi.com 2 MC33030 MAXIMUM RATINGS Rating Symbol Value Unit Power Supply Voltage VCC 36 V Input Voltage Range Op Amp, Comparator, Current Limit (Pins 1, 2, 3, 6, 7, 8, 9, 15) VIR −0.3 to VCC V VIDR −0.3 to VCC V Input Differential Voltage Range Op Amp, Comparator (Pins 1, 2, 3, 6, 7, 8, 9) Delay Pin Sink Current (Pin 16) IDLY(sink) 20 mA Output Source Current (Op Amp) Isource 10 mA Drive Output Voltage Range (Note 1) VDRV −0.3 to (VCC + VF) V Drive Output Source Current (Note 2) IDRV(source) 1.0 A IDRV(sink) 1.0 A IF 1.0 A Drive Output Sink Current (Note 2) Brake Diode Forward Current (Note 2) °C/W Power Dissipation and Thermal Characteristics P Suffix, Dual In Line Case 648C Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13) DW Suffix, Dual In Line Case 751G Thermal Resistance, Junction−to−Air Thermal Resistance, Junction−to−Case (Pins 4, 5, 12, 13) RqJA RqJC 80 15 RqJA RqJC 94 18 TJ +150 °C Operating Junction Temperature Operating Ambient Temperature Range TA −40 to + 85 °C Storage Temperature Range Tstg −65 to +150 °C Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM) ESD V 2000 200 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 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 = 25°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Input Offset Voltage (− 40°C p TA p 85°C), VPin 6 = 7.0 V, RL = 100 k VIO − 1.5 10 mV Input Offset Current (VPin 6 = 1.0 V, RL = 100 k) IIO − 0.7 − nA Input Bias Current (VPin 6 = 7.0 V, RL = 100 k) IIB − 7.0 − nA VICR − 0 to (VCC − 1.2) − V SR − 0.40 − V/ms fc − 550 − kHz ERROR AMP Input Common−Mode Voltage Range DVIO = 20 mV, RL = 100 k Slew Rate, Open Loop (VID = 0.5 V, CL = 15 pF) Unity−Gain Crossover Frequency φm − 63 − deg Common−Mode Rejection Ratio (VPin 6 = 7.0 V, RL = 100 k) CMRR 50 82 − dB Power Supply Rejection Ratio VCC = 9.0 to 16 V, VPin 6 = 7.0 V, RL = 100 k PSRR − 89 − dB Output Source Current (VPin 6 = 12 V) IO + − 1.8 − mA Output Sink Current (VPin 6 = 1.0 V) IO − − 250 − mA Output Voltage Swing (RL = 17 k to Ground) VOH VOL 12.5 − 13.1 0.02 − − V V Unity−Gain Phase Margin http://onsemi.com 3 MC33030 ELECTRICAL CHARACTERISTICS (continued) (VCC = 14 V, TA = 25°C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit VH 25 35 45 mV Input Dead Zone Range (V2 − V4, Figure 18) VIDZ 166 210 254 mV Input Offset Voltage ( ⎢[V2 − VPin 2] − [VPin 2 − V4] ⎟ Figure 18) VIO − 25 − mV Input Functional Common−Mode Range (Note 3) Upper Threshold Lower Threshold VIH VIL − − (VCC − 1.05) 0.24 − − VRSC − (1/2 VCC) − V tp(IN/DRV) − 2.0 − ms ROC 3.9 4.3 4.7 V IDLY(source) − 5.5 6.9 mA − − − 0.1 0.7 16.5 − − − − 0.3 0.4 6.8 5.5 7.5 6.0 8.2 6.5 tp(DLY/DRV) − 1.8 − VOH(DRV) VOL(DRV) (VCC − 2) − (VCC − 0.85) 0.12 − 1.0 tr tf − − 200 200 − − VF − 1.04 2.5 V ICC − 14 25 mA Vth(OV) 16.5 18 20.5 V VH(OV) 0.3 0.6 1.0 V VCC − 7.5 8.0 V WINDOW DETECTOR Input Hysteresis Voltage (V1 − V4, V2 − V3, Figure 18) V Reference Input Self Centering Voltage Pins 1 and 2 Open Window Detector Propagation Delay Comparator Input, Pin 3, to Drive Outputs VID = 0.5 V, RL(DRV) = 390 W OVERCURRENT MONITOR Overcurrent Reference Resistor Voltage (Pin 15) Delay Pin Source Current VDLY = 0 V, ROC = 27 k, IDRV = 0 mA Delay Pin Sink Current (ROC = 27 k, IDRV = 0 mA) VDLY = 5.0 V VDLY = 8.3 V VDLY = 14 V IDLY(sink) Delay Pin Voltage, Low State (IDLY = 0 mA) VOL(DLY) Overcurrent Shutdown Threshold VCC = 14 V VCC = 8.0 V mA Vth(OC) Overcurrent Shutdown Propagation Delay Delay Capacitor Input, Pin 16, to Drive Outputs, VID = 0.5 V V V ms POWER H−SWITCH Drive−Output Saturation (− 40°C p TA p+ 85°C, Note 4) High−State (Isource = 100 mA) Low−State (Isink = 100 mA) V Drive−Output Voltage Switching Time (CL = 15 pF) Rise Time Fall Time ns Brake Diode Forward Voltage Drop (IF = 200 mA, Note 4) TOTAL DEVICE Standby Supply Current Overvoltage Shutdown Threshold (− 40°C p TA p + 85°C) Overvoltage Shutdown Hysteresis (Device “off” to “on”) Operating Voltage Lower Threshold (− 40°C p TA p + 85°C) 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. http://onsemi.com 4 DVIO = 20 mV RL = 100 k Vsat, OUTPUT SATURATION VOLTAGE (V) 0 VCC − 400 − 800 800 400 0 − 55 GND − 25 0 25 50 75 100 125 0 VCC − 1.0 − 2.0 Source Saturation RL to GND TA = 25°C Sink Saturation RL to VCC TA = 25°C 2.0 1.0 GND 0 30 100 1.0 k 3.0 k IL, LOAD CURRENT (± mA) Figure 1. Error Amp Input Common−Mode Voltage Range versus Temperature Figure 2. Error Amp Output Saturation versus Load Current 0 80 0 Max. Pin 2 VICR so that Pin 3 can change state of drive outputs. − 0.5 45 60 Gain − 1.0 VCC − 1.5 Phase 90 40 VCC = 14 Vout = 7.0 V 20 R = 100 k L CL = 40 pF TA = 25°C 0 1.0 10 Phase Margin = 63° 100 1.0 k 10 k 135 180 1.0 M 100 k 0.3 0.2 0.1 GND 0 − 55 − 25 f, FREQUENCY (Hz) Vsat, OUTPUT SATURATION VOLTAGE (V) V2 Upper Hysteresis 7.05 V3 VCC = 14 V Pin 2 = 7.00 V 7.00 6.95 V1 Lower Hysteresis 6.90 6.85 − 55 − 25 0 25 50 25 50 75 100 125 Figure 4. Window Detector Reference−Input Common−Mode Voltage Range versus Temperature 7.15 7.10 0 TA, AMBIENT TEMPERATURE (°C) Figure 3. Open Loop Voltage Gain and Phase versus Frequency VFB, FEEDBACK−INPUT VOLTAGE (V) 300 TA, AMBIENT TEMPERATURE (°C) φ, EXCESS PHASE (DEGREES) VICR, INPUT COMMON−MODE RANGE (V) AVOL, OPEN−LOOP VOLTAGE GAIN (dB) VICR, INPUT COMMON−MODE RANGE (mV) MC33030 V4 75 100 125 0 Source Saturation RL to GND TA = 25°C VCC − 1.0 1.0 0 0 Sink Saturation RL = VCC TA = 25°C 200 GND 400 600 IL, LOAD CURRENT (± mA) TA, AMBIENT TEMPERATURE (°C) Figure 5. Window Detector Feedback−Input Thresholds versus Temperature Figure 6. Output Driver Saturation versus Load Current http://onsemi.com 5 800 TA = 25°C 400 300 200 100 0.7 0.9 1.1 1.5 1.3 600 400 200 0 0 20 40 60 80 Figure 8. Output Source Current−Limit versus Overcurrent Reference Resistance VCC = 14 V ROC = 27 k 200 ROC = 68 k − 25 0 25 50 75 100 125 IDLY, DELAY PIN SOURCE CURRENT (NORMALIZED) Figure 7. Brake Diode Forward Current versus Forward Voltage 400 1.04 1.00 0.96 0.92 VCC = 14 V 0.88 − 55 − 25 0 25 50 75 100 TA, AMBIENT TEMPERATURE (°C) TA, AMBIENT TEMPERATURE (°C) Figure 9. Output Source Current−Limit versus Temperature Figure 10. Normalized Delay Pin Source Current versus Temperature 125 28 1.04 1.02 1.00 0.98 VCC = 14 V 0.96 − 55 100 ROC, OVERCURRENT REFERENCE RESISTANCE (kW) ROC = 15 k 0 − 55 VCC = 14 V TA = 25°C VF, FORWARD VOLTAGE (V) 600 Vth(OC), OVERCURRENT DELAY THRESHOLD VOLTAGE (NORMALIZED) Isource, OUTPUT SOURCE CURRENT (mA) 0 0.5 800 ICC, SUPPLY CURRENT (mA) IF, FORWARD CURRENT (mA) 500 Isource, OUTPUT SOURCE CURRENT (mA) MC33030 24 20 Pins 6 to 7 Pins 2 to 8 TA = 25°C 16 12 Minimum Operating Voltage Range 8.0 4.0 0 − 25 0 25 50 75 100 125 0 8.0 16 Over− Voltage Shutdown Range 24 32 VCC, SUPPLY VOLTAGE (V) TA, AMBIENT TEMPERATURE (°C) Figure 11. Normalized Overcurrent Delay Threshold Voltage versus Temperature Figure 12. Supply Current versus Supply Voltage http://onsemi.com 6 40 0.98 0.96 − 25 0 25 50 75 100 125 TA, AMBIENT TEMPERATURE (°C) Figure 13. Normalized Overvoltage Shutdown Threshold versus Temperature RqJA, THERMAL RESISTANCE JUNCTION−TO−AIR (°C/W) 100 1.2 1.0 0.8 0.6 0.4 − 55 − 25 0 RqJA 60 2.0 oz Copper L 3.0 mm Graphs represent symmetrical layout 40 0 5.0 4.0 3.0 2.0 PD(max) for TA = 70°C 20 0 10 20 30 1.0 0 50 40 L, LENGTH OF COPPER (mm) Figure 15. P Suffix (DIP−16) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length 100 2.8 PD(max) for TA = 50°C 90 2.4 80 ÎÎÎÎ ÎÎÎ ÎÎÎÎ ÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎ Graph represents symmetrical layout 70 2.0 oz. Copper L 60 L 50 RqJA 40 3.0 mm 10 2.0 1.6 1.2 0.8 0.4 30 0 20 30 40 L, LENGTH OF COPPER (mm) Figure 16. DW Suffix (SOP−16L) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length http://onsemi.com 7 75 100 125 Figure 14. Normalized Overvoltage Shutdown Hysteresis versus Temperature ÎÎÎ ÎÎ ÎÎÎÎÎ L 50 TA, AMBIENT TEMPERATURE (°C) Printed circuit board heatsink example 80 25 0 50 PD, MAXIMUM POWER DISSIPATION (W) − 55 1.4 PD, MAXIMUM POWER DISSIPATION (W) 1.00 Vth(OV), OVERVOLTAGE SHUTDOWN THRESHOLD (NORMALIZED) 1.02 RqJA, THERMAL RESISTANCE JUNCTION−TO−AIR (°C/W) Vth(OV), OVERVOLTAGE SHUTDOWN THRESHOLD (NORMALIZED) MC33030 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 Detector (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 overridden 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 mA. 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 Overcurrent Monitor is designed to distinguish between motor startup 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 overcurrent 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 overcurrent 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 + V I C DLY + 7.5 C DLY + 1.36 C in μF DLY 5.5 μA DLY(source) ref This system allows the Power H−Switch to supply motor startup current for a predetermined amount of time. If the rotor is locked, the system will time−out and shutdown. 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 overcurrent 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 overcurrent latch is reset upon powerup 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 Overvoltage 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 http://onsemi.com 8 MC33030 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. VCC Motor Gearbox and Linkage VCC Non− Inverting Input Drive Output B Input Filter 9 10 11 Drive Output A 14 + 8 20 k Error Amp Inverting Input 7 20 k Output 6 Overvoltage Monitor 18 V Ref. 0.3 mA Drive Brake Logic + 20 k Q Drive 35 mA B Q Brake R Error Amp Output Filter/ Feedback Input 3.0 k 3 Direction Latch 3.0 k A Power H−Switch Q Brake S Q Q Drive 35 mA VCC Q Brake Enable + Reference Input 1 100 k 20 k Q Over− Current Latch 100 k 2 Reference Input Filter R 5.5 mA Q 50 k S + 7.5 V Ref. Window Detector 4, 5,12,13 Overcurrent Delay GND Overcurrent Monitor 16 CDLY 15 Overcurrent ROC Reference Figure 17. Representative Block Diagram and Typical Servo Application http://onsemi.com 9 MC33030 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 Overcurrent 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 Figure 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. 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 overcurrent 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 mF 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. http://onsemi.com 10 MC33030 Comparator A Non Inverting Input Threshold Window Detector V2 V3 Reference Input Voltage (Desired Actuator Position) Comparator B Inverting Input Threshold [1] V1 V4 Feedback Input (True Actuator Position) [2] Comparator A Output Comparator B Output [3] [4] Brake Enable Direction Latch Q Output [5] Direction Latch Q Output Drive/Brake Logic Q Brake [6] Q Brake [7] Overcurrent Latch Reset Input Source Drive Output A High Z Sink Power H−Switch [8] Source Drive Output B Overcurrent Monitor High Z Sink 7.5 V [9] CDLY Direction B Feedback Input less than V1 Dead Zone Feedback Input between V1 & V2 Direction A Feedback Input greater than V2 Figure 18. Timing Diagram http://onsemi.com 11 Dead Zone Feedback Input between V3 & V4 Direction B Feedback Input less than V4 MC33030 R1, R2 − Cadium Sulphide Photocell R1, R2 − 5M Dark, 3.0 k light resistance VCC ≈15° Offset Zero Flux Centering 20 k R3 − 30 k, repositions servo during R3 − darkness for next sunrise. R1 9 8 20 k R3 R2 7 Servo Driven Wheel Error Amp + Linear Hall Effect Sensor − 20 k 6 VCC 9 VCC 3.9 k TL173C Error Amp 8 20 k 7 10 k 20 k 6 B Gain VCC 1 Centering Adjust 10 k Typical sensitivity with gain set at 3.9 k is 1.5 mV/gauss. Servo motor controls magnetic field about sensor. Figure 19. Solar Tracking Servo System Figure 20. Magnetic Sensing Servo System VCC 470 MRD3056 Latch Drive A 9 39 k MRD3056 Latch Drive B 8 7 VCC Error Amp 20 k 1 0 20 k 68 k 9 Input MPS A20 8 7 Error Amp 20 k 20 k 470 VCC/2 6 1 − Activates Drive A 0 − Activates Drive B 1 Overcurrent Monitor (not shown) shuts down servo when end stop is reached. Overcurrent Monitor (not shown) shuts down servo when end stop is reached. Figure 21. Infrared Latched Two Position Servo System Figure 22. Digital Two Position Servo System 9 VCC Vin R R C1 C2 9 6 100 k 8 20 k 7 100 k 22 Ǹ Error Amp 1 R 2C 1C 2 20 k 100 k 130 k f o + 6 2p Ǹ Error Amp 20 k R = 1.0 M C1 = 1000 pF C2 = 100 pF C1 + R C 8 20 k 7 f [ 0.72 RC Rq20k C2 Q + Figure 23. 0.25 Hz Square−Wave Servo Agitator 2 Figure 24. Second Order Low−Pass Active Filter http://onsemi.com 12 MC33030 9 9 R Vin R 20 k 8 7 2C + − VA Error Amp 20 k f notch Error Amp − 20 k R3 VB R4 C + + 7 R2 6 R/2 C 8 20 k R1 1 2pRC V For 60 Hz R = 53.6 k, C = 0.05 Figure 25. Notch Filter Pin6 6 +V ǒ Ǔ ǒ Ǔ R 3 ) R4 R 2 – R 4 V A R )R R R3 B 3 1 2 Figure 26. Differential Input Amplifier VCC Cabin Temperature Sensor T 9 R1 8 20 k 7 20 k R2 R3 R4 + VRef Error Amp − V V Pin6 + 1 R2 R1 R 8 20 k + 7 R2 R3 VA ǒ Ǔ ǒ VB R R4 )1 CC R 3 R1 R 6 VCC Set Temperature 9 R + DR 20 k R4 ǒ Error Amp − 6 Ǔ DR V *V +V A B Ref 4R ) 2DR Ǔ )1 R 1 + R3, R 2 + R4, R 1 uu R R V Pin6 + 4 (VA–VB) R3 In this application the servo motor drives the heat/air conditioner modulator door in a duct system. Figure 27. Temperature Sensing Servo System Figure 28. Bridge Amplifier VCC Q R VF(D ) ) VF(D )–VBE(ON) 1 2 R [ E IMOTOR–IDRV(max) + O.C. Q S 7.5 V + 16 CDLY RE D1 D2 15 ROC 4.7 k Motor RE D1 D2 VCC 17 8 4 A 2 3 Vin VRef LM311 From Drive Outputs 470 B This circuit maintains the brake and overcurrent features of the MC33030. Set ROC to 15 k for IDRV(max) ≈ 0.5 A. A direction change signal is required at Pins 2 or 3 to reset the overcurrent latch. Figure 29. Remote Latched Shutdown Figure 30. Power H−Switch Buffer http://onsemi.com 13 MC33030 Gas Flow VCC = 12 V 6.2 k 1.76 k Zero Pressure 2.0 k Offset Adjust 12 k 5.1 k LM324 Quad Op Amp 1.0 k 8.06 k 200 S− 5.1 k MPX11DP Silicon Pressure Sensor 200 20 k Gain 1.0 k Pressure Port 4.12 k 2.4 k S+ Vacuum Port 1.0 k 2.0 V for Zero Pressure Differential VCC = 12 V 0.01 6.0 V for 100 kPa (14.5 PSI) Pressure Differential Motor 9 11 10 14 8 7 6 + B R Q 3 DIR. S Q A 12 V + Pressure Differential Reference Set 5.1 k 5.0 k + 1 Q R O.C. 1.8 k 0.01 2 Q S 4, 5,12,13 + 16 0.01 Figure 31. Adjustable Pressure Differential Regulator http://onsemi.com 14 15 15 k + MC33030 VCC = 12 V + 100 100 0.24 100 0.002 TACH Speed Set 1N4001 + 10 k 1.0 TIP42 11 9 10 14 + 10 + 1.0 k MPS A70 Motor 8 7 6 MZ2361 + RQ 3 DIR. S Q + 12 V + 1 Overcurrent Reset QR O.C. Q S 4.7 k 2 + 1N753 15 16 4, 5,12,13 30 k 1.0 k Figure 32. Switching Motor Controller With Buffered Output and Tach Feedback VCC = 12 V 100 + Speed Set 1.0 0.24 10 100 100 1.0 TIP42 11 9 10 14 2X−1N4001 + 8 10 k 10 k + + 7 10 k 20 k 6 + RQ 3 DIR. SQ + + 1 + 12 V Overcurrent Reset Q R O.C. Q S 2 + 1N753 16 1.0 k 4, 5, 12, 13 15 30 k Figure 33. Switching Motor Controller With Buffered Output and Back EMF Sensing http://onsemi.com 15 + 1.0 k MPS A70 Motor MC33030 PACKAGE DIMENSIONS PDIP−16 P SUFFIX CASE 648C−04 ISSUE D A NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. DIM A B C D E F G J K L M N INCHES MIN MAX 0.744 0.783 0.240 0.260 0.145 0.185 0.015 0.021 0.050 BSC 0.040 0.70 0.100 BSC 0.008 0.015 0.115 0.135 0.300 BSC 0_ 10_ 0.015 0.040 MILLIMETERS MIN MAX 18.90 19.90 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 K C N F 0.005 (0.13) J 8 16X 1 L 9 B 16 M M T B B A T E G 16X SEATING PLANE D 0.005 (0.13) M T A SO−16 WB CASE 751G−03 ISSUE C A D 9 1 8 16X M 14X e T A S B h X 45 _ S L A 0.25 NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. INTERPRET DIMENSIONS AND TOLERANCES PER ASME Y14.5M, 1994. 3. DIMENSIONS D AND E DO NOT INLCUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS DIM MIN MAX A 2.35 2.65 A1 0.10 0.25 B 0.35 0.49 C 0.23 0.32 D 10.15 10.45 E 7.40 7.60 e 1.27 BSC H 10.05 10.55 h 0.25 0.75 L 0.50 0.90 q 0_ 7_ B B A1 H E 0.25 8X M B M 16 q SEATING PLANE T C http://onsemi.com 16 MC33030 ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC 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 special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. 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