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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.
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PDIP-16 P SUFFIX CASE 648C
16 MC33030P AWLYYWWG 1
* * * * * * * *
16 SO-16W DW SUFFIX CASE 751G 1 A WL YY WW G = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package MC33030DW AWLYYWWG
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*
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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 Overcurrent Delay 15 Overcurrent Reference Driver 14 Output A 16 13 GND
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.
(c) Semiconductor Components Industries, LLC, 2006
1
June, 2006 - Rev. 6
Publication Order Number: MC33030/D
MC33030
Motor VCC Feedback Position 8 7 6 + 9 + - Over- Voltage Monitor Power H-Switch Error Amp VCC 11 10 14
+ 3 - Window Detector + VCC Reference Position 1 + -
Drive/ Brake Logic Programmable Over- Current Detector & Latch
Direction Memory
2 4, 5, 12, 13 CDLY 16 15 ROC
This device contains 119 active transistors.
Representative Block Diagram
ORDERING INFORMATION
Device MC33030DW MC33030DWG MC33030DWR2 MC33030DWR2G MC33030P MC33030PG Package SOIC-16 SOIC-16 (Pb-Free) SOIC-16 SOIC-16 (Pb-Free) PDIP-16 PDIP-16 (Pb-Free) 25 Units / Rail 1000 / Tape & Reel Shipping 47 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.
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MC33030
MAXIMUM RATINGS
Rating Power Supply Voltage Input Voltage Range Op Amp, Comparator, Current Limit (Pins 1, 2, 3, 6, 7, 8, 9, 15) Input Differential Voltage Range Op Amp, Comparator (Pins 1, 2, 3, 6, 7, 8, 9) 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 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) Operating Junction Temperature Operating Ambient Temperature Range Storage Temperature Range Electrostatic Discharge Sensitivity (ESD) Human Body Model (HBM) Machine Model (MM) 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
RqJA RqJC
80 15
RqJA RqJC TJ TA Tstg ESD
94 18 +150 -40 to + 85 -65 to +150 2000 200 C C C V
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 = 25C, unless otherwise noted.)
Characteristic ERROR AMP Input Offset Voltage (- 40C p TA p 85C), VPin 6 = 7.0 V, RL = 100 k 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 DVIO = 20 mV, RL = 100 k 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 Output Source Current (VPin 6 = 12 V) Output Sink Current (VPin 6 = 1.0 V) Output Voltage Swing (RL = 17 k to Ground) 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/ms kHz deg dB dB mA mA V V Symbol Min Typ Max Unit
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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) Upper Threshold Lower Threshold 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 Delay Pin Voltage, Low State (IDLY = 0 mA) Overcurrent Shutdown Threshold VCC = 14 V VCC = 8.0 V Overcurrent Shutdown Propagation Delay Delay Capacitor Input, Pin 16, to Drive Outputs, VID = 0.5 V POWER H-SWITCH Drive-Output Saturation (- 40C p TA p+ 85C, Note 4) High-State (Isource = 100 mA) Low-State (Isink = 100 mA) Drive-Output Voltage Switching Time (CL = 15 pF) Rise Time Fall Time Brake Diode Forward Voltage Drop (IF = 200 mA, Note 4) TOTAL DEVICE Standby Supply Current Overvoltage Shutdown Threshold (- 40C p TA p + 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 V VOH(DRV) VOL(DRV) tr tf VF (VCC - 2) - - - - (VCC - 0.85) 0.12 200 200 1.04 - 1.0 ns - - 2.5 V ROC IDLY(source) IDLY(sink) - - - VOL(DLY) Vth(OC) 6.8 5.5 tp(DLY/DRV) - 7.5 6.0 1.8 8.2 6.5 - ms - 0.1 0.7 16.5 0.3 - - - 0.4 V V 3.9 - 4.3 5.5 4.7 6.9 V mA mA VH VIDZ VIO VIH VIL VRSC tp(IN/DRV) 25 166 - - - - - 35 210 25 (VCC - 1.05) 0.24 (1/2 VCC) 2.0 45 254 - - - - - V ms mV mV mV V Symbol Min Typ Max Unit
Overvoltage Shutdown Hysteresis (Device "off" to "on") Operating Voltage Lower Threshold (- 40C p TA p + 85C)
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.
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MC33030
VICR, INPUT COMMON-MODE RANGE (mV) Vsat, OUTPUT SATURATION VOLTAGE (V)
0
DVIO = 20 mV RL = 100 k
0 VCC - 1.0 Source Saturation RL to GND TA = 25C
VCC
- 400 - 800 800 400 0 - 55 GND - 25 0 25 50 75 100 125
- 2.0 2.0 1.0
Sink Saturation RL to VCC TA = 25C GND
0 30
100
300
1.0 k
3.0 k
TA, AMBIENT TEMPERATURE (C)
IL, LOAD CURRENT ( mA)
Figure 1. Error Amp Input Common-Mode Voltage Range versus Temperature
Figure 2. Error Amp Output Saturation versus Load Current
80
0
, EXCESS PHASE (DEGREES) VICR, INPUT COMMON-MODE RANGE (V)
AVOL, OPEN-LOOP VOLTAGE GAIN (dB)
0
- 0.5 - 1.0 - 1.5
60 Gain Phase 40 VCC = 14 Vout = 7.0 V 20 R = 100 k L CL = 40 pF TA = 25C 0 1.0 10 Phase Margin = 63
45
Max. Pin 2 VICR so that Pin 3 can change state of drive outputs.
VCC
90
0.3 0.2 0.1 0 - 55 - 25 0 25 GND 50 75 100 125
135
100
1.0 k
10 k
100 k
180 1.0 M
f, FREQUENCY (Hz)
TA, AMBIENT TEMPERATURE (C)
Figure 3. Open Loop Voltage Gain and Phase versus Frequency
Figure 4. Window Detector Reference-Input Common-Mode Voltage Range versus Temperature
Vsat, OUTPUT SATURATION VOLTAGE (V) 0 VCC - 1.0 Source Saturation RL to GND TA = 25C
VFB, FEEDBACK-INPUT VOLTAGE (V)
7.15 V2 7.10 7.05 7.00 6.95 6.90 6.85 - 55 - 25 0 Lower Hysteresis Upper Hysteresis V3 VCC = 14 V Pin 2 = 7.00 V
V1 V4
1.0
25
50
75
100
125
0 0
Sink Saturation RL = VCC TA = 25C 200 400
GND 600 800
TA, AMBIENT TEMPERATURE (C)
IL, LOAD CURRENT ( mA)
Figure 5. Window Detector Feedback-Input Thresholds versus Temperature
Figure 6. Output Driver Saturation versus Load Current
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MC33030
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
400
200
0.7
0.9
1.1
1.3
1.5
0 0
20
40
60
80
100
VF, FORWARD VOLTAGE (V)
ROC, OVERCURRENT REFERENCE RESISTANCE (kW)
Figure 7. Brake Diode Forward Current versus Forward Voltage
Figure 8. Output Source Current-Limit versus Overcurrent Reference Resistance
Isource, OUTPUT SOURCE CURRENT (mA)
600 ROC = 15 k VCC = 14 V
IDLY, DELAY PIN SOURCE CURRENT (NORMALIZED)
1.04
1.00
400 ROC = 27 k
0.96
200 ROC = 68 k
0.92 VCC = 14 V 0.88 - 55
0 - 55
- 25
0
25
50
75
100
125
- 25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (C)
TA, AMBIENT TEMPERATURE (C)
Figure 9. Output Source Current-Limit versus Temperature
Vth(OC), OVERCURRENT DELAY THRESHOLD VOLTAGE (NORMALIZED)
Figure 10. Normalized Delay Pin Source Current versus Temperature
1.04 ICC, SUPPLY CURRENT (mA)
28 24 20 16 12 8.0 4.0 0 - 25 0 25 50 75 100 125 0 8.0 Minimum Operating Voltage Range 16 Over- Voltage Shutdown Range 24 32 40 Pins 6 to 7 Pins 2 to 8 TA = 25C
1.02
1.00
0.98 VCC = 14 V 0.96 - 55
TA, AMBIENT TEMPERATURE (C)
VCC, SUPPLY VOLTAGE (V)
Figure 11. Normalized Overcurrent Delay Threshold Voltage versus Temperature
Figure 12. Supply Current versus Supply Voltage
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MC33030
Vth(OV), OVERVOLTAGE SHUTDOWN THRESHOLD (NORMALIZED) Vth(OV), OVERVOLTAGE SHUTDOWN THRESHOLD (NORMALIZED)
1.4 1.2 1.0 0.8 0.6 0.4 - 55
1.02
1.00
0.98
0.96 - 55 - 25 0 25 50 75 100 125
- 25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (C)
TA, AMBIENT TEMPERATURE (C)
Figure 13. Normalized Overvoltage Shutdown Threshold versus Temperature
Figure 14. Normalized Overvoltage Shutdown Hysteresis versus Temperature
PD, MAXIMUM POWER DISSIPATION (W) PD, MAXIMUM POWER DISSIPATION (W)
100 RqJA, THERMAL RESISTANCE JUNCTION-TO-AIR (C/W) 80 60 40 20 RqJA
Printed circuit board heatsink example
5.0 4.0 3.0 2.0
L
L 3.0 mm Graphs represent symmetrical layout
PD(max) for TA = 70C
0
0
10
20
L, LENGTH OF COPPER (mm)
Figure 15. P Suffix (DIP-16) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length
100 RqJA, THERMAL RESISTANCE JUNCTION-TO-AIR (C/W) PD(max) for TA = 50C 90 80 70 60 50 40 30 0 10 20 30 40 L, LENGTH OF COPPER (mm) RqJA Graph represents symmetrical layout
Figure 16. DW Suffix (SOP-16L) Thermal Resistance and Maximum Power Dissipation versus P.C.B. Copper Length
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III IIIIIII II IIIIIII IIIII
L
2.0 oz. Copper L
IIIII IIIII
2.0 oz Copper
1.0 0 50
30
40
2.8 2.4 2.0 1.6 1.2 0.8 0.4 0 50
3.0 mm
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 + I DLY + 7.5 C DLY + 1.36 C in F DLY 5.5 A DLY(source) ref V C
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
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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 Gearbox and Linkage Input Filter Drive Output B 11 Overvoltage Monitor 18 V Ref. 0.3 mA + 20 k 35 mA 3.0 k 3.0 k 35 mA + Reference Input 1 100 k 100 k 2 Reference Input Filter 20 k Over- Current Latch Q R 5.5 mA Q S + Window Detector 4, 5,12,13 GND 7.5 V Ref. Overcurrent Delay 16 CDLY 15 Overcurrent ROC Reference Overcurrent Monitor 50 k A Q Drive B R Error Amp Output Filter/ Feedback Input 3 Direction Latch S Q 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
Figure 17. Representative Block Diagram and Typical Servo Application
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MC33030
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. 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.
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MC33030
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]
Overcurrent 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
Overcurrent Monitor
[9] Direction B Feedback Input less than V4
Figure 18. Timing Diagram
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MC33030
VCC 15 Offset 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.
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 VCC Error Amp + - 20 k 6 Linear Hall Effect Sensor B Gain 3.9 k 10 k 6 8 20 k 7 20 k 9
R1
Zero Flux Centering 20 k VCC Error Amp
R2
8 20 k 7
TL173C
Figure 19. Solar Tracking Servo System
VCC 470 MRD3056 Latch Drive A MRD3056 Latch Drive B 470 VCC/2 1 9 39 k 8 7 20 k 20 k Error Amp 1 0
Figure 20. Magnetic Sensing Servo System
VCC Input MPS A20 8 7 6 20 k 20 k 1 - Activates Drive A 0 - Activates Drive B
9 Error Amp
68 k
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 9 100 k 8 20 k 7 100 k 100 k 130 k 22 +R C f [ 0.72 RC R q 20 k Q+ 6 C1 C2 2 20 k Error Amp 1 R 2 C 1C 2 fo
+
R C1
R C2
8 20 k 7 6 20 k
Error Amp
2p
R = 1.0 M C1 = 1000 pF C2 = 100 pF
Figure 23. 0.25 Hz Square-Wave Servo Agitator
Figure 24. Second Order Low-Pass Active Filter
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MC33030
9 9 Vin R 2C R/2 C f + R 8 7 20 k 6 C 1 2pRC VB 20 k + - Error Amp VA R1 R2 R3 R4 6 R 3 ) R4 R 2- A R )R R 3 1 2 R4 8 20 k 7 20 k + - Error Amp
notch
V
For 60 Hz R = 53.6 k, C = 0.05
Pin 6
+V
V R3 B
Figure 25. Notch Filter
Figure 26. Differential Input Amplifier
VCC Cabin Temperature Sensor T R1 8 7 20 k R2 R3 R4 VCC Set Temperature V V Pin 6 + R4 )1 CC R 3 R1 R2 )1 1 6 R R 20 k 9 + - Error Amp R + DR VRef 9 R VB R1 R2 8 7 20 k R4 6 20 k + - Error Amp
VA
R3
DR V *V +V A B Ref 4R ) 2DR R 1 + R3, R 2 + R4, R 1 uu R R V Pin 6 + 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 Q R S 7.5 V + RE D1 D2 VCC 8 2 3 A From Drive Outputs B
A direction change signal is required at Pins 2 or 3 to reset the overcurrent latch. This circuit maintains the brake and overcurrent features of the MC33030. Set ROC to 15 k for IDRV(max) 0.5 A.
+
VF(D ) ) VF(D )-VBE(ON) 1 2 R[ E IMOTOR-IDRV(max)
O.C. Motor RE D1 D2
16 CDLY 4.7 k
15 ROC
17 4
Vin VRef LM311
470
Figure 29. Remote Latched Shutdown
Figure 30. Power H-Switch Buffer
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MC33030
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 200 200 20 k Gain 8.06 k S- MPX11DP Silicon Pressure Sensor 1.76 k Pressure Port Gas Flow
5.1 k
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
Figure 31. Adjustable Pressure Differential Regulator
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MC33030
VCC = 12 V 100 0.002 TACH Speed Set 1N4001 + 10 k 1.0 9 8 7 MZ2361 6 + 11 10 14
+
+ 100 100 TIP42 0.24
10
+
1.0 k MPS A70 Motor
RQ 3 DIR. SQ + 12 V 1 Overcurrent Reset 4.7 k 2 1N753 4, 5,12,13 16 1.0 k 15 QR O.C. QS +
+
30 k
Figure 32. Switching Motor Controller With Buffered Output and Tach Feedback
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
0.24 10 TIP42
+
1.0 k MPS A70 Motor
3
RQ DIR. SQ +
+ 12 V Overcurrent Reset 1N753
1
+ QR O.C. QS
2
+
4, 5, 12, 13
16 1.0 k
15
30 k
Figure 33. Switching Motor Controller With Buffered Output and Back EMF Sensing http://onsemi.com
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MC33030
PACKAGE DIMENSIONS
PDIP-16 P SUFFIX CASE 648C-04 ISSUE D
A A
16 9 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. 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
J
16X
1
8
0.005 (0.13)
B
L
M
TB
B M
F
DIM A B C D E F G J K L M N
N K C
E G
16X
T D
M
SEATING PLANE
0.005 (0.13)
TA
SO-16 WB CASE 751G-03 ISSUE C
D
16 M 9
A
q
h X 45_
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_
H
M
B
8X
1
8
16X
B TA
S
0.25
M
B
S
A
E B
A1
14X
e
SEATING PLANE
T
C
http://onsemi.com
16
L
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. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC 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 SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.
PUBLICATION ORDERING INFORMATION
LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303-675-2175 or 800-344-3860 Toll Free USA/Canada Fax: 303-675-2176 or 800-344-3867 Toll Free USA/Canada Email: orderlit@onsemi.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81-3-5773-3850 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative
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17
MC33030/D

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