MC33030P - ON Semiconductor - Datasheet.Directory

June, 2006 − Rev. 6 1Publication Order Number:

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 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.

Features

•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*

*For additional information on our Pb−Free strategy and soldering details, please

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

MARKING

DIAGRAMS

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G = Pb−Free Package

PDIP−16

P SUFFIX

CASE 648C

SO−16W

DW SUFFIX

CASE 751G

116

(Top View)

Reference

Input

Reference

Input Filter

Error Amp Output

Filter/Feedback Input

GND

Error Amp

Output

Error Amp

Inverting Input

Error Amp Non−

Inverting Input

Overcurrent

Delay

GND

Error Amp

Input Filter

PIN CONNECTIONS

Driver

Output B

VCC

Driver

Output A

Overcurrent

Reference

Pins 4, 5, 12 and 13 are electrical

ground and heat sink pins for IC.

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See detailed ordering and shipping information in the package

dimensions section on page 2 of this data sheet.

ORDERING INFORMATION

MC33030DW

AWLYYWWG

MC33030P

AWLYYWWG

MC33030

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Motor

1011

VCC

ROC

CDLY

1516

Power

H−Switch

Programmable

Over−

Current

Detector

& Latch

4, 5, 12, 13

Reference

Position

VCC

−Direction

Memory

Window

Detector

Drive/

Brake

Logic

Over−

Voltage

Monitor

−

Error Amp

Feedback

Position

VCC

Representative Block Diagram

This device contains 119 active transistors.

ORDERING INFORMATION

Device Package Shipping†

MC33030DW SOIC−16 47 Units / Rail

MC33030DWG SOIC−16

(Pb−Free)

MC33030DWR2 SOIC−16 1000 / Tape & Reel

MC33030DWR2G SOIC−16

(Pb−Free)

MC33030P PDIP−16 25 Units / Rail

MC33030PG PDIP−16

(Pb−Free)

†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.

MC33030

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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

Input Differential Voltage Range

Op Amp, Comparator (Pins 1, 2, 3, 6, 7, 8, 9) VIDR −0.3 to VCC V

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

Drive Output Sink Current (Note 2) IDRV(sink) 1.0 A

Brake Diode Forward Current (Note 2) IF1.0 A

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

RqJA

RqJC

°C/W

Operating Junction Temperature TJ+150 °C

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 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

ERROR AMP

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

Input Common−Mode Voltage Range

DVIO = 20 mV, RL = 100 k VICR −0 to (VCC − 1.2) − V

Slew Rate, Open Loop (VID = 0.5 V, CL = 15 pF) SR − 0.40 − V/ms

Unity−Gain Crossover Frequency fc− 550 − kHz

Unity−Gain Phase Margin 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

MC33030

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ELECTRICAL CHARACTERISTICS (continued) (VCC = 14 V, TA = 25°C, unless otherwise noted.)

Characteristic Symbol Min Typ Max Unit

WINDOW DETECTOR

Input Hysteresis Voltage (V1 − V4, V2 − V3, Figure 18) VH25 35 45 mV

Input Dead Zone Range (V2 − V4, Figure 18) VIDZ 166 210 254 mV

Input OffsetVoltage (⎢[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 −

−

Reference Input Self Centering Voltage

Pins 1 and 2 Open VRSC −(1/2 VCC) − V

Window Detector Propagation Delay

Comparator Input, Pin 3, to Drive Outputs

VID = 0.5 V, RL(DRV) = 390 W

tp(IN/DRV) − 2.0 − ms

OVERCURRENT MONITOR

Overcurrent Reference Resistor Voltage (Pin 15) ROC 3.9 4.3 4.7 V

Delay Pin Source Current

VDLY = 0 V, ROC = 27 k, IDRV = 0 mA IDLY(source) − 5.5 6.9 mA

Delay Pin Sink Current (ROC = 27 k, IDRV = 0 mA)

VDLY = 5.0 V

VDLY = 8.3 V

VDLY = 14 V

IDLY(sink) −

−

0.1

0.7

16.5

−

Delay Pin Voltage, Low State (IDLY = 0 mA) VOL(DLY) − 0.3 0.4 V

Overcurrent Shutdown Threshold

VCC = 14 V

VCC = 8.0 V

Vth(OC) 6.8

5.5 7.5

6.0 8.2

6.5

Overcurrent Shutdown Propagation Delay

Delay Capacitor Input, Pin 16, to Drive Outputs, VID = 0.5 V tp(DLY/DRV) − 1.8 − 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) VOH(DRV)

VOL(DRV) (VCC − 2)

−(VCC − 0.85)

0.12 −

1.0

Drive−Output Voltage Switching Time (CL = 15 pF)

Rise Time

Fall Time tr

tf−

−200

200 −

−

Brake Diode Forward Voltage Drop (IF = 200 mA, Note 4) VF− 1.04 2.5 V

TOTAL DEVICE

Standby Supply Current ICC − 14 25 mA

Overvoltage Shutdown Threshold (− 40°C p TA p + 85°C) Vth(OV) 16.5 18 20.5 V

Overvoltage Shutdown Hysteresis (Device “off” to “on”) VH(OV) 0.3 0.6 1.0 V

Operating Voltage Lower Threshold (− 40°C p TA p + 85°C) VCC − 7.5 8.0 V

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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Vsat, OUTPUT SATURATION VOLTAGE (V) VICR, INPUT COMMON−MODE RANGE (V)

VOL

, OPEN−LOOP VOLTAGE GAIN (dB)

φ, EXCESS PHASE (DEGREES) Vsat, OUTPUT SATURATION VOLTAGE (V)

ICR

, INPUT COMMON−MODE RANGE (mV)

VCC

DVIO = 20 mV

RL = 100 k

GND

25 3.0

100 1.0 k300

VCC

1.0

− 2.0

2.0

− 1.0

IL, LOAD CURRENT (± mA)

10050 750− 25

TA, AMBIENT TEMPERATURE (°C)

− 55

400

800

− 800

− 400

Figure 1. Error Amp Input Common−Mode

Voltage Range versus Temperature Figure 2. Error Amp Output Saturation

versus Load Current

VCC

0255075100

− 0.5

− 1.0

− 1.5

0.3

0.2

0.1 GND

− 25

TA, AMBIENT TEMPERATURE (°C)

Max. Pin 2 VICR so

that Pin 3 can change

state of drive outputs.

− 55

180

135

Figure 3. Open Loop Voltage Gain and

Phase versus Frequency

Phase

VCC = 14

Vout = 7.0 V

RL = 100 k

CL = 40 pF

TA = 25°C

Phase

Margin

= 63°

1.0 10 100 10 k 100 k 1.0 M1.0 k

f, FREQUENCY (Hz)

Gain

Figure 4. Window Detector Reference−Input

Common−Mode Voltage Range

versus Temperature

IL, LOAD CURRENT (±mA)

VCC = 14 V

Pin 2 = 7.00 V

6.85

TA, AMBIENT TEMPERATURE (°C)

6.95

6.90

7.10

7.05

7.00

7.15

0 25 50 75 100

− 1.0

1.0

VCC

Sink Saturation

RL = VCC

TA = 25°C

− 55 − 25 125

GND

Figure 5. Window Detector Feedback−Input

Thresholds versus Temperature

0 200 400 600 80

Lower Hysteresis

Figure 6. Output Driver Saturation

versus Load Current

Source Saturation

RL to GND

TA = 25°C

Upper Hysteresis

GND

Source Saturation

RL to GND

TA = 25°C

Sink Saturation

RL to VCC

TA = 25°C

125

, FEEDBACK−INPUT VOLTAGE (V)

MC33030

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th(OC)

, OVERCURRENT DELAY THRESHOLD

VOLTAGE (NORMALIZED)

IDLY, DELAY PIN SOURCE CURRENT

(NORMALIZED)

source

, OUTPUT SOURCE CURRENT (mA)

Isource, OUTPUT SOURCE CURRENT (mA

)

, FORWARD CURRENT (mA)

Figure 7. Brake Diode Forward Current

versus Forward Voltage

VF, FORWARD VOLTAGE (V)

TA = 25°C

Figure 8. Output Source Current−Limit versus

Overcurrent Reference Resistance

1.5

ROC, OVERCURRENT REFERENCE RESISTANCE (kW

)

VCC = 14 V

TA = 25°C

800

806040020

600

400

1.10.90.70.5

01.3

100

200

300

400

200

500

TA, AMBIENT TEMPERATURE (°C)

Figure 9. Output Source Current−Limit

versus Temperature

− 55

VCC = 14 V

− 25 0

TA, AMBIENT TEMPERATURE (°C)

1.00

0.96

0.92

0.88

− 55 12

25 50 10075

1.04

ROC = 27 k

ROC = 68 k

ROC = 15 k

12575500− 25 100

VCC = 14 V

400

600

200

Figure 10. Normalized Delay Pin Source

Current versus Temperature

Figure 11. Normalized Overcurrent Delay

Threshold Voltage versus Temperature Figure 12. Supply Current versus

Supply Voltage

75 1005025− 55

0.96

0.98

1.04

1.00

0− 25

VCC = 14 V

Pins 6 to 7

Pins 2 to 8

TA = 25°C

125

1.02

32 40

4.0

8.0

VCC, SUPPLY VOLTAGE (V)

TA, AMBIENT TEMPERATURE (°C)

Over−

Voltage

Shutdown

Range

8.0016

Minimum

Operating

Voltage

Range

ICC, SUPPLY CURRENT (mA)

MC33030

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PD, MAXIMUM POWER DISSIPATION (W)

RqJA, THERMAL RESISTANCE

JUNCTION−TO−AIR (°C/W)

PD, MAXIMUM POWER DISSIPATION (W)

RqJA, THERMAL RESISTANCE

JUNCTION−TO−AIR (°C/W)

Vth(OV), OVERVOLTAGE SHUTDOWN THRESHOLD

(NORMALIZED)

th(OV)

, OVERVOLTAGE SHUTDOWN THRESHOLD

(NORMALIZED)

PD(max) for TA = 50°C

RqJA

PD(max) for TA = 70°C

RqJA

Figure 13. Normalized Overvoltage Shutdown

Threshold versus Temperature

− 25 0− 55 12

1.00

TA, AMBIENT TEMPERATURE (°C)

− 25 0 75 10050

TA, AMBIENT TEMPERATURE (°C)

− 55 12525 50 10075 25

Figure 14. Normalized Overvoltage Shutdown

Hysteresis versus Temperature

0.4

0.6

0.8

1.0

1.2

1.4

1.02

0.98

0.96

0.4

0.8

1.2

1.6

2.0

2.4

02030504010

L, LENGTH OF COPPER (mm)

100 2.8

ÎÎÎ

ÎÎÎÎ

ÎÎÎ

2.0 oz.

Copper

Graph represents symmetrical layout

3.0 mmL

Figure 15. P Suffix (DIP−16) Thermal

Resistance and Maximum Power Dissipation

versus P.C.B. Copper Length

ÎÎÎ

Graphs represent symmetrical layout

3.0 mm

Printed circuit board heatsink example

100

10 20 30 40 50

L, LENGTH OF COPPER (mm)

5.0

4.0

3.0

2.0

1.0

2.0 oz

Copper

ÎÎ

Figure 16. DW Suffix (SOP−16L) Thermal

Resistance and Maximum Power Dissipation

versus P.C.B. Copper Length

MC33030

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OPERATING DESCRIPTION

The MC33030 w as d esigned t o drive f ractional h orsepower

DC motors and sense actuator position by voltage feedback.

A typical se rvo applicati on 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 dif ferential 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 char ge 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.

tDLY +Vref CDLY

IDLY(source) +7.5 CDLY

5.5 μA+1.36 CDLY in μF

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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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 of f. 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.

Inverting

Input

Overvoltage

Monitor

Drive Brake Logic

Drive

Output A

Drive

Output B

VCC

Motor

Power

H−Switch

Q Brake

Overcurrent

Monitor

Overcurrent

Reference

ROC

CDLY

Overcurrent

Delay

5.5

7.5 V

Ref.

50 k

Over−

Current

Latch

Q Drive

Brake Enable

Direction

Latch

18 V

Ref.

Gearbox and Linkage

GND

4, 5,12,13

Window

Detector

VCC

Reference

Input Filter

20 k

3.0 k

20 k

Non−

Inverting

Input

Filter

VCC

Output

20 k

0.3 mA

820 k Error Amp

Error Amp

Output Filter/

Feedback

Input

Figure 17. Representative Block Diagram and Typical Servo Application

100 k

Reference

Input

100 k

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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 V pin 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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Drive/Brake

Logic

Power

H−Switch

Overcurrent

Monitor CDLY

Direction B

Feedback Input

less than V4

Dead Zone

Feedback Input

between V3 & V4

Direction A

Feedback Input

greater than V2

Dead Zone

Feedback Input

between V1 & V2

Reference Input Voltage

(Desired Actuator

Position)

Feedback Input

(True Actuator

Position)

Direction Latch

Q Output

Brake Enable

Q Brake

Direction Latch

Q Output

Sink

Source

Overcurrent

Latch Reset Input

High Z

Sink

High Z

Source

Drive

Output A

[1]

7.5 V

Comparator A

Non Inverting Input

Threshold

Comparator B

Inverting Input

Threshold

Comparator

B Output

[9]

[8]

[7]

[5]

Drive

Output B

[6]

[4]

[3]

[2]

Figure 18. Timing Diagram

Direction B

Feedback Input

less than V1

Comparator

A Output

Window

Detector

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10 k

Gain

3.9 k

20 k

TL173C

Linear

Hall

Effect

Sensor

VCC

Zero Flux

Centering

VCC

10 k

20 k

Error Amp

−

Centering

Adjust

Figure 19. Solar Tracking Servo System

R3 − 30 k, repositions servo during

R3 − darkness for next sunrise.

R1, R2 − Cadium Sulphide Photocell

R1, R2 − 5M Dark, 3.0 k light resistance

20 k

VCC

20 k

Error Amp

R1≈15°

Offset

Figure 20. Magnetic Sensing Servo System

VCC

Typical sensitivity with gain set at 3.9 k is 1.5 mV/gauss.

Servo motor controls magnetic field about sensor.

Servo Driven

Wheel

Input

MPS

A20

VCC

470

1 − Activates Drive A

0 − Activates Drive B

VCC/2

39 k

68 k

VCC

20 k

Error Amp

20 k

Error Amp

20 k

MRD3056

Latch

MRD3056

Latch

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

Drive A

Drive B

VCC

100 k

20 k

130 k

Vin

20 k

100 k

Error Amp

20 k

RError Amp

f[0.72

fo+

R2C1C2

2p

Rq20k Q+

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

MC33030

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20 k

For 60 Hz R = 53.6 k, C = 0.05

Vin

20 k

R/2

Figure 25. Notch Filter Figure 26. Differential Input Amplifier

Error Amp

−

20 k

fnotch +1

2pRC VPin6 +VAǒR3)R4

R1)R2ǓR2

–ǒR4

VBǓ

VRef

R + DRR

20 k

Set

Temperature

Cabin

Temperature

Sensor

VCC

TR1

VCC

20 k

Figure 27. Temperature Sensing Servo System

−

Error Amp

In this application the servo motor drives the

heat/air conditioner modulator door in a duct system.

VPin6 +

(V

A–VB)

VPin6 +

VCCǒR4

R3)1Ǔ

ǒR1

R2)1Ǔ

VA*VB+VRefǒDR

4R )2DRǓ

R1+R

3, R2+R4, R1uu R

Figure 28. Bridge Amplifier

CDLY

4.7 k

VCC

LM311

ROC

15 7

3VRef

Vin

O.C.

7.5 V

470

D1D1

Figure 29. Remote Latched Shutdown

VCC

Motor

A direction change signal is required at Pins 2 or 3 to

reset the overcurrent latch.

RE[

VF(D1))V

F(D2)–VBE(ON)

IMOTOR–IDRV(max) 

This circuit maintains the brake and overcurrent

features of the MC33030. Set ROC to 15 k for

IDRV(max) ≈ 0.5 A.

From Drive

Outputs

Figure 30. Power H−Switch Buffer

MC33030

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6.0 V for 100 kPa

(14.5 PSI)

Pressure Differential

4, 5,12,13

Pressure

Differential

Reference Set

1.8 k

5.0 k

5.1 k

12 V

0.01 2

15 k

0.01

Motor

O.C.

VCC = 12 V

11 10

DIR.

0.01

2.0 V for Zero

Pressure Differential

Figure 31. Adjustable Pressure Differential Regulator

1.0 k

Zero Pressure

Offset Adjust

2.0 k

VCC = 12 V

Pressure

Port

1.76 k

Gas Flow

MPX11DP

Silicon

Pressure

Sensor

Vacuum

Port

S +

1.0 k

LM324 Quad

Op Amp

2.4 k

4.12 k

S −

8.06 k

1.0 k

200

6.2 k

5.1 k

12 k

5.1 k

20 k

Gain

MC33030

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1.0

+10 k

1N4001

Speed

Set

MZ2361

1.0 k

4.7 k

Figure 32. Switching Motor Controller With Buffered Output and Tach Feedback

TACH +

+10 +

0.24

VCC = 12 V

1.0 k

MPS

A70

TIP42

100

1N753

Overcurrent

Reset

0.002

Motor

100

4, 5,12,13

O.C.

DIR.

15 30 k

12 V

100

O.C.

DIR.

Figure 33. Switching Motor Controller With Buffered Output and Back EMF Sensing

2X−1N4001

10 k

1N753

+ 12 V

1.0 k

Speed

Set

4, 5, 12, 13

1011

30 k

10 k

Overcurrent

Reset

1.0 10 k

20 k

1.0

100 +

VCC = 12 V

100

MPS

A70

1.0 k

Motor

TIP42

0.24 +

MC33030

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PACKAGE DIMENSIONS

PDIP−16

P SUFFIX

CASE 648C−04

ISSUE D

DIM MIN MAX MIN MAX

MILLIMETERSINCHES

A0.744 0.783 18.90 19.90

B0.240 0.260 6.10 6.60

C0.145 0.185 3.69 4.69

D0.015 0.021 0.38 0.53

E0.050 BSC 1.27 BSC

F0.040 0.70 1.02 1.78

G0.100 BSC 2.54 BSC

J0.008 0.015 0.20 0.38

K0.115 0.135 2.92 3.43

L0.300 BSC 7.62 BSC

M0 10 0 10

N0.015 0.040 0.39 1.01

____

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.

16 9

16X

0.005 (0.13) T

SEATING

PLANE

0.005 (0.13) T

J16X

SO−16 WB

CASE 751G−03

ISSUE C

14X

B16X

SEATING

PLANE

0.25 B S

16 9

hX 45_

0.25

H8X

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.

DIM MIN MAX

MILLIMETERS

A2.35 2.65

A1 0.10 0.25

B0.35 0.49

C0.23 0.32

D10.15 10.45

E7.40 7.60

e1.27 BSC

H10.05 10.55

h0.25 0.75

L0.50 0.90

q0 7

MC33030

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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

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