Motorola MC33033DWR2, MC33033P, MC33033DW Datasheet

 

T

40° t

85°C

 

The MC33033 is a high performance second generation, limited feature,
monolithic brushless dc motor controller which has evolved from Motorola′s
full featured MC33034 and MC33035 controllers. It contains all of the active
functions required for the implementation of open loop, three or four phase
motor control. The device consists of a rotor position decoder for proper
commutation sequencing, temperature compensated reference capable of
supplying sensor power, frequency programmable sawtooth oscillator, fully
accessible error amplifier, pulse width modulator comparator, three open
collector top drivers, and three high current totem pole bottom drivers ideally
suited for driving power MOSFETs. Unlike its predessors, it does not feature
separate drive circuit supply and ground pins, brake input, or fault output
signal.

Included in the MC33033 are protective features consisting of
undervoltage lockout, cycle–by–cycle current limiting with a selectable time
delayed latched shutdown mode, and internal thermal shutdown.

Typical motor control functions include open loop speed, forward or
reverse direction, and run enable.The MC33033 is designed to operate
brushless motors with electrical sensor phasings of 60°/300° or 120°/240°,
and can also efficiently control brush dc motors.

Order this document by MC33033/D



BRUSHLESS DC

MOTOR CONTROLLER

SEMICONDUCTOR

TECHNICAL DATA

20

1

P SUFFIX

PLASTIC PACKAGE

CASE 738

• 10 to 30 V Operation

• Undervoltage Lockout

• 6.25 V Reference Capable of Supplying Sensor Power

• Fully Accessible Error Amplifier for Closed Loop Servo Applications

• High Current Drivers Can Control External 3–Phase MOSFET Bridge

• Cycle–By–Cycle Current Limiting

• Internal Thermal Shutdown

• Selectable 60°/300° or 120°/240° Sensor Phasings

• Also Efficiently Control Brush DC Motors with External MOSFET

H–Bridge

ORDERING INFORMATION

Operating

Device

MC33033DW
MC33033P

Temperature Range

°

A

= –

o +

°

Package

SO–20L

Plastic DIP

20

PLASTIC PACKAGE

PIN CONNECTIONS

Top Drive

Output

Sensor

Inputs

Reference Output

Non Inverting Input

Inverting Input

B

T

A

T

S

A

S

B

S

C

Oscillator

Error Amp
Error Amp

1

DW SUFFIX

CASE 751D

(SO–20L)

1
2
3

4
5
6

7
8
9

10

20

C

T

19

Output Enable

18

°

/120°SelectFwd/Rev

60
A

17

B

16
15
14
13
12
11

Bottom

B

Drive

B

Outputs

C

B

V

CC

Gnd
Current Sense

Non Inverting Input
Error Amp Out/
PWM Input

(Top View)

 Motorola, Inc. 1996 Rev 3

MOTOROLA ANALOG IC DEVICE DATA

1

FWR/REV

60°/120

Enable

Speed
Set

R

T

C

T

°

V

Faster

CC

Reference

Regulator

Error Amp

Oscillator

PWM

MC33033

Representative Schematic Diagram

Rotor

Position

Decoder

Undervoltage

Lockout

Thermal

Shutdown

R

Q

S
S

Q

R

V

M

Output

Buffers

N

SS

N

Motor

This device contains 266 active transistors.

Current Sense

2

MOTOROLA ANALOG IC DEVICE DATA

MC33033

MAXIMUM RATINGS

Rating Symbol Value Unit

Power Supply Voltage V
Digital Inputs (Pins 3, 4, 5, 6, 18, 19) – V

Oscillator Input Current (Source or Sink) I
Error Amp Input Voltage Range

(Pins 9, 10, Note 1)

Error Amp Output Current

(Source or Sink, Note 2)
Current Sense Input Voltage Range V
Top Drive V oltage (Pins 1, 2, 20) V
Top Drive Sink Current (Pins 1, 2, 20) I
Bottom Drive Output Current

(Source or Sink, Pins 15,16, 17)
Power Dissipation and Thermal Characteristics

P Suffix, Dual–In–Line, Case 738

Maximum Power Dissipation @ TA = 85°C P
Thermal Resistance, Junction–to–Air R

DW Suffix, Surface Mount, Case 751D

Maximum Power Dissipation @ TA = 85°C P

Thermal Resistance, Junction–to–Air R
Operating Junction Temperature T
Operating Ambient Temperature Range T
Storage Temperature Range T

CC

OSC
V

IR

I

Out

Sense

CE(top)

Sink(top)

I

DRV

D

θJA

D

θJA

J

A

stg

–0.3 to V

–0.3 to 5.0 V

–40 to +85 °C

–65 to +150 °C

30 V

ref

30 mA

ref

10 mA

40 V
50 mA

100 mA

867 mW

75 °C/W

619 mW
105 °C/W

150 °C

V

V

ELECTRICAL CHARACTERISTICS (V

Characteristic

REFERENCE SECTION

Reference Output Voltage (I

TA = 25°C
TA = –40° to + 85°C

Line Regulation (VCC = 10 V to 30 V, I
Load Regulation (I
Output Short–Circuit Current (Note 3) I
Reference Under Voltage Lockout Threshold V

ERROR AMPLIFIER

Input Offset Voltage (TA = –40° to + 85°C) V
Input Offset Current (TA = –40° to + 85°C) I

Input Bias Current (TA = –40° to + 85°C) I
Input Common Mode Voltage Range V
Open Loop Voltage Gain (VO = 3.0 V, RL = 15 k) A
Input Common Mode Rejection Ratio CMRR 55 86 – dB
Power Supply Rejection Ratio (VCC = 10 V to 30 V) PSRR 65 105 – dB
Output Voltage Swing

High State (RL = 15 k to Gnd)
Low State (RL = 17 k to V

NOTES: 1. The input common mode voltage or input signal voltage should not be allowed to go negative by more than 0.3 V.

2.The compliance voltage must not exceed the range of –0.3 to V

3.Maximum package power dissipation limits must be observed.

= 1.0 mA to 20 mA) Reg

ref

= 1.0 mA)

ref

)

ref

= 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.)

CC

Symbol Min Typ Max Unit

V

= 1.0 mA) Reg

ref

ref

ref

line

load

SC

th

IO

IO
IB

ICR

VOL

V

OH

V

OL

.

5.9

5.82
– 1.5 30 mV

– 16 30 mV

40 75 – mA

4.0 4.5 5.0 V

– 0.4 10 mV
– 8.0 500 nA

– –46 –1000 nA

70 80 – dB

4.6
–

6.24
–

(0 V to V

5.3

0.5

6.5

6.57

ref)

–

1.0

V

V

V

MOTOROLA ANALOG IC DEVICE DATA

3

MC33033

ELECTRICAL CHARACTERISTICS

Characteristic

OSCILLATOR SECTION

Oscillator Frequency f
Frequency Change with Voltage (VCC = 10 V to 30 V) ∆f
Sawtooth Peak Voltage V
Sawtooth Valley Voltage V

LOGIC INPUTS

Input Threshold Voltage (Pins 3, 4, 5, 6, 18, 19)

High State
Low State

Sensor Inputs (Pins 4, 5, 6)

High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)

Forward/Reverse, 60°/120° Select and Output Enable
(Pins 3, 18, 19)

High State Input Current (VIH = 5.0 V)
Low State Input Current (VIL = 0 V)

CURRENT–LIMIT COMPARATOR

Threshold Voltage V
Input Common Mode Voltage Range V

Input Bias Current I

OUTPUTS AND POWER SECTIONS

Top Drive Output Sink Saturation (I
Top Drive Output Off–State Leakage (VCE = 30 V) I
Top Drive Output Switching Time (CL = 47 pF, RL = 1.0 k)

Rise Time
Fall Time

Bottom Drive Output Voltage

High State (VCC = 30 V, I
Low State (VCC = 30 V, I

Bottom Drive Output Switching Time (CL = 1000 pF)

Rise Time
Fall Time

Under Voltage Lockout

Drive Output Enabled (VCC Increasing)
Hysteresis

Power Supply Current I

source

sink

= 50 mA)

(continued) (VCC = 20 V, RT = 4.7 k, CT = 10 nF, TA = 25°C, unless otherwise noted.)

= 25 mA) V

Sink

DRV(leak)

= 50 mA)

Symbol Min Typ Max Unit

OSC

/∆V – 0.01 5.0 %

OSC
OSC(P)
OSC(V)

V

IH

V

IL

I

IH

I

IL

I

IH

I

IL

th

ICR

IB

CE(sat)

t

r

t

f

V

OH

V

OL

t

r

t

f

V

th(on)

V

H

CC

22 25 28 kHz

– 4.1 4.5 V

1.2 1.5 – V

3.0
–

–150
–600

–75

–300

85 101 115 mV

– 3.0 – V
– –0.9 –5.0 µA

– 0.5 1.5 V
– 0.06 100 µA

–
–

(VCC – 2.0)–(VCC – 1.1)

–
–

8.2

0.1
– 15 22 mA

2.2

1.7

–70

–337

–36

–175

107

26

1.5

38
30

8.9

0.2

–

0.8

–20

–150

–10
–75

300
300

–

2.0

200
200

10

0.3

V

µA

µA

ns

V

ns

V

4

MOTOROLA ANALOG IC DEVICE DATA

MC33033

Figure 1. Oscillator Frequency versus

100

10

OSCILLA TOR FREQUENCY (kHz)

CT = 100 nF

,

OSC

f

0

1.0

Figure 3. Error Amp Open Loop Gain and

56
48
40
32

24
16

VCC = 20 V

8.0

VO = 3.0 V
RL = 15 k

0

CL = 100 pF

–8.0

, OPEN–LOOP VOLTAGE GAIN (dB)

TA = 25

–16

VOL

A

–24

1.0 k

Timing Resistor

CT = 10 nF

RT, TIMING RESISTOR (kΩ)

Phase versus Frequency

Gain

°

C

f, FREQUENCY (Hz)

VCC = 20 V

TA = 25

CT = 1.0 nF

Phase

Figure 2. Oscillator Frequency Change

versus T emperature

4.0

°

C

100010010

2.0

0

–2.0

OSCILLA T OR FREQUENCY CHANGE (%)

,

OSC

–4.0

f

∆

–55

VCC = 20 V
RT = 4.7 k

CT = 10 nF

TA, AMBIENT TEMPERATURE (°C)

125

1007550250–25

Figure 4. Error Amp Output Saturation

V oltage versus Load Current

40
60
80
100

120
140
160
180

EXCESS PHASE (DEGREES)

,

200

φ

220
240

10M1.0 M100 k10 k

– 0.8

–1.6

, OUTPUT SA TURATION VOLTAGE (V)

sat

V

1.6

0.8

0

0

V

ref

Source Saturation

(Load to Ground)

Sink Saturation

Gnd

1.0 2.0
IO, OUTPUT LOAD CURRENT (mA)

(Load to V

ref

VCC = 20 V

TA = 25

)

°

C

5.04.03.00

Figure 5. Error Amp Small–Signal

Transient Response

3.05

3.0

, OUTPUT VOL TAGE (V)

O

V

2.95

µ

s/DIV

1.0

MOTOROLA ANALOG IC DEVICE DATA

AV = +1.0

No Load

°

TA = 25

Figure 6. Error Amp Large–Signal

Transient Response

AV = +1.0

No Load
TA = 25

°

C

, OUTPUT VOL TAGE (V)
V

O

4.5

3.0

1.5

5.0 µs/DIV

C

5

MC33033

Figure 7. Reference Output V oltage Change

versus Output Source Current

0

–4.0

–8.0

– 12

– 16

0

VCC = 20 V

°

C

TA = 25

I

, REFERENCE OUTPUT SOURCE CURRENT (mA)

ref

–20

REFERENCE OUTPUT VOL TAGE CHANGE (mV)

–24

ref,

V

∆

Figure 9. Reference Output Voltage

versus T emperature

40

20

0

–20

–40

NORMALIZED REFERENCE VOLTAGE CHANGE (mV)

ref,

V

∆

–25

–55 0

TA, AMBIENT TEMPERATURE (

°

C)

VCC = 20 V

No Load

Figure 8. Reference Output V oltage versus

Supply V oltage

7.0

6.0

5.0

4.0

3.0

2.0

REFERENCE OUTPUT VOLTAGE (V)

1.0

ref,

V

0

605040302010

0

VCC, SUPPLY VOLTAGE (V)

No Load
TA = 25

°

C

40302010

Figure 10. Output Duty Cycle versus

PWM Input Voltage

100

80

60

40

20

OUTPUT DUTY CYCLE (%)

125100755025

0

0

VCC = 20 V

RT = 4.7 k

CT = 10 nF

°

C

TA = 25

PWM INPUT VOLTAGE (V)

5.04.03.02.01.0

Figure 11. Bottom Drive Response T ime versus

Current Sense Input Voltage

250

200

150

100

50

, BOTTOM DRIVE RESPONSE TIME (ns)

HL

t

0

1.0 2.0 3.0 4.0 5.0 7.0 8.0 10
V

, CURRENT SENSE INPUT VOLTAGE (NORMALIZED TO Vth)

Sense

VCC = 20 V
RL =
CL = 1.0 nF
TA = 25

6.0 9.0

6

Figure 12. Top Drive Output Saturation Voltage

versus Sink Current

1.2
VCC = 20 V

°

C

1

, OUTPUT SA TURATION VOLTAGE (V)V

sat

0.8

0.4

0

°

C

TA = 25

040302010

I

, SINK CURRENT (mA)

Sink

MOTOROLA ANALOG IC DEVICE DATA

MC33033

OUTPUT VOLTAGE (%)

Figure 13. Top Drive Output Waveform

100

VCC = 20 V

RL = 1.0 k

0

CL = 15 pF

°

C

TA = 25

50 ns/DIV

Figure 15. Bottom Drive Output Waveform

VCC = 20 V
CL = 15 pF

°

C

TA = 25

100

OUTPUT VOLTAGE (%)

Figure 14. Bottom Drive Output Waveform

100

0

50 ns/DIV

Figure 16. Bottom Drive Output Saturation

V oltage versus Load Current

–1.0

–2.0

0

VCC = 20 V

TA = 25

V

CC

°

C

VCC = 20 V
CL = 1.0 nF

°

C

TA = 25

Source Saturation

(Load to Ground)

OUTPUT VOLTAGE (%)

2.0

0

50 ns/DIV

, OUTPUT SA TURATION VOLTAGE (V)
V

sat

1.0
Gnd

0

0

IO, OUTPUT LOAD CURRENT (mA)

40

Sink Saturation

(Load to VCC)

806020

Figure 17. Supply Current versus V oltage

20
18
16
14
12

8.0

6.0

4.0

, POWER SUPPLY CURRENT (mA)

CC

2.0

I

10

0

0

VCC, SUPPLY VOLTAGE (V)

RT = 4.7 k
CT = 10 nF

Pins 3–6, 12, 13 = Gnd

Pins 18, 19 = Open

°

C

TA = 25

30252015105.0

MOTOROLA ANALOG IC DEVICE DATA

7

MC33033

PIN FUNCTION DESCRIPTION

Pin Symbol Description

1, 2, 20 BT, AT, C

3 Fwd//Rev The Forward/Reverse Input is used to change the direction of motor rotation.

4, 5, 6 SA, SB, S

7 Reference Output This output provides charging current for the oscillator timing capacitor CT and a

8 Oscillator The Oscillator frequency is programmed by the values selected for the timing

9 Error Amp Noninverting Input This input is normally connected to the speed set potentiometer.
10 Error Amp Inverting Input This input is normally connected to the Error Amp Output in open loop applications.
11 Error Amp Out/PWM Input This pin is available for compensation in closed loop applications.
12 Current Sense Noninverting Input A 100 mV signal, with respect to Pin 13, at this input terminates output switch conduction

13 Gnd This pin supplies a separate ground return for the control circuit and should be

14 V

15, 16, 17 CB, BB, A

18 60°/120° Select The electrical state of this pin configures the control circuit operation for either 60°

19 Output Enable A logic high at this input causes the motor to run, while a low causes it to coast.

T

C

CC

B

These three open collector Top Drive Outputs are designed to drive the external upper
power switch transistors.

These three Sensor Inputs control the commutation sequence.

reference for the Error Amplifier . It may also serve to furnish sensor power.

components, RT and CT.

during a given oscillator cycle. This pin normally connects to the top side of the current
sense resistor.

referenced back to the power source ground.
This pin is the positive supply of the control IC. The controller is functional over a V

range of 10 to 30 V .
These three totem pole Bottom Drive Outputs are designed for direct drive of the external

bottom power switch transistors.

(high state) or 120° (low state) sensor electrical phasing inputs.

CC

8

MOTOROLA ANALOG IC DEVICE DATA