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5804

BiMOS II UNIPOLAR

STEPPER-MOTOR TRANSLATOR/DRIVER

OUTPUT

B

1

2

3

4

LOGIC

GROUND

OUTPUT

5

6

7

8

12

11

10

9

GROUND

STEP INPUT

HALF-STEP

ONE-PHASE

V

DD

OE

16

15

14

13

SUPPLY

OUTPUT

ENABLE

DIRECTION

GROUND

K

BD

OUTPUT

D

GROUND

Combining low-power CMOS logic with high-current and high-voltage

bipolar outputs, the UCN5804B and UCN5804LB BiMOS II translator/

drivers provide complete control and drive for a four-phase unipolar stepper-

motor with continuous output current ratings to 1.25 A per phase (1.5 A

startup) and 35 V.

The CMOS logic section provides the sequencing logic, DIRECTION

and OUTPUT ENABLE control, and a power-on reset function. Three

stepper-motor drive formats, wave-drive (one-phase), two-phase, and half-

step are externally selectable. The inputs are compatible with standard

CMOS, PMOS, and NMOS circuits. TTL or LSTTL may require the use of

appropriate pull-up resistors to ensure a proper input-logic high.

The wave-drive format consists of energizing one motor phase at a time

in an A-B-C-D (or D-C-B-A) sequence. This excitation mode consumes the

least power and assures positional accuracy regardless of any winding

inbalance in the motor. Two-phase drive energizes two adjacent phases in

each detent position (AB-BC-CD-DA). This sequence mode offers an

improved torque-speed product, greater detent torque, and is less susceptible

to motor resonance. Half-step excitation alternates between the one-phase

and two-phase modes (A-AB-B-BC-C-CD-D-DA), providing an eight-step

sequence.

The bipolar outputs are capable of sinking up to 1.5 A and withstanding

50 V in the off state (sustaining voltages up to 35 V). Ground-clamp and

flyback diodes provide protection against inductive transients. Thermal

protection circuitry disables the outputs when the chip temperature is exces-

sive.

Both devices are rated for operation over the temperature range of -20°C

to +85°C. The UCN5804B is supplied in a 16-pin dual in-line plastic batwing

package with a copper lead frame and heat-sinkable tabs for improved power

dissipation capabilities; the UCN5804LB is supplied in a 16-lead plastic

SOIC batwing package with a copper lead frame and heat-sinkable tabs.

Data Sheet

26184.12C*

C

K

AC

OUTPUT

A

Dwg. W-194

Note that the UCN5804B (dual in-line package)

and UCN5804LB (small outline IC package) are

electrically identical and share a common

terminal number assignment.

ABSOLUTE MAXIMUM RATINGS

Output Voltage, V

CE

...............................50 V

Output Sustaining Voltage,

V

CE (sus)

............................................35 V

Output Sink Current, I

OUT

....................1.5 A

Logic Supply Voltage, V

DD

....................7.0 V

Input Voltage, V

IN

..................................7.0 V

Package Power Dissipation,

P

D

.........................................See Graph

Operating Temperature Range,

T

A

..................................-20

°

C to +85

°

C

Storage Temperature Range,

T

S

................................-55

°

C to +150

°

C

FEATURES

I 1.5 A Maximum Output Current

I 35 V Output Sustaining Voltage

I Wave-Drive, Two-Phase, and Half-Step Drive Formats

I Internal Clamp Diodes

I Output Enable and Direction Control

I Power-On Reset

I Internal Thermal Shutdown Circuitry

Always order by complete part number, e.g., UCN5804B.

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

TYPICAL INPUT CIRCUIT

V

DD

A

L

L

O

W

A

B

L

E

P

A

C

K

A

G

E

P

O

W

E

R

D

I

S

S

I

P

A

T

I

O

N

I

N

W

A

T

T

S

5

R = 6.0°C/W

θJT

4

IN

3

2

SUFFIX 'B', R = 43°C/W

θJA

Dwg. EP-010-5

1

SUFFIX 'LB', R = 63°C/W

θJA

TYPICAL OUTPUT DRIVER

0

255075100

TEMPERATURE IN °C

125150

K

Dwg. GP-049-2A

OUT

TRUTH TABLE

Dwg. EP-021-4

Drive Format

Two-Phase

One-Phase

Half-Step

Step-Inhibit

Pin 9

L

H

L

H

Pin 10

L

L

H

H

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

Copyright © 1987, 2000 Allegro MicroSystems, Inc.

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

ELECTRICAL CHARACTERISTICS at T

A

= 25

°

C, T

J

≤

150

°

C, V

DD

= 4.5 V to 5.5 V

(unless otherwise noted).

Characteristic

Output Leakage Current

Output Sustaining Voltage

Output Saturation Voltage

Symbol

I

CEX

V

CE(sus)

V

CE(SAT)

Test Conditions

V

OUT

= 50 V

I

OUT

= 1.25 A, L = 3 mH

I

OUT

= 700 mA

I

OUT

= 1 A

I

OUT

= 1.25 A

Clamp Diode Leakage Current

Clamp Diode Forward Voltage

Input Current

I

R

V

F

I

IN(1)

I

IN(0)

Input VoltageV

IN(1)

V

IN(0)

Supply Current

Turn-Off Delay

Turn-On Delay

Thermal Shutdown Temperature

I

DD

t

ON

t

OFF

T

J

2 Outputs ON

50% Step Inputs to 50% Output

50% Step Inputs to 50% Output

V

R

= 50 V

I

F

= 1.25 A

V

IN

= V

DD

V

IN

= 0.8 V

V

DD

= 5 V

Limits

.

—

35

—

—

—

—

—

—

—

3.5

-0.3

—

—

—

—

10

—

1.0

1.1

1.2

10

1.5

0.5

-0.5

—

—

20

—

—

165

50

—

1.2

1.4

1.5

50

3.0

5.0

-5.0

5.3

0.8

30

10

10

—

Units

µA

V

V

V

V

µA

V

µA

µA

V

V

mA

µs

µs

°C

TIMING CONDITIONS

CLOCK

ONE PHASE

HALF STEP

OOUTPUT ENABLE

OUTPUT A

OUTPUT B

OUTPUT C

OUTPUT D

OUTPUT

TWO -PHASE HALF-STEP WAVE DRIVE

DISABLED

Dwg. W-110A

C

A

B

A. Minimum Data Set Up Time. . . . . . . . . . . . . . . . . . . . . . . . 100 ns

B. Minimum Data Hold Time. . . . . . . . . . . . . . . . . . . . . . . . . . 100 ns

C. Minimum Step Input Pulse Width. . . . . . . . . . . . . . . . . . . . . 3.0

µ

s

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

APPLICATIONS INFORMATION

Internal power-on reset (POR) circuitry resets

OUTPUT

A

(and OUTPUT

D

in the two-phase

drive format) to the on state with initial applica-

tion of the logic supply voltage. After reset, the

circuit then steps according to the tables.

The outputs will advance one sequence

position on the high-to-low transition of the STEP

INPUT pulse. Logic levels on the HALF-STEP

and ONE-PHASE inputs will determine the drive

format (one-phase, two-phase, or half-step). The

DIRECTION pin determines the rotation se-

quence of the outputs. Note that the STEP

INPUT must be in the low state when changing

the state of ONE-PHASE, HALF-STEP, or

DIRECTION to prevent erroneous stepping.

All outputs are disabled (off) when OUTPUT

ENABLE is at a logic high. If the function is not

required, OUTPUT ENABLE should be tied low.

In that condition, all outputs depend only on the

state of the step logic.

During normal commutation of a unipolar

stepper motor, mutual coupling between the

motor windings can force the outputs of the

UCN5804B below ground. This condition will

cause forward biasing of the collector-to-substrate

junction and source current from the output. For

many L/R applications, this substrate current is

high enough to adversely affect the logic circuitry

and cause misstepping. External series diodes

(Schottky are recommended for increased

efficiency at low-voltage operation) will prevent

substrate current from being sourced through the

outputs. Alternatively, external ground clamp

diodes will provide a preferred current path from

ground when the outputs are pulled below ground.

Internal thermal protection circuitry disables

all outputs when the junction temperature reaches

approximately 165°C. The outputs are enabled

again when the junction cools down to approxi-

mately 145°C.

Step

POR

1

2

3

4

WAVE-DRIVE SEQUENCE

Half Step = L, One Phase = H

A

ON

ON

OFF

OFF

OFF

B

OFF

OFF

ON

OFF

OFF

C

OFF

OFF

OFF

ON

OFF

D

OFF

OFF

OFF

OFF

ON

TWO-PHASE DRIVE SEQUENCE

Half Step = L, One Phase = L

Step

POR

1

2

3

4

A

ON

ON

ON

OFF

OFF

B

OFF

OFF

ON

ON

OFF

C

OFF

OFF

OFF

ON

ON

D

ON

ON

OFF

OFF

ON

HALF-STEP DRIVE SEQUENCE

Half Step = H, One Phase = L

Step

POR

1

2

3

4

5

6

7

8

A

ON

ON

ON

OFF

OFF

OFF

OFF

OFF

ON

B

OFF

OFF

ON

ON

ON

OFF

OFF

OFF

OFF

C

OFF

OFF

OFF

OFF

ON

ON

ON

OFF

OFF

D

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

TYPICAL APPLICATION

L/R Stepper-Motor Drive

The products described here are manufactured under one or more

U.S. patents or U.S. patents pending.

Allegro MicroSystems, Inc. reserves the right to make, from time to

time, such departures from the detail specifications as may be

required to permit improvements in the performance, reliability, or

manufacturability of its products. Before placing an order, the user is

cautioned to verify that the information being relied upon is current.

Allegro products are not authorized for use as critical components

in life-support devices or systems without express written approval.

The information included herein is believed to be accurate and

reliable. However, Allegro MicroSystems, Inc. assumes no responsi-

bility for its use; nor for any infringement of patents or other rights of

third parties which may result from its use.

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

UCN5804B

Dimensions in Inches

(controlling dimensions)

16

NOTE 4

9

0.020

0.008

0.430

0.280

0.240

MAX

0.300

BSC

1

0.070

0.045

0.100

0.775

0.735

BSC

8

0.005

MIN

0.210

MAX

0.015

MIN

0.150

0.115

0.022

0.014

Dwg. MA-001-17A in

Dimensions in Millimeters

(for reference only)

16

NOTE 4

9

0.508

0.204

10.92

7.11

6.10

MAX

7.62

BSC

1

1.77

1.15

2.54

19.68

18.67

BSC

8

0.13

MIN

5.33

MAX

0.39

MIN

3.81

2.93

0.558

0.356

Dwg. MA-001-17A mm

NOTES:1.

2.

3.

4.

5.

Exact body and lead configuration at vendor’s option within limits shown.

Lead spacing tolerance is non-cumulative.

Lead thickness is measured at seating plane or below.

Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.

Supplied in standard sticks/tubes of 25 devices.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

UCN5804LB

(add “TR” to part number for tape and reel)

Dimensions in Inches

(for reference only)

169

0.0125

0.0091

0.2992

0.2914

0.419

0.394

0.050

0.016

0.020

0.013

12

3

0.4133

0.3977

0.050

BSC

0°

TO

8°

0.0926

0.1043

0.0040

MIN.

Dwg. MA-008-17A in

Dimensions in Millimeters

(controlling dimensions)

16

9

0.32

0.23

7.60

7.40

10.65

10.00

1.27

0.40

0.51

0.33

1

2

3

10.50

10.10

1.27

BSC

0°

TO

8°

2.65

2.35

0.10

MIN.

Dwg. MA-008-17A mm

NOTES:1.

2.

3.

4.

5.

Exact body and lead configuration at vendor’s option within limits shown.

Lead spacing tolerance is non-cumulative.

Lead thickness is measured at seating plane or below.

Webbed lead frame. Leads 4, 5, 12, and 13 are internally one piece.

Supplied in standard sticks/tubes of 47 devices or add “TR” to part number for tape and reel.

元器件交易网

5804

BiMOS II UNIPOLAR

STEPPER-MOTOR

TRANSLATOR/DRIVER

MOTOR DRIVERS

Output Ratings*Part Number

†

INTEGRATED CIRCUITS FOR BRUSHLESS DC MOTORS

3-Phase Power MOSFET Controller—28 V3933

3-Phase Power MOSFET Controller—50 V3932

3-Phase Power MOSFET Controller—50 V7600

2-Phase Hall-Effect Sensor/Driver400 mA26 V3626

Bidirectional 3-Phase Back-EMF Controller/Driver±600 mA14 V8906

2-Phase Hall-Effect Sensor/Driver900 mA14 V3625

3-Phase Back-EMF Controller/Driver±900 mA14 V8902–A

3-Phase Controller/Drivers±2.0 A45 V2936 & 2936-120

INTEGRATED BRIDGE DRIVERS FOR DC AND BIPOLAR STEPPER MOTORS

Dual Full Bridge with Protection & Diagnostics±500 mA30 V3976

PWM Current-Controlled Dual Full Bridge±650 mA30 V3966

PWM Current-Controlled Dual Full Bridge±650 mA30 V3968

PWM Current-Controlled Dual Full Bridge±750 mA45 V2916

PWM Current-Controlled Dual Full Bridge±750 mA45 V2919

PWM Current-Controlled Dual Full Bridge±750 mA45 V6219

PWM Current-Controlled Dual Full Bridge±800 mA33 V3964

PWM Current-Controlled Full Bridge±1.3 A50 V3953

PWM Current-Controlled Dual Full Bridge±1.5 A45 V2917

PWM Current-Controlled Microstepping Full Bridge±1.5 A50 V3955

PWM Current-Controlled Microstepping Full Bridge±1.5 A50 V3957

PWM Current-Controlled Dual DMOS Full Bridge±1.5 A50 V3972

Dual Full-Bridge Driver±2.0 A50 V2998

PWM Current-Controlled Full Bridge±2.0 A50 V3952

DMOS Full Bridge PWM Driver±2.0 A50 V3958

Dual DMOS Full Bridge±2.5 A50 V3971

UNIPOLAR STEPPER MOTOR & OTHER DRIVERS

Voice-Coil Motor Driver±500 mA6 V8932–A

Voice-Coil Motor Driver±800 mA16 V8958

Unipolar Stepper-Motor Quad Drivers1 A46 V7024 & 7029

Unipolar Microstepper-Motor Quad Driver1.2 A46 V7042

Unipolar Stepper-Motor Translator/Driver1.25 A50 V5804

Unipolar Stepper-Motor Quad Driver1.8 A50 V2540

Unipolar Stepper-Motor Quad Driver1.8 A50 V2544

Unipolar Stepper-Motor Quad Driver3 A46 V7026

Unipolar Microstepper-Motor Quad Driver3 A46 V7044

*Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits

or over-current protection voltage limits. Negative current is defined as coming out of (sourcing) the output.

†Complete part number includes additional characters to indicate operating temperature range and package style.

Also, see 3175, 3177, 3235, and 3275 Hall-effect sensors for use with brushless dc motors.

Function

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000