DUAL FULL-BRIDGE PWM MOTOR DRIVER

-0.3 V to V. CC. +0.3 V. Output Emitter Voltage ..... 5.33. MAX. 1.77. 1.15. 0.39. MIN. 0.558. 0.356. 2.54. BSC. 0.13. MIN. 3.81. 2.93. 13. 32.51. 31.24. NOTE 1. 6. 7 ...
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Data Sheet 29319.20G

2916

DUAL FULL-BRIDGE PWM MOTOR DRIVER UDN2916B (DIP) OUT 1A

1

OUT 2A

2

VBB

1

24

LOAD S UP P LY

23

E1

22

S E NS E 1

21

OUT 1B

E2

3

S E NS E 2

4

OUT 2B

5

20

I 01

G R OUND

6

19

G R OUND

G R OUND

7

18

G R OUND

I 02

8

17

I 11

I 12

99

16

P HAS E 1

P HAS E 2

10

15

V REF 1

V REF 2

11

14

RC 1

RC 2

12

13

LOG IC S UP P LY

θ2

P WM 1

P WM 2

2

θ1

V CC

Dwg. P P -005

ABSOLUTE MAXIMUM RATINGS at TJ ≤ 150°C

Motor Supply Voltage, VBB .................... 45 V Output Current, IOUT (Peak) ........................................ +1.0 A (Continuous) .......................... +750 mA Logic Supply Voltage, VCC ................... 7.0 V Logic Input Voltage Range, VIN ......................... -0.3 V to VCC+0.3 V Output Emitter Voltage, VE .................. 1.5 V Package Power Dissipation, PD ........................................................ See Graph Operating Temperature Range, TA ................................. -20°C to +85°C Storage Temperature Range, TS ............................... -55°C to +150°C Output current rating may be limited by duty cycle, ambient temperature, and heat sinking. Under any set of conditions, do not exceed the specified peak current rating or a junction temperature of +150°C.

The UDN2916B, UDN2916EB, and UDN2916LB motor drivers are designed to drive both windings of a bipolar stepper motor or bidirectionally control two dc motors. Both bridges are capable of sustaining 45 V and include internal pulse-width modulation (PWM) control of the output current to 750 mA. The outputs have been optimized for a low output saturation voltage drop (less than 1.8 V total source plus sink at 500 mA). For PWM current control, the maximum output current is determined by the user’s selection of a reference voltage and sensing resistor. Two logic-level inputs select output current limits of 0, 33, 67, or 100% of the maximum level. A PHASE input to each bridge determines load current direction. The bridges include both ground clamp and flyback diodes for protection against inductive transients. Internally generated delays prevent cross-over currents when switching current direction. Special power-up sequencing is not required. Thermal protection circuitry disables the outputs if the chip temperature exceeds safe operating limits. The UDN2916B is supplied in a 24-pin dual in-line plastic batwing package with a copper lead-frame and heat sinkable tabs for improved power dissipation capabilities. The UDN2916EB is supplied in a 44-lead power PLCC for surface mount applications. The UDN2916LB is supplied in a 24-lead surface-mountable SOIC. Their batwing construction provides for maximum package power dissipation in the smallest possible construction. The UDN2916B/EB/LB are available for operation from -40°C to +85°C. To order, change the prefix from 'UDN' to 'UDQ'. These devices are also available on special order for operation to +105°C. The B and LB packages are available in a lead (Pb) free version, with 100% matte tin leadframe.

FEATURES ■ 750 mA Continuous Output Current ■ 45 V Output Sustaining Voltage ■ Internal Clamp Diodes ■ Internal PWM Current Control ■ Low Output Saturation Voltage ■ Internal Thermal Shutdown Circuitry ■ Similar to Dual PBL3717, UC3770 Always order by complete part number: Part Number Package UDN2916B 24-Pin DIP UDN2916B-T 24-Pin DIP, Lead-free UDN2916EB 44-Lead PLCC UDN2916LB 24-Lead SOIC UDN2916LB-T 24-Lead SOIC, Lead-free

2916 DUAL FULL-BRIDGE MOTOR DRIVER

39

7 PWM 1

8

37

1

10

36

11

35

12

34

13

33 2

14

32

15

31

16

30

PWM 2

17

29

26

27

28

PHASE 2

V REF 2

RC 2

I12 25

I02 24

OUT 2B 23

21 SENSE 2

E2 20

OUT 2A 18

GND

θ2

NC NO CONNECTION 22

NC NO CONNECTION 19

GND

38

VBB

9

GND

VCC

ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS

41

θ1 GND

LOGIC SUPPLY

VREF 1

RC1

42

40

I11

PHASE 1 43

I01

LOAD SUPPLY 2

1

OUT 1B 3

44

SENSE 1 4

1

OUT 1A

E

6

5

UDN2916EB (PLCC)

1

I 12

2

PHASE 2

3

V REF 2

θ2

24

LOAD SUPPLY

23

OUT 2B SENSE 2

4

21

E2

RC 2

5

20

OUT 2A

GROUND

6

19

GROUND

LOGIC SUPPLY

8

RC 1

99

V REF 1

10

PHASE 1

11

I 11

12

θJA

= 30°C/W

SUFFIX 'B', R

θJA

= 40°C/W

3

2

1 SUFFIX 'LB', R θJA = 77°C/W

0 25

50

75 100 TEMPERATURE IN ° C

125

150

VBB

VBB

'B' PACKAGE, CHANNEL 1 PIN NUMBERS SHOWN.

24

OUT B 1

21

OUT A

2

7

SUFFIX 'EB', R

PWM CURRENT-CONTROL CIRCUITRY

22

GROUND

4

Dwg. PP-006A

PWM 2

02

RθJT = 6.0°C/W

Dwg. GP-035B

UDN2916LB (SOIC)

I

5

V REF 15 23

20 kΩ ÷10

SENSE – 22

40 kΩ 18

V CC

OUT 1A

16

E1

15

SENSE 1

14

OUT 1B

13

I 01

I 0 20

ONE SHOT

+

RC

10 kΩ

GROUND

17

E

14

SOURCE DISABLE

RC

CC

RS

RT

I 1 17

CT

θ1

PWM 1

1 Dwg. EP-007B

Dwg. PP-047

2

TRUTH TABLE PHASE

OUTA

OUTB

H L

H L

L H

115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 Copyright © 1994, 2003 Allegro MicroSystems, Inc.

2916 DUAL FULL-BRIDGE MOTOR DRIVER ELECTRICAL CHARACTERISTICS at TA = +25°C, TJ ≤ 150°C, VBB = 45 V, VCC = 4.75 V to 5.25 V, VREF = 5.0 V (unless otherwise noted). Limits Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

10

—

45

V

VOUT = VBB

—

< 1.0

50

µA

VOUT = 0

—