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
—