Allegro UDN2916LB, UDN2916EB, UDN2916B Datasheet
UDN2916B
OUT
OUT
SENSE
OUT
GROUND
GROUND
I
I
PHASE
V
REF 2
RC
1
1A
2
2A
3
E
2
2
4
2
5
2B
6
7
8
02
9
9
12
10
θ
2
2
2
PWM 2
11
12
BB
1
PWM 1
θ
V
CC
LOAD
24
SUPPLY
E
23
1
SENSE
22
21
OUT
1B
20
I
01
GROUND
19
18
GROUND
17
I
11
16
PHASE
1
15
V
REF 1
14
RC
1
LOGIC
13
SUPPLY
Dwg. PP-005
V
ABSOLUTE MAXIMUM RATINGS
at T
150°C
J ≤
Motor Supply Voltage, VBB.................... 45 V
Output Current, I
(Peak) ........................................ +1.0 A
(Continuous) .......................... +750 mA
Logic Supply Voltage, V
Logic Input Voltage Range,
V
............................... -0.3 V to +7.0 V
IN
Output Emitter Voltage, V
Package Power Dissipation,
P
........................................................ See Graph
D
Operating Temperature Range,
T
................................. -20°C to +85°C
A
Storage Temperature Range,
T
............................... -55°C to +150°C
S
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.
OUT
................... 7.0 V
CC
................... 1.5 V
E
Data Sheet
29319.20C
2916
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
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
1
1
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 44lead 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.
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
UDN2916EB 44-Lead PLCC
UDN2916LB 24-Lead SOIC
2916
DUAL FULL-BRIDGE
MOTOR DRIVER
UDN2916EB
1
1A
OUT
6
GND
7
8
9
10
11
12
13
14
15
16
GND
17 29
NC NC
18
2A
OUT
1B
1
OUT
E
SENSE
3
4
5
1
2
19
21
20
2
2
E
SENSE
NO CONNECTION
LOAD SUPPLY
2
BB
V
22
NO CONNECTION
1
23
OUT
1
REF 1
11
01
I
2B
I
44
24
02
I
PWM 1
PHASE
43
θ
1
25
12
I
PWM 2
θ
V
42
2
26
2
PHASE
UDN2916LB
RC
41
27
REF 2
V
1
V
LOGIC SUPPLY
40
CC
39
38
37
36
35
34
33
32
31
30
28
2
RC
Dwg. PP-006A
GND
GND
5
R = 6.0°C/W
θJT
4
SUFFIX 'EB', R = 30°C/W
θJA
SUFFIX 'B', R = 40°C/W
θJA
3
2
1
SUFFIX 'LB', R = 55°C/W
θJA
0
25
ALLOWABLE PACKAGE POWER DISSIPATION IN WATTS
50 75 100 125 150
TEMPERATURE IN °C
Dwg. GP-035A
PWM CURRENT-CONTROL CIRCUITRY
I
I
PHASE
V
REF 2
RC
GROUND
GROUND
LOGIC SUPPLY
RC
V
REF 1
PHASE
I
'B' PACKAGE,
CHANNEL 1
PIN NUMBERS
1
02
2
12
3
2
PWM 2
θ
2
4
5
2
6
BB
7
8
V
9
9
1
V
CC
10
11
θ
1
1
12
11
PWM 1
24
LOAD SUPPLY
OUT
23
2B
SENSE
22
2
21
20
19
18
17
16
1
15
14
13
E
2
OUT
2A
GROUND
GROUND
OUT
1A
E
1
SENSE
OUT
1B
I
01
Dwg. PP-047
2
1
SHOWN.
20
I
0
17
I
1
V
REF
40 kΩ
15
20 kΩ
10 kΩ
PHASE OUT
HHL
LLH
V
BB
24
OUT
B
21
23
E
SENSE
22
R
C
÷10
1
OUT
A
R
S
TRUTH TABLE
A
R
T
OUT
SHOT
B
ONE
14
RC
C
T
SOURCE
DISABLE
Dwg. EP-007B
–
+
C
C
115 Northeast Cutoff, Box 15036
W
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1994, 1998 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,
V
= 5.0 V (unless otherwise noted).
REF
Limits
Characteristic Symbol Test Conditions Min. Typ. Max. Units
Output Drivers (OUT
or OUTB)
A
Motor Supply Range V
Output Leakage Current I
Output Sustaining Voltage V
Output Saturation Voltage V
CE(sus)
CE(SAT)
Clamp Diode Leakage Current I
Clamp Diode Forward Voltage V
Driver Supply Current I
BB(ON)
I
BB(OFF)
Control Logic
Input Voltage V
V
Input Current I
Reference Voltage Range V
Current Limit Threshold V
(at trip point)
REF/VSENSE
BB
CEX
R
IN(1)
IN(0)
IN(1)
REF
10 — 45 V
V
= V
OUT
V
OUT
I
OUT
Sink Driver, I
Sink Driver, I
Source Driver, I
Source Driver, I
BB
= 0 — <-1.0 -50 µA
= ±750 mA, L = 3.0 mH 45 —— V
= +500 mA — 0.4 0.6 V
OUT
= +750 mA — 1.0 1.2 V
OUT
= -500 mA — 1.0 1.2 V
OUT
= -750 mA — 1.3 1.5 V
OUT
— < 1.0 50 µA
VR = 45 V — < 1.0 50 µA
F
IF = 750 mA — 1.6 2.0 V
Both Bridges ON, No Load — 20 25 mA
Both Bridges OFF — 5.0 10 mA
All inputs 2.4 —— V
All inputs ——0.8 V
VIN = 2.4 V — <1.0 20 µA
= 0.8 V — - 3.0 -200 µA
V
IN
Operating 1.5 — 7.5 V
I0 = I1 = 0.8 V 9.5 10 10.5 —
= 2.4 V, I1 = 0.8 V 13.5 15 16.5 —
I
0
I0 = 0.8 V, I1 = 2.4 V 25.5 30 34.5 —
Thermal Shutdown Temperature T
Total Logic Supply Current I
CC(ON)
I
CC(OFF)
J
— 170 — °C
I0 = I1 = 0.8 V, No Load — 40 50 mA
I0 = I1 = 2.4 V, No Load — 10 12 mA
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