L6219DS
V
BB
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
OUT
1A
OUT
2A
SENSE
2
COMP IN
2
OUT
2B
GROUND
GROUND
I
02
I
12
PHASE
2
V
REF 2
RC
2
1
2
3
2
4
5
6
7
8
1
24
23
22
21
20
19
18
17
LOAD
SUPPLY
SENSE
1
COMP IN
1
OUT
1B
I
01
GROUND
GROUND
I
11
PHASE
1
V
REF 1
RC
1
LOGIC
SUPPLY
The L6219DS motor driver is 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 deter-
mined by the user鈥檚 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 L6219DS is supplied in a 24-lead surface-mountable SOIC. Its
batwing construction provides for maximum package power dissipation
in the smallest possible construction. This device is also available on
special order for operation from -40擄C to +85擄C or to +105擄C.
Data Sheet
29319.43
PWM 1
9
9
10
11
12
胃
2
胃
1
16
15
14
PWM 2
V
CC
13
Dwg. PP-005-3
ABSOLUTE MAXIMUM RATINGS
at T
J
鈮?/div>
150
擄
C
Motor Supply Voltage, V
BB
....................
45 V
Output Current, I
OUT
(Peak) ........................................
+1.0 A
(Continuous) ..........................
+750 mA
Logic Supply Voltage, V
CC
...................
7.0 V
Logic Input Voltage Range,
V
IN
...............................
-0.3 V to +7.0 V
Output Emitter Voltage, V
SENSE
............
1.5 V
Package Power Dissipation,
P
D ........................................................
See Graph
Operating Temperature Range,
T
A
.................................
-20
擄
C to +85
擄
C
Storage Temperature Range,
T
S
...............................
-55
擄
C to +150
擄
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擄C.
FEATURES
I
Interchangeable with SGS L6219DS
I
750 mA Continuous Output Current
I
45 V Output Sustaining Voltage
I
Internal Clamp Diodes
I
Internal PWM Current Control
I
Low Output Saturation Voltage
I
Internal Thermal Shutdown Circuitry
I
Similar to Dual PBL3717, UC3770
Always order by complete part number, e.g.,
L6219DS
.
ALLEGRO
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