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L6219DS-T View Datasheet(PDF) - Allegro MicroSystems

Part Name
Description
Manufacturer
L6219DS-T
Allegro
Allegro MicroSystems Allegro
L6219DS-T Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
L6219DS
OUT 1A 1
OUT 2A 2
SENSE 2 3
2
COMP IN 2 4
OUT 2B 5
GROUND 6
GROUND 7
I 02 8
I 12
PHASE 2
99
10 θ2
V REF 2 11
RC 2 12
VBB
24
LOAD
SUPPLY
23 SENSE 1
1
22 COMP IN 1
21 OUT 1B
20 I 01
19 GROUND
18 GROUND
17
θ1 16
I 11
PHASE 1
15 V REF 1
14
VCC 13
RC 1
LOGIC
SUPPLY
Dwg. PP-005-3
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 +7.0 V
Output Emitter Voltage, VSENSE ............ 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.
DUAL FULL-BRIDGE
PWM MOTOR DRIVER
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’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 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°C to +85°C or to +105°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 .
 

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