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SLA7071M 数据表(PDF) 1 Page - Allegro MicroSystems

部件名 SLA7071M
功能描述  Motor Driver IC Family
Download  12 Pages
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制造商  ALLEGRO [Allegro MicroSystems]
网页  http://www.allegromicro.com
标志 ALLEGRO - Allegro MicroSystems

SLA7071M 数据表(HTML) 1 Page - Allegro MicroSystems

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Sanken Power Devices
from Allegro MicroSystems
SLA7070M, SLA7071M,
SLA7072M, and SLA7073M
Motor Driver IC Family
The SLA7070M, SLA7071M, SLA7072M, and SLA7073M motor driver
ICs feature unipolar drivers. The clock-in type input interface allows simplified
control logic, and options for built-in sense current detection and load circuit
short or open protection (patent pending) provide lower loss, and lower thermal
resistance. All products in the SLA7070M series are pin-compatibile, support-
ing rapid design of application variants.
The built-in excitation distribution circuit (sequencer) allows motor control
using only the CLOCK signal for simple operations (rotate/stop), with motor
speed control by frequency input into CLOCK pin. This eliminates logic signal
lines required for conventional phase-input methods, and reduces demand on
heavily-used CPUs.
Contact Allegro® for application information and additional information on
device performance and logic.
Features
Power supply voltages, VBB: 46 V(max.), 10 to 44 V normal operating range
Logic supply voltages, VDD: 3.0 to 5.5 V
Maximum output currents: 1 A, 1.5 A, 2 A, 3 A
Built-in sequencer
Simplified clock-in stepping control
Both full/half-stepping
Built-in sense resistor, RSInt
All variants are pin-compatible for enhanced design flexibility
ZIP type 23-pin molded package (SLA package)
Self-excitation PWM current control with fixed off-time
Built-in synchronous rectifying circuit reduces losses at PWM off
Synchronous PWM chopping function prevents motor noise in Hold mode
Sleep mode for reducing the IC input current in stand-by state
Built-in protection circuitry against motor coil opens/shorts option available
FEATURES AND BENEFITS
ABSOLUTE MAXIMUM RATINGS
AT TA = 25°C
Load (Motor) Supply Voltage, VM .........46 V
Main Power Supply Voltage, VBB..........46 V
Logic Supply Voltage, VDD ...........................7 V
Output Current, IOUT
SLA7070M .................................1.0 A
SLA7071M .................................1.5 A
SLA7072M .................................2.0 A
SLA7073M .................................3.0 A
Logic Input Voltage, VIN
.............................. –0.3 to VDD+0.3 V
REF Input Voltage, VREF
............................................–0.3 to VDD+0.3 V
Sense Voltage, VSInt
tw < 1 μs is not considered.......... ±2 V
Power Dissipation, PD
Without heat sink ...................... 4.7 W
Junction Temperature, TJ.......................150°C
Ambient Temperature, TA.......–20 to 85°C
Storage Temperature, Tstg ...–30 to 150°C


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