SLA7024M Allegro Microsystems Inc, SLA7024M Datasheet
SLA7024M
Specifications of SLA7024M
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SLA7024M Summary of contents
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... V BB FET Output Voltage 100 V DS Control Supply Voltage Peak Output Current 100 s) OUTM w SLA7024M . . . . . . . . . . . . . . . . . . . . . 3.0 A SLA7026M . . . . . . . . . . . . . . . . . . . . . 5.0 A SMA7029M . . . . . . . . . . . . . . . . . . . . 3.0 A Continuous Output Current, I OUT SLA7024M . . . . . . . . . . . . . . . . . . . . . 1.5 A SLA7026M . . . . . . . . . . . . . . . . . . . . . 3.0 A SMA7029M . . . . . . . . . . . . . . . . . . . . 1.5 A Input Voltage Range -0 7 Reference Voltage 2.0 V REF ...
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... SLA7024M, SLA7026M, HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS SLA7024M and SLA7026M FUNCTIONAL BLOCK DIAGRAM CONTROL SUPPLY REG OFF-TIME DELAY Note that channels A and B are electrically isolated. SMA7029M FUNCTIONAL BLOCK DIAGRAM CONTROL SUPPLY REG OFF-TIME DELAY Note that except for the control supply, channels A and B are electrically isolated. ...
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... NOTE: Negative current is defined as coming out of (sourcing) the specified device pin. SMA7029M AND CONTROL/LOGIC 125 150 Dwg. GK-018 = + Test Conditions V = 100 (SLA7024M & SMA7029M (SLA7026M OUT (SLA7024M & SMA7029M (SLA7026M OUT (SLA7024M & SMA7029M) I OUT (SLA7026M –3 A OUT Operating 2 0 SLA7024M and SLA7026M CONTROL/LOGIC Min Typ — ...
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... SLA7024M and SLA7026M Sequence Input Input Input Input Output HALF-STEP OPERATION (2-1-2 SEQUENCE) for SLA7024M, SLA7026M, and SMA7029M Sequence Input A Input Input B Input Output(s) ON *Logic signals to external open-collector inverter connected to t SMA7029M AND (Half of Each Device Shown) SLA7024M and SLA7026M REG. V REF ...
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... SLA7024M, SLA7026M, HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS CHANNEL A 2 OPEN-COLLECTOR INVERTER WAVE DRIVE (FULL STEP) for SMA7029M Sequence 0 1 Input Input tdA Input Input tdB Output *Logic signals to external open-collector inverter connected to t SMA7029M AND TYPICAL STEPPER MOTOR APPLICATIONS (Half of Device Shown) ...
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... SLA7024M, SLA7026M, HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS SMA7029M AND APPLICATIONS INFORMATION REGULATING THE PWM OUTPUT CURRENT The output current (and motor coil current) waveform is illustrated in Figure 1. Setting the PWM current trip point requires various external components Reference supply (typically 5 V) ...
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... SMA7029M AND For given values output current as a function of current-sensing resistance (R 3.0 SLA7026M MAX. 2.5 2.0 1.5 SLA7024M & SMA7029M MAX. 1.0 0 0.5 1.0 CURRENT-SENSING RESISTANCE in OHMS FIGURE 3. CURRENT-SENSING RESISTANCE Reduced/Holding Current Mode Additional circuitry (Figure 4) enables reducing motor current. The external transistor changes the voltage-divider ratio, V output current ...
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... SMA7029M AND For given values and illustrate output holding current as a function of R sensing resistance ( 1.0 0.8 0.6 0.4 0 100 HOLDING-CURRENT RESISTANCE in OHMS FIGURE 5A. HOLD-CURRENT RESISTANCE (SLA7024M and SMA7029M) 3 510 1 2 100 2.0 1.5 1.0 0 100 200 HOLDING-CURRENT RESISTANCE in OHMS FIGURE 5B. HOLD-CURRENT RESISTANCE (SLA7026M) NOTE: Holding current determines holding torque, which is normally greater than running torque ...
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... SLA7024M, SLA7026M, HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS SMA7029M AND DETERMINING THE MOTOR PWM FREQUENCY The modules function asynchronously, with PWM OFF time fixed by R and C at input t . The OFF time can be calculated as • C • log OFF Recommended circuit constants and t ...
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... AND PACKAGE RATINGS/DERATING FACTORS Thermal ratings/deratings for the multi-chip module packages vary slightly. Normally, the SLA7024M and SMA7029M do not need heat sinking when operated within maximum specified output current ( 1.0 A with 2-phase drive) unless the design ambient temperature also ex- ceeds +60 C. Thermal calculations must also consider the temperature effects on the output FET ON resistance ...
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... Recommended mounting hardware torque: 4.34 – 5.79 lbf•ft (6 – 8 kgf•cm or 0.588 – 0.784 Nm). 3. The hatched area is exposed (electrically isolated) heat spreader. 4. Recommend use of metal-oxide-filled, alkyl-degenerated oil base, silicone grease (Dow Corning 340 or equivalent). SMA7029M AND SLA7024M and SLA7026M Dimensions in Inches (for reference only) 0.126 1.22 ...
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... SLA7024M, SLA7026M, HIGH-CURRENT PWM, UNIPOLAR STEPPER MOTOR CONTROLLER/DRIVERS The products described here are manufactured in Japan by Sanken Electric Co., Ltd. for sale by Allegro MicroSystems, Inc. Sanken Electric Co., Ltd. and Allegro MicroSystems, Inc. reserve the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the design of their products ...