A3952SW ALLEGRO [Allegro MicroSystems], A3952SW Datasheet
A3952SW
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A3952SW Summary of contents
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... Fast and Slow Current-Decay Modes Sleep (Low Current Consumption) Mode Internal Transient Suppression Diodes Under-Voltage Lockout Internal Thermal Shutdown Circuitry Crossover-Current Protection Always order by complete part number: Part Number A3952SB A3952SEB A3952SLB A3952SW 12-Pin Power-Tab SIP Package R JA 16-Pin DIP 43 C/W 28-Lead PLCC 42 C/W 16-Lead SOIC 67 C/W ...
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FULL-BRIDGE PWM MOTOR DRIVER SLEEP & STANDBY MODES MODE PHASE ENABLE BRAKE LOGIC V CC SUPPLY REF 1 GROUND 10 'B' , 'EB', & 'LB' TAB 8 6 'W' AMBIENT 4 'B' & 'EB' AMBIENT 'LB' ...
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FULL-BRIDGE PWM MOTOR DRIVER 5 GROUND LOGIC GROUND Characteristic Output Drivers Load Supply Voltage Range Output Leakage Current Output Saturation Voltage Clamp Diode Forward Voltage (Source or Sink) Load ...
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FULL-BRIDGE PWM MOTOR DRIVER Characteristic Control Logic Logic Supply Voltage Range Logic Input Voltage Logic Input Current Reference Voltage Range Reference Input Current Reference Voltage Divider Ratio Comparator Input Offset Voltage PWM RC Fixed OFF Time PWM Minimum ON ...
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FULL-BRIDGE PWM MOTOR DRIVER INTERNAL PWM CURRENT CONTROL DURING FORWARD AND REVERSE OPERATION The A3952S– contains a fixed OFF-time pulse-width modulated (PWM) current-control circuit that can be used to limit the load current to a desired value. The value ...
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FULL-BRIDGE PWM MOTOR DRIVER Brake Operation - MODE Input Low During braking, with the MODE input low, the peak current limit defaults internally to a value approximated 1.5 V/R TRIP In this mode, the value of ...
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FULL-BRIDGE PWM MOTOR DRIVER The following procedure can be used to evaluate the worst-case slow-decay internal PWM load current regula- tion in the system: Set volts. With the load connected and the PWM REF current control ...
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FULL-BRIDGE PWM MOTOR DRIVER imply that output short circuits are permitted. The hyster- esis of the thermal shutdown circuit is approximately the internal current-control circuitry is not used; the V terminal should be connected to V ...
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FULL-BRIDGE PWM MOTOR DRIVER PCB Layout The load supply terminal (>47 F electrolytic and 0.1 F ceramic capacitors are recommended) as close to the device as is physically practical. To minimize the effect of system ground I•R ...
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FULL-BRIDGE PWM MOTOR DRIVER motor is more linear than in the case of ENABLE PWM control (which produces a discontinuous current at low- current levels). With bidirectional dc servo motors, the PHASE termi- nal can be used for mechanical ...
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FULL-BRIDGE PWM MOTOR DRIVER 16 0.280 0.240 1 0.070 0.045 0.210 MAX 0.015 MIN 0.022 0.014 16 7.11 6.10 1 1.77 1.15 5.33 MAX 0.39 MIN 0.558 0.356 NOTES: 1. Leads and 16 may be half ...
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FULL-BRIDGE PWM MOTOR DRIVER 0.013 0.021 0.219 0.191 0.050 BSC 0.219 0.191 0.331 0.533 5.56 4.85 1.27 BSC 5.56 4.85 NOTES: 1. Index is centered on “D” side. 2. Webbed lead frame. Leads indicated are internally one piece. 3. ...
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FULL-BRIDGE PWM MOTOR DRIVER 0.2992 0.2914 0.020 0.013 0.0926 0.1043 7.60 7.40 0.51 0.33 2.65 2.35 NOTES: 1. Webbed lead frame. Leads indicated are internally one piece. 2. Lead spacing tolerance is non-cumulative. 3. Exact body and lead configuration ...
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FULL-BRIDGE PWM MOTOR DRIVER 0.020 INDEX AREA 1 0.065 0.035 0.51 INDEX AREA 1 1.65 0.89 NOTES: 1. Lead thickness is measured at seating plane or below. 2. Lead spacing tolerance is non-cumulative. 3. Exact body and lead configuration ...
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FULL-BRIDGE PWM MOTOR DRIVER Allegro MicroSystems, Inc. reserves 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 its products. The information included herein ...
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FULL-BRIDGE PWM MOTOR DRIVER * Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits or over-current protection voltage limits. Negative current is defined as coming out of (sourcing) the output. † Complete ...