ASW Datasheet PDF Download -, ASW data sheet. Data Sheet. † inductive loads, the ASB and ASW are capable of continuous The ASW, for higher package power dissipation. ASW Dmos Full-bridge PWM Motor Driver NC REF/BRAKE RC GROUND LOGIC SUPPLY PHASE Details, datasheet, quote on part number: ASW.

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Special power-up sequencing is not required. The lead configuration enables easy attachment of a heat sink while fitting a standard printed wiring board layout.

Datasheet ASLB PDF ( Fiche technique )

Typical Data is for design information only. Care must be taken to ensure the capacitance is sufficient to absorb the energy without exceeding the voltage rating of a3951xw devices connected to the motor supply. In this case, a dc voltage on the REF input is used typically to limit the maximum a3951ssw current. Datasheet 4 Download Report. Designed for dataaheet pulse-width modulated current control of. An internal under-voltage lockout circuit prevents simultaneous conduction of the outputs when the device is powered up or powered down.

Output current rating may be limited by duty cycle. Published on Sep View Download 1. When the device is enabled, the internal current-control circuitry will be active and can be used to limit the load current in the normal internal PWM slow-decay or two-quadrant mode of operation.

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I 50 V Output Voltage Rating. These conditions can be tolerated but should be avoided. Lead spacing tolerance is non-cumulative.

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Lead gauge plane is 0. The a3951ssw off-time pulse duration is set by a user. In internal PWM applications, only the two top-side flyback diodes need be added.

The ASW, for higher package power dissipation requirements, is supplied in a pin single in-line power-tab package. The lead configuration enables.

PSoC Family Datasheet A user-selectable blanking window prevents false triggering of the PWM current control circuitry. Before placing an order, the user is cautioned to verify that the information being relied upon is current. Internal fixed off-time PWM current-control circuitry can be used to regulate the maximum load current to a desired value. Competitive part numbers datasjeet shown in strict alpha-numerical order; letters are listed before numbers LX precedes L a951sw CS is listed before CS The brake function can be safely used to dynamically brake brush dc motors.

The fixed off-time pulse duration is set by a userselected external RC timing network. Logic Input Voltage Range. The current generated will depend on the mode of operation. Exact replacement in all applications is not guaranteed and the user should compare the specifications of the competitive and recommended Allegro replacement.

However, Allegro MicroSystems, Inc. After the crossover delay, CT is charged by an internal current source of approximately 1 mA. The brake function can be safely used to dynamically brake brush dc motors. This is useful in applications with differing run and brake currents and no practical method of varying VREF.

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FULL-BRIDGE PWM MOTOR DRIVER

For new system de. The ASB is supplied in a pin dual in-line plastic package with copper heat-sink contact tabs. The peak load current limit is. When the device is re-enabled, CT is charged by the internal current source.

The lead configuration enables easy attachment of a heat sink while fitting a standard printed wiring board layout. Internal circuit protection includes. A user-selectable blanking window prevents false triggering of the PWM. This simplifies the servo-control loop because the transfer function between the duty cycle on the PHASE input and the average voltage applied to the motor is more linear than in the case of ENABLE PWM control which produces a discontinuous current at lowcurrent levels.

Special power-up sequencing is not. Includes internal default Vsense level for over-current protection. Each driver is tested separately. However, Allegro MicroSystems, Inc. The fixed off-time pulse duration is set by a user- selected external RC timing network. EP The ASB and ASW may be used for bidrectional control of bipolar stepper motors with continuous output currents to 2 A and peak start-up currents as high as 3.

For more information regarding load current regulation, see below.