LMD18245T ZIP-15 (1pcs)

FEATURES

● DMOS Power Stage Rated at 55V and 3AContinuous

● Low RDS(ON)of Typically 0.3Ω per Powerswitch

● Internal Clamp Diodes

● Low-loss Current Sensing Method

● Digital or Analog Control of Motor Current

● TTL and CMOSCompatible Inputs

● Thermal Shutdown (Outputs Off) at TJ=155℃

● Overcurrent Protection

● No Shoot-Through Currents

● 15-lead Package

APPLICATIONS

● Full, Half and Microstep Stepper Motor Drives

● Stepper Motor and Brushed DC Motor ServoDrives

● Automated Factory,Medical and OfficeEquipment

DESCRIPTION

The all the circuit blocks required to driveand control current in a brushed type DC motor orone phase of a bipolar stepper motor. The multi-technologyprocess used to buildthe devicecombines bipolar and CMOS control and protectioncircuitry with DMOS power switches on the samemonolithic structure. The LMD18245 controls themotor current via a fixed off-time chopper technique.

Anall DMOSH-bridgepower stage deliverscontinuous output currents up to 3A (6A peak) atsupply voltages up to 55V. The DMOS powerswitches feature low RDS(ON)for high efficiency, and adiode intrinsic to the DMOS body structure eliminatesthe discrete diodes typically required to clamp bipolarpower stages.

An innovative current sensing method eliminates thepower loss associated with a sense resistor in serieswith the motor. A four-bit digital-to-analog converter(DAC) provides a digital path for controlling the motorcurrent, and, by extension, simplifies implementationof full, half and microstep stepper motor drives.Forhigher resolution applications,an external DAC canbe used.

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1. We offer a warranty on all items we sell. Each item is tested before shipping to ensure it is in good condition. If you experience any problems, please feel free to contact us.

2. Please email us to report a defective item. Unless otherwise specified, this item comes with a 90-day warranty from the shipment date.

3. You must contact us before returning any product. All returns must be made within 90 days from the shipment date. Returns must be in new condition (the same condition as it was sent to you).

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Please refer to UTSource shipping fee page:

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