UC3172ADWP

Motor Drivers, Controllers Overview

The UC3172ADWP is a voice coil motor controller manufactured by Texas Instruments, designed for precision actuator management. It operates within a supply voltage range of 4.5 V to 36 V and delivers a continuous output current of 1 A. The device integrates an internal power switch rated at 1 A and features a PWM frequency range from 10 kHz to 100 kHz. It utilizes a PDSO-28 package with an operating temperature range spanning -40°C to +85°C. Key electrical parameters include a maximum duty cycle of 95% and a minimum off-time of 1 µs.

Motor Drivers, Controllers Feature Summary

• Integrates a dedicated 1 A power switch for direct actuator drive
• Supports variable frequency pulse-width modulation control
• Includes built-in protection mechanisms against overcurrent conditions

Motor Drivers, Controllers Applications

• Optical disk drive spindle and focus actuator control
• Hard disk drive head positioning systems
• Precision linear actuator applications requiring closed-loop feedback

Motor Drivers, Controllers Procurement Notes

Verify the specific suffix 'P' indicates tape and reel packaging when sourcing. Confirm the manufacturer source, as Rochester Electronics may distribute this component alongside Texas Instruments. Ensure the ordering part number matches the exact package variant required for your PCB layout.

Motor Drivers, Controllers Selection Notes

Select this component for applications requiring integrated high-current switching without external drivers. Consider the thermal performance of the SOIC-28 package for heat dissipation requirements. Evaluate the compatibility of the PWM input interface with your microcontroller or feedback loop circuitry before implementation.

Motor Drivers, Controllers Part Context

This device belongs to the UC317x family of voice coil motor controllers. It shares functional similarities with other members like the UC3172ADW but differs in packaging configuration. The ADWP designation specifically denotes the plastic small-outline package variant suitable for surface-mount assembly processes.

Motor Drivers, Controllers Replacement Considerations

UC3172ADW serves as a pin-compatible alternative differing primarily in packaging format.