KA44171A-VB

$0.60

Description：IC MTR DRV BLDC 5V-36V 20-WFQFN
Series：-
Mfr：Nuvoton Technology Corporation
Package：Tape & Reel (TR)

SKU:3f61c2609cc9 Category: Motor Drivers, Controllers Brand: Nuvoton Technology Corporation

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Product introduction

Product Detailed Parameters

Description：IC MTR DRV BLDC 5V-36V 20-WFQFN
Series：-
Mfr：Nuvoton Technology Corporation
Package：Tape & Reel (TR)
Motor Type - Stepper：Bipolar
Motor Type - AC, DC：Brushless DC (BLDC)
Function：Controller - Speed
Output Configuration：Half Bridge (2)
Interface：-
Technology：NMOS, PMOS
Step Resolution：-
Applications：Appliance
Current - Output：-
Voltage - Supply：5V ~ 36V
Voltage - Load：5V ~ 36V
Operating Temperature：-40°C ~ 105°C (TA)
Mounting Type：Surface Mount
Package / Case：20-WFQFN Exposed Pad
Supplier Device Package：20-QFN (3x3)
Grade：-
Qualification：-

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KA44171A-VB

Overview

The KA44171A-VB is a single-phase BLDC motor driver from Nuvoton Technology Corporation. It integrates APRaS (Advanced Phase and Rapid Soft switching) control and PWM soft-switching to enable quiet, high-efficiency operation. The device supports input voltages of 12V, 24V, and 48V. It features an operating ambient temperature range from -40°C to 105°C. The component is housed in a QFN20L package with dimensions of 3x3mm and a lead pitch of 0.4mm.

Feature Summary

Integrates APRaS technology for optimized high-speed motor performance
Supports PWM and DC input via built-in Pre-Driver
Enables silent and efficient driving through phase current soft-switching
Compatible with various power MOSFETs across wide voltage ranges

Applications

High-speed fan motors up to 100 krpm
Data center cooling systems
Telecommunication base station equipment
Industrial automation machinery

Procurement Notes

Verify the specific suffix variant against the official datasheet to ensure compatibility with the target application requirements. Confirm that the QFN20L package dimensions align with the PCB footprint design. Check for any regional distribution restrictions or supply limitations before finalizing procurement plans.

Selection Notes

Select this component for applications requiring high-speed single-phase BLDC motor control with low acoustic noise. Ensure the system operates within the specified 12V, 24V, or 48V input ranges. Verify thermal management capabilities for the -40°C to 105°C operating environment. Consider the small QFN20L package size for space-constrained designs.

Part Context

This part belongs to Nuvoton's series of single-phase motor drivers designed for industrial and consumer electronics. It complements other motion control solutions by providing integrated soft-switching capabilities. The device targets markets demanding high efficiency and low noise in compact form factors.