Contact Us

Please use the form below to contact us with regards any questions you may have. We will endeavour to respond to you as quickly as we can. Please continue to browse the site for any other information in the meantime.

Required*

This field is required

First name *

This field is required

Last Name *

Please enter a valid Email Address

Business Email *

Phone number

This field is required

Job Title *

This field is required

Company *

This field is required

Country *

This field is required

State/ Province *

This field is required

Postal / Zip Code *

Comments

Stay informed about Allegro news, events and offers. You can review our opt-in messaging details in our Privacy Notice

This field is required

By selecting you grant Allegro permission to process your data and send you information. *

Form Unavaiable

In accordance with your Cookie preferences this form is not currently available. Should you wish to make a submission please allow Performance cookies to run in your browser session. You can access and change your preferences via the Cookie Settings button below or through our Footer link ‘Cookie Notice’ > ‘Cookie Settings’

AMT49406: Code-Free FOC Sensorless BLDC Motor Controller

24 contact QFN ES and 24 lead TSSOP LP packages

AMT49406 Datasheet

Navigate

Product Detail
Availability
Documentation and Resources

Description

Top Features

Packaging

The AMT49406 is a 3-phase, sensorless, brushless DC (BLDC) motor driver (gate driver) which can operate from 5.5 to 50 V—Allegro’s first QuietMotion solution. The AMT49406 is ideal for ceiling fans, pedestal fans, bathroom exhaust fans and home appliance fans and pumps.

A field-oriented control (FOC) algorithm is fully integrated to achieve the best efficiency and acoustic noise performance. The device optimizes the motor startup performance in a stationary condition, a windmill condition, and even in a reverse windmill condition.

Motor speed is controlled through analog, PWM, or CLOCK input. Closed-loop speed control is optional, and RPM-to-clock frequency ratio is programmable.

A simple I2C interface is provided for setting motor-rated voltage, rated current, rated speed, resistance, and startup profiles.

The AMT49406 is available in a 24-contact 4 mm × 4 mm QFN with exposed thermal pad (suffix ES) and a 24-lead TSSOP with exposed thermal pad (suffix LP). These packages are lead (Pb) free, with 100% matte-tin leadframe plating.

Coding-free, sensorless field-oriented control (FOC)
Proprietary non-reverse fast startup
Soft-On Soft-Off (SOSO) for quiet operation
Analog / PWM / Clock mode speed control
Closed-loop speed control
Configurable current limit
Windmill startup operation
Lock detection
Short-circuit protection (OCP)
Brake and direction inputs

Part Number Specifications and Availability

Results per page

	Samples	Part Number	Architecture	Control Interface	Commutation	モータの位置決め方法	電源電圧 Min. (V)	電源電圧 Max. (V)	ピーク出力電流 (A)	ブリッジ数	Package	マーケット	Part Composition / RoHS Data	Check Stock	ECAD
		AMT49406GESSR	Gate Driver	-	Field Oriented Control (FOC)	Sensorless	5.50	50.00	-	Half-Bridge x3	24-Pin QFN	Consumer, Industrial	View Data	Check Distributor Stock
		AMT49406GLPTR	Gate Driver	-	Field Oriented Control (FOC)	Sensorless	5.50	50.00	-	Half-Bridge x3	24-Pin TSSOP	Consumer, Industrial	View Data	Check Distributor Stock

Part Number	Architecture	Control Interface	Commutation	モータの位置決め方法	電源電圧 Min. (V)	電源電圧 Max. (V)	ピーク出力電流 (A)	ブリッジ数	Package	マーケット
AMT49406GESSR	Gate Driver		Field Oriented Control (FOC)	Sensorless	5.50	50.00		Half-Bridge x3	24-Pin QFN	ConsumerIndustrial
AMT49406GLPTR	Gate Driver		Field Oriented Control (FOC)	Sensorless	5.50	50.00		Half-Bridge x3	24-Pin TSSOP	ConsumerIndustrial

Documentation and Resources

Documentation

Filter Document Type:

All Types

All Types Selection Guide Technical Article

Documents Found: 2

Document Type	Document Name
Selection Guide	Allegro Product Selection Guide
Technical Article	Reduce Design Time by Simplifying Code Development in Ceiling Fan Applications.