A1441EELLT-T

A1441EELLT-T Datasheet

A1441 Hall Effect Direction Detection Sensor

Part	Datasheet
A1441EELLT-T	A1441EELLT-T (pdf)

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A1441 Hall Effect Direction Detection Sensor Discontinued Product This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available. Date of status change November 2, 2009 Recommended Substitutions: For existing customer transition, and for new customers or new applications, contact Allegro Sales. NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative. A1441 Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation Single-chip solution for high reliability Chopper stabilization technique for precise signal response over operating range to V operation Sleep mode pin allowing external logic signal enable/ disable to reduce average power consumption Restart feature Small package size Package 6 Contact MLP/DFN/SON suffix EL The A1441 is a full-bridge motor driver designed to drive low-voltage bipolar brushless DC motors. Commutation of the motor is achieved by use of a single Hall element to detect the position of an alternating-pole ring magnet. A high density merged Bipolar-CMOS semiconductor process allows the integration of the Hall element on the same IC as the motor control circuitry, providing a single-chip solution for enhanced reliability. All necessary circuitry is incorporated within the device package, eliminating the need for any external support components. A micropower sleep mode can be enabled by an external signal, to reduce current consumption for battery management in portable electronic devices. In addition, the device offers an active function for motor braking. The A1441 is optimized for vibration motor applications such as cellular phones, pagers, electronic toothbrushes, and handheld video game controllers. These devices also drive low power fan motors designed with cogging plates. Approximate Scale 1:1 Continued on the next Functional Block Diagram A1441 Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation Description continued The small package outlines and low profiles make this device ideally suited for use in applications where printed circuit board area and component headroom are at a premium. It is available in a lead Pb free leadframe plating 100% matte tin 6-pin surface mount MLP microleadframe DFN package, with exposed pad for enhanced thermal dissipation. Selection Guide Package A1441EELLT-T MLP 2x2 mm nom. height For additional packing options, contact Allegro. Packing 3000 pieces/ 7-in. reel Absolute Maximum Ratings Symbol VDD VRDD VOUT VIN High ILOAD B TA TJ max Tstg Notes Positive ILOAD flow is from VOUT1 to VOUT2 Range E Pin-out Diagram VDD 1 SLEEP 2 6 VOUT2 Sleep Mode Control Drive Control Driver

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A1441 Hall Effect Direction Detection Sensor

Discontinued Product

This device is no longer in production. The device should not be purchased for new design applications. Samples are no longer available.

Date of status change November 2, 2009

Recommended Substitutions:

For existing customer transition, and for new customers or new applications, contact Allegro Sales.

NOTE For detailed information on purchasing options, contact your local Allegro field applications engineer or sales representative.

A1441

Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation

Single-chip solution for high reliability Chopper stabilization technique for precise signal
response over operating range to V operation Sleep mode pin allowing external logic signal enable/
disable to reduce average power consumption Restart feature Small package size

Package 6 Contact MLP/DFN/SON suffix EL

The A1441 is a full-bridge motor driver designed to drive low-voltage bipolar brushless DC motors. Commutation of the motor is achieved by use of a single Hall element to detect the position of an alternating-pole ring magnet. A high density merged Bipolar-CMOS semiconductor process allows the integration of the Hall element on the same IC as the motor control circuitry, providing a single-chip solution for enhanced reliability. All necessary circuitry is incorporated within the device package, eliminating the need for any external support components.

A micropower sleep mode can be enabled by an external signal, to reduce current consumption for battery management in portable electronic devices. In addition, the device offers an active function for motor braking.

The A1441 is optimized for vibration motor applications such as cellular phones, pagers, electronic toothbrushes, and handheld video game controllers. These devices also drive low power fan motors designed with cogging plates.

Approximate Scale 1:1

Continued on the next

Functional Block Diagram

A1441

Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation

Description continued The small package outlines and low profiles make this device ideally suited for use in applications where printed circuit board area and component headroom are at a premium. It is available in
a lead Pb free leadframe plating 100% matte tin 6-pin surface mount MLP microleadframe DFN package, with exposed pad for enhanced thermal dissipation.

Selection Guide

Package

A1441EELLT-T MLP 2x2 mm nom. height
*For additional packing options, contact Allegro.

Packing* 3000 pieces/ 7-in. reel

Absolute Maximum Ratings

Symbol VDD VRDD VOUT

VIN High ILOAD B TA

TJ max Tstg

Notes

Positive ILOAD flow is from VOUT1 to VOUT2 Range E

Pin-out Diagram

VDD 1 SLEEP 2
6 VOUT2

Sleep

Mode Control

Drive Control

Driver

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Datasheet ID: A1441EELLT-T 516009