A1441 ALLEGRO [Allegro MicroSystems], A1441 Datasheet

A1441

Manufacturer Part Number

A1441

Description

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

Manufacturer

ALLEGRO [Allegro MicroSystems]

Datasheet

1.A1441.pdf (4 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

A1441SELLT-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

A1441SHLLT-T

Manufacturer:

ALLEGRO/雅丽高

Quantity:

20 000

Current page: 1 of 4
Download datasheet (158Kb)

A1441-DS

Supply Voltage, V

Reverse Battery Voltage, V

Output Voltage, V

Control Input Voltage,V

Load Current*, I

Magnetic Flux Density, B ........................ Unlimited

Operating Temperature

Storage Temperature, T

*Positive I

Ambient, T

Maximum Junction, T

Package EL, 6-pin Surface Mount MLP

AB SO LUTE MAX I MUM RAT INGS

LOAD

Approximate Actual Size

, Range S .................. –20ºC to 85ºC

LOAD

flow is from VOUT1 to VOUT2.

OUT

Package EL

......................................... 5.0 V

............–0.3 V to V

............................... ±150 mA

IN(High)

.................. –65ºC to 170ºC

2 mm

J(max)

RDD

–0.3 V to V

....................... –0.3 V

........................165ºC

Low-Voltage Full-Bridge Brushless DC Motor Driver

+ 0.3 V

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 sensor to detect the position of an alternating-pole ring magnet. A

high density merged Bipolar-CMOS semiconductor process allows the integra-

tion 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 incor-

porated 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 hand-held video game controllers. These

devices also drive low power fan motors designed with cogging plates.

The small package outline and low profile 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 MLP microleadframe package for surface mount, with exposed pad for

enhanced thermal dissipation.

Features and Benefits

Use the following complete part numbers when ordering:

Single-chip solution for high reliability

Chopper stabilization technique for precise signal response over operating range

2.0 to 4.0 V operation

Sleep mode pin allowing external logic signal enable/disable to reduce average

power consumption

Restart feature

Small package size

Part Number

A1441SELLT-T

A1441

with Hall Element Commutation

Package

0.50 mm

Allegro MicroSystems, Inc.

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

7-in. Reel, 3000 pieces/reel

Packing

Related parts for A1441

A1441 Summary of contents

Page 1

... 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 hand-held video game controllers. These devices also drive low power fan motors designed with cogging plates. ...

Page 2

... Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation A1441-DS A1441 Functional Block Diagram Package EL, 2 × 2 mm, 6-pin Surface Mount MLP Terminal List Table Pin Name 1 VDD Supply voltage 2 ¯ S ¯ ¯ L ¯ ¯ E ¯ ¯ E ¯ ¯ P ¯ Toggle Sleep/Enabled modes ...

Page 3

... Chopping settling time is the required time to have valid device output after power up of the device. 4 Crossover dead time is a time period during which all output transistors are switched off. 5 Restart delay is a time period during which only one pair of the output transistors is switched on. A1441-DS A1441 Symbol Test Conditions V Running DD ...

Page 4

... Low-Voltage Full-Bridge Brushless DC Motor Driver with Hall Element Commutation 0.50 .020 0.32 .013 NOM 6 MIN 0.15 .006 MIN 1.100 .043 MAX C 2.40 .094 REF 0.20 .008 REF 1 D 0.50 .020 BSC 1.550 .061 BSC A1441-DS A1441 Package EL, 6-Pin MLP E 1.00 .0394 6 E 1.00 .0394 E 2.00 .079 BSC 0.32 .013 0.20 .008 0.50 .020 BSC 0.35 .014 0.15 .006 1 2 R0.200 .008 REF ...

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