A1441EELLT-T Allegro Microsystems Inc, A1441EELLT-T Datasheet - Page 2

• Manufacturer Part Number: A1441EELLT-T
• Description: IC LO VOLT DC MOTOR DRIVER 6MLP
• Manufacturer: Allegro Microsystems Inc

Specifications of A1441EELLT-T

• Applications: DC Motor Driver, Brushless (BLDC)
• Number Of Outputs: 1
• Voltage - Supply: 2 V ~ 4 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 6-UFDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Other names: 620-1167-2

Features and Benefits
▪ Single-chip solution for high reliability
▪ Chopper stabilization technique for precise signal
▪ 2.0 to 4.0 V operation
▪ Sleep mode pin allowing external logic signal enable/
▪ Restart feature
▪ Small package size
Package: 6 Contact MLP/DFN/SON (suffix EL)
1441-DS, Rev. 4
response over operating range
disable to reduce average power consumption
Approximate Scale 1:1
1
Low-Voltage Full-Bridge Brushless DC Motor Driver
2
3
6
5
4
Functional Block Diagram
with Hall Element Commutation
Description
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 hand-
held video game controllers. These devices also drive low
power fan motors designed with cogging plates.
Continued on the next page…
A1441