a8904 Allegro MicroSystems, Inc., a8904 Datasheet - Page 4

• Manufacturer Part Number: a8904
• Description: 3-phase Brushless Dc Motor Controller/driver With Back Emf Sensing
• Manufacturer: Allegro MicroSystems, Inc.

A8904
Thermal Characteristics
Package Thermal Resistance
*Additional thermal information available on the Allegro website
Characteristic
LB (SOIC) Package
Symbol
R
3-Phase Brushless DC Motor Controller/Driver
θJA
Package LB, 4-layer PCB based on JEDEC standard
Package LB, 2-layer PCB with 1 in.
Package LP, 4-layer PCB based on JEDEC standard
Package LP, 2-layer PCB with 3.8 in
Test Conditions*
2
2
of copper area each side
of copper area each side
with Back EMF Sensing
LP (TSSOP) Package
115 Northeast Cutoff
1.508.853.5000; www.allegromicro.com
Allegro MicroSystems, Inc.
Worcester, Massachusetts 01615-0036 U.S.A.
Value Units
35
50
28
36
ºC/W
ºC/W
ºC/W
ºC/W
4