参数资料
型号: A4938EETTR-T
厂商: Allegro Microsystems Inc
文件页数: 2/10页
文件大小: 0K
描述: IC DC MOTOR PREDRIVER 3PH 28-QFN
标准包装: 1
应用: DC 电机控制器,无刷(BLDC),3 相
输出数: 1
电源电压: 8.5 V ~ 30 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-VFQFN 裸露焊盘
供应商设备封装: 28-QFN
包装: 标准包装
其它名称: 620-1383-6
A4938
Description (continued)
3-Phase Brushless DC Motor Pre-Driver
shutdown with hysteresis, undervoltage lockout, and dead time
protection. Special power-up sequencing is not required. Operating
temperature range is –40°C to 85°C.
Selection Guide
The A4938 is supplied in a 5 mm × 5 mm, 28-terminal QFN package
with exposed thermal pad. This small footprint package is lead (Pb)
free with 100% matte tin leadframe plating.
Part Number
A4938EETTR-T
Packing
1500 pieces per reel
Package
5 mm x 5 mm, 0.90 mm nominal height QFN
Absolute Maximum Ratings
Characteristics
Load Supply Voltage
Motor Phase Output
Hall Input
Logic Input Voltage Range
Operating Ambient Temperature
Maximum Junction Temperature
Storage Temperature
Symbol
V BB
S X
V Hx
V IN
T A
T J (max)
T stg
t w < 500 ns
DC
Range E
Notes
Rating
38
–3
–0.3 to 7
–0.3 to 7
–40 to 85
150
–40 to 150
Unit
V
V
V
V
oC
oC
oC
Thermal Characteristics
Characteristics
Package Thermal Resistance, Junction
to Ambient
Package Thermal Resistance, Junction
to Exposed Pad
Symbol
R θ JA
R θ JP
Test Conditions*
4-layer PCB based on JEDEC standard
Rating
32
2
Unit
oC/W
oC/W
*For additional information, refer to the Allegro website.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
2
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