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参数资料
| 型号： | A4938EETTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 10/10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
3-Phase Brushless DC Motor Pre-Driver
ET Package, 28-Contact QFN
0.30
1
2
28
A
5.00 ±0.15
5.00 ±0.15
1.15
1
28
0.50
3.15
4.80
3.15
0.25 –0.07
29X
D
0.08 C
+0.05
SEATING
PLANE
0.90 ±0.10
C
C
4.80
PCB Layout Reference View
0.50
For Reference Only
(reference JEDEC MO-220VHHD-1)
Dimensions in millimeters
0.55 –0.10
+0.20
2
1
B
3.15
Exact case and lead configuration at supplier discretion within limits shown
A Terminal #1 mark area
B Exposed thermal pad (reference only, terminal #1
identifierappearanceatsupplierdiscretion)
C Reference land pattern layout (reference IPC7351
QFN50P500X500X100-29V1M);
28
3.15
All pads a minimum of 0.20 mm from all adjacent pads; adjust as
necessary to meet application process requirements and PCB layout
tolerances;whenmountingonamultilayerPCB,thermalviasatthe
exposed thermal pad land can improve thermal dissipation (reference
EIA/JEDEC Standard JESD51-5)
D Coplanarity includes exposed thermal pad and terminals
Copyright ?2010-2013,Allegro MicroSystems, LLC
Allegro MicroSystems, LLC reserves the right to make, from time to time, such departures from the detail specifications as may be required to
permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that
the information being relied upon is current.
Allegro’s products are not to be used in life support devices or systems, if a failure of an Allegro product can reasonably be expected to cause the
failure of that life support device or system, or to affect the safety or effectiveness of that device or system.
The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, LLC assumes no responsibility for its
use; nor for any infringement of patents or other rights of third parties which may result from its use.
For the latest version of this document, visit our website:
www.allegromicro.com
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
10
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