A3983 查看數據表（PDF） - Allegro MicroSystems

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产品描述 (功能)

生产厂家

A3983

DMOS Microstepping Driver with Translator

Allegro MicroSystems 

A3983

DMOS Microstepping Driver with Translator

THERMAL CHARACTERISTICS may require derating at maximum conditions, see application information

Characteristic

Package Thermal Resistance

Symbol

RθJA

Test Conditions*

Value Units

One-layer PCB, one-sided with copper limited to solder pads

100 ºC/W

One layer PCB, two-sided with copper limited to solder pads and

3.8 in.2 of copper area on each side, connected to GND pins

High-K PCB (multilayer with significant copper areas, based on

JEDEC standard)

32 ºC/W

28 ºC/W

*In still air. Additional thermal information available on Allegro Web site.

5.5

5.0

4.5

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0.0

20

Maximum Power Dissipation, PD(max)

(RθLJoAw=-(KR3θHJ2PAiCgºC=hB-/2KW8P)ºCCB/W)

(MRθiJnAim=u1m0-0KºPCC/WB)

40 60 80 100 120 140 160 180

Temperature (°C)

26184.29A

Allegro MicroSystems, Inc.

4

115 Northeast Cutoff, Box 15036

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

www.allegromicro.com

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