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参数资料
| 型号： | A4988SETTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC MICROSTEPPER MOTOR DRVR 28QFN |
| 特色产品： | A498x Motor Driver Family |
| 标准包装： | 1 |
| 应用： | 步进电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±2A |
| 电压 - 负载： | 8 V ~ 35 V |
| 电源电压： | 3 V ~ 5.5 V |
| 工作温度： | -20°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/MLP 裸露焊盘（5x5） |
| 包装： | 标准包装 |
| 其它名称： | 620-1343-6 |
A4988
Description (continued)
DMOS Microstepping Driver with Translator
And Overcurrent Protection
Internal synchronous rectification control circuitry is provided
to improve power dissipation during PWM operation. Internal
circuit protection includes: thermal shutdown with hysteresis,
undervoltage lockout (UVLO), and crossover-current protection.
Special power-on sequencing is not required.
Selection Guide
The A4988 is supplied in a surface mount QFN package (ES), 5 mm
× 5 mm, with a nominal overall package height of 0.90 mm and an
exposed pad for enhanced thermal dissipation. It is lead (Pb) free
(suffix –T), with 100% matte tin plated leadframes.
Part Number
A4988SETTR-T
Package
28-contact QFN with exposed thermal pad
Packing
1500 pieces per 7-in. reel
Absolute Maximum Ratings
Characteristic
Load Supply Voltage
Output Current
Logic Input Voltage
Logic Supply Voltage
Motor Outputs Voltage
Sense Voltage
Reference Voltage
Operating Ambient Temperature
Maximum Junction
Storage Temperature
Symbol
V BB
I OUT
V IN
V DD
V SENSE
V REF
T A
T J (max)
T stg
Range S
Notes
Rating
35
±2
–0.3 to 5.5
–0.3 to 5.5
–2.0 to 37
–0.5 to 0.5
5.5
–20 to 85
150
–55 to 150
Units
V
A
V
V
V
V
V
oC
oC
oC
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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| A4989 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:The A4989 is a dual full-bridge gate driver with integrated microstepping translator suitable for driving a wide range of higher power industrial bipolar 2-phase stepper motors (typically 30 to 500 W). |
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