参数资料
型号: A4983SETTR-T
厂商: Allegro Microsystems Inc
文件页数: 2/16页
文件大小: 0K
描述: IC MOTOR DRIVER MICROSTEP 28-QFN
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
产品目录页面: 1141 (CN2011-ZH PDF)
其它名称: 620-1194-6
A4983
Description (continued)
DMOS Microstepping Driver with Translator
slow decay for the remainder of the off-time). This current decay
control scheme results in reduced audible motor noise, increased
step accuracy, and reduced power dissipation.
Internal synchronous rectification control circuitry is provided to
improve power dissipation during PWM operation. Internal circuit
protection includes: thermal shutdown with hysteresis, undervoltage
Selection Guide
lockout (UVLO), and crossover-current protection. Special power-
on sequencing is not required.
The A4983 is supplied in a 5 mm × 5 mm × 0.90 nominal surface
mount QFN package with exposed thermal pad (suffix ET). The
package is lead (Pb) free (suffix –T), with 100% matte tin plated
leadframe.
Part Number
A4983SETTR-T
Pb-free
Yes
Package
28-pin QFN with exposed thermal pad
Packing
1500 pieces per 7-in. reel
Absolute Maximum Ratings
Characteristic
Load Supply Voltage
Output Current
Logic Input Voltage
Sense Voltage
Reference Voltage
Operating Ambient Temperature
Maximum Junction
Storage Temperature
Symbol
V BB
I OUT
V IN
V SENSE
V REF
T A
T J (max)
T stg
Duty Cycle < 20%
Range S
Notes
Rating
35
±2
±2.5
–0.3 to 7
0.5
4
–20 to 85
150
–55 to 150
Units
V
A
A
V
V
V
oC
oC
oC
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
2
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