参数资料
型号: A3979SLPTR-T
厂商: Allegro Microsystems Inc
文件页数: 3/15页
文件大小: 0K
描述: IC DRIVER MICROSTEPPING 28-TSSOP
标准包装: 1
应用: 步进电机驱动器
输出数: 1
电流 - 输出: ±2.5A
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-SOIC(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 28-TSSOP 裸露焊盘
包装: 标准包装
产品目录页面: 1140 (CN2011-ZH PDF)
其它名称: 620-1148-6
A3979
DMOS Microstepping Driver with Translator
Functional Block Diagram
0.22 μF
0.22 μF
Logic
Supply
VREG
2V
CP2
CP1
VDD
UVLO and
Fault
Regulator
Bandgap
Charge
Pump
VCP
Reference
Supply
0.22 μF
Load
REF
DAC
DMOS Full Bridge
VBB1
Supply
RC1
>47 μF
STEP
4
OUT1A
R T1
C T1
DIR
RESET
PWM Timer:
PWM Latch
OUT1B
MS1
Translator
Blanking
Mixed Decay
SENSE1
MS2
HOME
Gate
Drive
R S1
C S1
SLEEP
SR
4
Control
Logic
DMOS Full Bridge
VBB2
ENABLE
V PFD
OUT2A
PFD
PWM Timer:
OUT2B
0.1 μF
RC2
PWM Latch
Blanking
Mixed Decay
SENSE2
R T2
C T2
DAC
R S2
C S2
Exposed Thermal Pad
AGND
PGND
(Required)
Allegro MicroSystems, LLC
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
3
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