A3983SLP

更新时间： 2024-11-26 22:14:43

品牌	Logo	应用领域
急速微 - ALLEGRO		驱动器
页数	文件大小	规格书
13页	329K
描述
DMOS Microstepping Driver with Translator

阅读下载

中文翻译

获取价格

数据手册
替代型号

如果您发现信息不准确，欢迎纠错

A3983SLP 数据手册

A3983

DMOS Microstepping Driver with Translator

The A3983 is a complete microstepping motor driver with built-in

translator for easy operation. It is designed to operate bipolar stepper

motors in full-, half-, quarter-, and eighth-step modes, with an output

Package LP

drive capacity of up to 35 V and ±2 A. The A3983 includes a fixed off-

time current regulator which has the ability to operate in Slow or Mixed

decay modes.

GND

CP1

CP2

ENABLE

OUT2B

VBB2

The translator is the key to the easy implementation of the A3983.

Simply inputting one pulse on the STEP input drives the motor one

microstep. There are no phase sequence tables, high frequency control

lines, or complex interfaces to program. The A3983 interface is an ideal

fit for applications where a complex microprocessor is unavailable or is

overburdened.

VCP

VREG

MS1

SENSE2

OUT2A

OUT1A

SENSE1

VBB1

MS2

RESET

ROSC

SLEEP

VDD

The chopping control in the A3983 automatically selects the current

decay mode (Slow or Mixed). When a signal occurs at the STEP input

pin, the A3983 determines if that step results in a higher or lower

current in each of the motor phases. If the change is to a higher current,

then the decay mode is set to Slow decay. If the change is to a lower

current, then the current decay is set to Mixed (set initially to a fast

decay for a period amounting to 31.25% of the fixed off-time, then

to a 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.

OUT1B

DIR

STEP

REF

GND

Approximate Scale 1:1

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.

ABSOLUTE MAXIMUM RATINGS

Load Supply Voltage,V_BB...................................35 V

Output Current, I_OUT.........................................±2 A^*

Logic Input Voltage, V_IN..................... –0.3 V to 7 V

Sense Voltage, V_SENSE.......................................0.5 V

Reference Voltage, V_REF………..........................4 V

Operating Temperature Range

Ambient, T_A................................. –20°C to 85°C

Junction Temperature, T_J(MAX).....................150°C

Storage Temperature, T_S.................... –55°C to 150°C

^*Output current rating may be limited by duty cycle,

ambient temperature, and heat sinking. Under any

set of conditions, do not exceed the specified current

rating or a junction temperature of 150°C.

The A3983 is supplied in a low-profile (1.2 mm maximum), 24-pin

TSSOP with exposed thermal pad (package LP). It is also available

in a lead (Pb) free version (suffix –T), with 100% matte tin plated

leadframes.

FEATURES

ꢀ

Low R_DS(ON)outputs

Automatic current decay mode detection/selection

Mixed and Slow current decay modes

Synchronous rectification for low power dissipation

Internal UVLO and thermal shutdown circuitry

Crossover-current protection

Use the following complete part number when ordering:

Part Number Pb-free

Package

Description

A3983SLP

–

24-pin, TSSOP

Exposed thermal pad

A3983SLP-T

Yes

26184.29A

12 3 4 5 6 7...13

中文翻译

下载PDF

A3983SLP 替代型号

型号	品牌	替代类型	描述	数据表
A3984SLP-T	ALLEGRO	完全替代	DMOS Microstepping Driver with Translator
A3983SLP-T	ALLEGRO	完全替代	DMOS Microstepping Driver with Translator
A3982SLB-T	ALLEGRO	完全替代	DMOS Stepper Motor Driver with Translator

与A3983SLP相关器件

型号	品牌	获取价格	描述	数据表
A3983SLP-T	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3983SLPTR	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3983SLPTR-T	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984_08	ALLEGRO	获取价格	The A3984 is a complete microstepping motor driver with built-in translator for easy opera
A3984_13	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984SLP	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984SLP-T	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984SLPTR	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator
A3984SLPTR-T	ALLEGRO	获取价格	DMOS Microstepping Driver with Translator

与A3983SLP相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

46
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

63
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

60

产品中心

服务支持

精选活动

关于我们

帮助中心

A3983SLP

A3983SLP 数据手册

A3983SLP 替代型号

与A3983SLP相关器件

与A3983SLP相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

A3983SLP

A3983SLP 数据手册

A3983SLP 替代型号

与A3983SLP相关器件

与A3983SLP相关文章

您还可以找

您在本页遇到什么问题？