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参数资料
| 型号： | APEK4979GLP-01-T-DK |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/44页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL MOTOR CONTROL A4979 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电机控制，步进控制器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | A4979 |
| 已供物品： | 板 |
| 其它名称： | 620-1468 |
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A4979
Microstepping Programmable Stepper Motor Driver
With Stall Detect and Short Circuit Protection
Features and Benefits
? Typical application up to 1.5 A, 50 V
? Stall detect features
? Low R DS(on) outputs, 0.5 Ω source and sink, typical
? Automatic current decay mode detection/selection
? Mixed, Fast, and Slow current decay modes
? Synchronous rectification for low power dissipation
? Internal UVLO and Thermal Shutdown circuitry
? Crossover-current protection
? Short circuit and open load diagnostics
? Hot and cold thermal warning
? SPI-compatible or simple Step and Direction motion control
? Highly configurable via SPI-compatible serial interface
Applications
? Industrial stepper motor drives
? Printers
? Textile machines
Package: 28-pin TSSOP with exposed
thermal pad (suffix LP)
Not to scale
Description
The A4979 is a flexible microstepping motor driver with
built-in translator for easy operation. It is a single-chip solution,
designed to operate bipolar stepper motors in full-, half-,
quarter- and sixteenth-step modes, at up to 50 V and 1.5 A. The
A4979 can be controlled by simple Step and Direction inputs,
or through the SPI-compatible serial interface that also can be
used to program many of the integrated features and to read
diagnostic information.
The current regulator can be programmed to operate in fixed
off-time or fixed frequency PWM, with several decay modes
to reduce audible motor noise and increase step accuracy.
In addition the phase current tables can be programmed via
the serial interface to create unique microstep current
profiles to further improve motor performance for
specific applications.
The current in each phase of the motor is controlled through a
DMOS full bridge, using synchronous rectification to improve
power dissipation. Internal circuits and timers prevent cross-
conduction and shoot-through, when switching between high-
side and low-side drives.
The outputs are protected from short circuits, and features
for low load current and stalled rotor detection are included.
Chip-level protection includes: hot and cold thermal warnings,
overtemperature shutdown, and undervoltage lockout.
The A4979 is supplied in a 28-pin TSSOP power package with
an exposed thermal pad (package type LP). This package is
lead (Pb) free with 100% matte-tin leadframe plating.
Typical Applications
Logic
Supply
CP1 CP2 VCP VBB
VDD
VBB
Logic
Supply
CP1 CP2 VCP VBB
VDD
VBB
Micro-
controller
or
ECU
STEP
DIR
MS0
MS1
ENABLE
RESETn
DIAG
REF
SDI
SDO
SCK
STRn
OAP
OAM
A4979
OBP
OBM
Stepper
Motor
Micro-
controller
or
ECU
STEP
DIR
MS0
MS1
ENABLE
RESETn
DIAG
REF
SDI
SDO
SCK
STRn
OAP
OAM
A4979
OBP
OBM
Stepper
Motor
VREG
OSC
SENSA
SENSB
VREG
OSC
SENSA
SENSB
A4979-DS, Rev. 2
AGND PGND
Serial Interface Control
AGND PGND
Parallel Control
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相关代理商/技术参数 |
参数描述 |
|---|---|
| APEK4984SLP-01-T | 功能描述:BOARD EVAL MOTOR CONTROL A4984 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| APEK4984SLP-01-T-DK | 功能描述:A4984 - Power Management, Motor Control, Stepper Evaluation Board 制造商:allegro microsystems, llc 系列:- 零件状态:有效 主要用途:电源管理，电机控制，步进控制器 嵌入式:否 使用的 IC/零件:A4984 主要属性:- 辅助属性:- 所含物品:板 标准包装:1 |
| APEK4985SLP-01-T | 功能描述:Board Eval Motor Control A4985 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| APEK4985SLP-01-T-DK | 功能描述:A4985 - Power Management, Motor Control, Stepper Evaluation Board 制造商:allegro microsystems, llc 系列:- 零件状态:有效 主要用途:电源管理，电机控制，步进控制器 嵌入式:否 使用的 IC/零件:A4985 主要属性:- 辅助属性:- 所含物品:板 标准包装:1 |
| APEK4986SLP-01-T | 功能描述:Board Eval Motor Control A4986 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
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