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参数资料
| 型号： | A3982SLB-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/11页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER STEPPER 24-SOIC |
| 标准包装： | 31 |
| 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： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 管件 |
| 其它名称： | 620-1082 |
A3982
DMOS Stepper Motor Driver with Translator
Features and Benefits
? 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
Package: 24 pin SOICW with internally
fused leads (suffix LB)
Not to scale
Description
The A3982 is a complete stepper motor driver with built-
in translator for easy operation. It is designed to operate
bipolar stepper motors in full- and half-step modes, with an
output drive capacity of up to 35 V and ±2 A. The A3982
includes a fixed off-time current regulator which has the
ability to operate in Slow or Mixed decay modes.
The translator is the key to the easy implementation of the
A3982. Simply inputting one pulse on the STEP input drives
the motor one step. There are no phase sequence tables, high
frequency control lines, or complex interfaces to program.
The A3982 interface is an ideal fit for applications where a
complex microprocessor is unavailable or is overburdened.
The chopping control in the A3982 automatically selects
the current decay mode (Slow or Mixed). When a signal
occurs at the STEP input pin, the A3982 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
Continued on the next page…
Pin-out Diagram
OUT2A
SENSE2
VBB2
OUT2B
ENABLE
PGND
PGND
CP1
CP2
1
2
3
4
5
6
7
8
9
24 OUT1A
23 SENSE1
22 VBB1
21 OUT1B
20 DIR
19 PGND
18 PGND
17 REF
16 STEP
26184.28C
VCP 10
VREG 11
MS1 12
15 VDD
14 ROSC
13 RESET
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3982SLB-T | 制造商:Allegro MicroSystems 功能描述:Motor Driver IC |
| A3982SLBTR | 功能描述:IC MOTOR DRIVER STEPPER 24-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:直流电机驱动器，步进电机驱动器 评估套件:- 输出数:1 或 2 电流 - 输出:750mA 电压 - 负载:10 V ~ 40 V 电源电压:4.5 V ~ 5.5 V 工作温度:-20°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-BFSOP（0.295"，7.50mm 宽） 供应商设备封装:24-SOP 包装:Digi-Reel® 其它名称:MTS62C19A-HS105DKR |
| A3982SLBTR-T | 功能描述:IC MOTOR DRIVER STEPPER 24-SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 电机和风扇控制器，驱动器 系列:- 标准包装:1 系列:- 应用:步进电机驱动器，1-2 相，2 相 评估套件:- 输出数:1 电流 - 输出:800mA 电压 - 负载:10 V ~ 28 V 电源电压:4.75 V ~ 5.25 V 工作温度:-20°C ~ 90°C 安装类型:表面贴装 封装/外壳:28-SOP + 2 翼片裸露焊盘 供应商设备封装:28-HSOPHC（15.2x7.9） 包装:剪切带 (CT) 其它名称:869-1268-1 |
| A3983 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DMOS Microstepping Driver with Translator |
| A3983_08 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:DMOS Microstepping Driver with Translator |
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