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| 型号： | A3966SLB |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM FULL 16SOIC |
| 标准包装： | 47 |
| 应用： | 步进电机驱动器，2 相 |
| 输出数： | 1 |
| 电流 - 输出： | ±650mA |
| 电压 - 负载： | 4.5 V ~ 30 V |
| 电源电压： | 4.75 V ~ 5.5 V |
| 工作温度： | -20°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC W |
| 包装： | 管件 |
A3966
Dual Full-Bridge PWM Motor Driver
Features and Benefits
? ±650 mA continuous output current
? 30 V output voltage rating
? Internal fixed-frequency PWM current control
? Satlington? sink drivers
? User-selectable blanking window
? Internal ground-clamp and flyback diodes
? Internal thermal-shutdown circuitry
? Crossover-current protection and UVLO protection
Package: 16 pin SOICW (suffix LB)
Not to scale
Description
The A3966 is designed to drive both windings of a two-phase
bipolar stepper motor. The device includes two full-bridges
capable of continuous output currents of ±650 mA and operating
voltages to 30 V. Motor winding current can be controlled by
the internal fixed-frequency, pulse-width modulated (PWM),
current-control circuitry. The peak load current limit is set
by user selection of a reference voltage and current-sensing
resistors.
The fixed-frequency pulse duration is set by a user-selected
external RC timing network. The capacitor in the RC timing
network also determines a user-selectable blanking window that
prevents false triggering of the PWM current-control circuitry
during switching transitions.
To reduce on-chip power dissipation, the full-bridge power
outputs have been optimized for low saturation voltages. The
sink drivers feature the Allegro ? patented Satlington ? output
structure. The Satlington outputs combine the low voltage drop
of a saturated transistor and the high peak current capability
of a Darlington.
For each bridge, a PHASE input controls load-current polarity
by selecting the appropriate source and sink driver pair. For
Continued on the next page…
Typical Application
1
16
PHASE 1
ENABLE 1
0.5 Ω
2
3
4
5
LOGIC
V BB
LOGIC
15
14
13
12
PHASE 2
ENABLE 2
0.5 Ω
+5 V
6
11
+24 V
7
8
V
REF
V
BB
V CC
RC
1 0
9
+5 V
47 μ F
Dwg. EP-047-4A
29319.25K
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3966SLB-T | 功能描述:IC MOTOR DRIVER PWM FULL 16-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: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 |
| A3966SLB-T | 制造商:Allegro MicroSystems 功能描述:Driver IC Leaded Process Compatible:Yes |
| A3966SLBTR | 功能描述:IC MOTOR DRIVER PWM FULL 16SOIC 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 |
| A3966SLBTR-T | 功能描述:IC MOTOR DRIVER PWM FULL 16SOIC 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 |
| A3967 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:MICROSTEPPING DRIVER WITH TRANSLATOR |
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