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| 型号： | A3968SLBTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM DUAL 16SOIC |
| 标准包装： | 1 |
| 应用： | PWM 电机驱动器 |
| 输出数： | 2 |
| 电流 - 输出： | ±650mA |
| 电压 - 负载： | 4.75 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： | 标准包装 |
| 产品目录页面： | 1140 (CN2011-ZH PDF) |
| 其它名称： | 620-1141-6 |
A3968
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
? Brake mode
? User-selectable blanking window
? Internal ground-clamp and flyback diodes
? Internal thermal-shutdown circuitry
? Crossover-current protection and UVLO protection
Package: 16 pin SOIC (suffix LB)
Not to scale
Description
The A3968 bidirectionally controls two DC motors. 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, the INPUT A and INPUT B terminals determine
the load-current polarity by enabling the appropriate source and
sink driver pair. When a logic low is applied to both INPUTs
Continued on the next page…
Typical Application
MOTOR 1
1
16
MOTOR 2
INPUT 1A
INPUT 1B
2
3
4
LOGIC
V
BB
LOGIC
15
14
13
INPUT 2A
INPUT 2B
+5 V
0.5 Ω
5
6
12
11
0.5 Ω
+24 V
7
V
BB
V
CC
10
+5 V
8
V REF
RC
9
47 μ F
Dwg. EP-047-6
29319.29G
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3969 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Dual Full-Bridge PWM Motor Driver |
| A3969SET-T | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Dual Full-Bridge PWM Motor Driver |
| A3969SETTR-T | 功能描述:IC MOTOR DRVR PWM DUAL 28-QFN 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 |
| A-396A | 制造商:DWYER INSTRUMENTS 功能描述:A-396A CALIBRATION PUMP |
| A396EX42 | 制造商:GE 功能描述:5961010101556 |
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