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参数资料
| 型号： | A3967SLB-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 8/15页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM FULL 24-SOIC |
| 标准包装： | 31 |
| 应用： | 步进电机驱动器 |
| 输出数： | 1 |
| 电流 - 输出： | ±750mA |
| 电压 - 负载： | 4.75 V ~ 30 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： | 620-1073 |
A3967
Microstepping Driver with Translator
Applications Information
Layout. The printed wiring board should use a heavy
ground plane.
For optimum electrical and thermal performance, the
driver should be soldered directly onto the board.
The load supply terminal, V BB , should be decoupled
with an electrolytic capacitor (>47 μ F is recommended)
placed as close to the device as possible.
To avoid problems due to capacitive coupling of the
high dv/dt switching transients, route the bridge-output
traces away from the sensitive logic-input traces. Always
drive the logic inputs with a low source impedance to
increase noise immunity.
Grounding. A star ground system located close to the
driver is recommended.
The 24-lead SOIC has the analog ground and the
power ground internally bonded to the power tabs of the
package (leads 6, 7, 18, and 19).
Current Sensing. To minimize inaccuracies caused by
ground-trace IR drops in sensing the output current level,
the current-sense resistor (R S ) should have an indepen-
dent ground return to the star ground of the device. This
path should be as short as possible. For low-value sense
resistors the IR drops in the printed wiring board sense
resistor ’s traces can be signi ? cant and should be taken into
account. The use of sockets should be avoided as they can
introduce variation in R S due to their contact resistance.
Allegro MicroSystems recommends a value of R S
given by
R S = 0.5/I TRIP max
Thermal protection. Circuitry turns off all drivers when
the junction temperature reaches 165°C, typically. It is
intended only to protect the device from failures due to
excessive junction temperatures and should not imply that
output short circuits are permitted. Thermal shutdown has
a hysteresis of approximately 15°C.
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3967SLB-T | 制造商:Allegro MicroSystems 功能描述:Motor Controller / Driver IC |
| A3967SLBTR | 功能描述:IC MOTOR DRIVER PWM FULL 24SOIC 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 |
| A3967SLBTR-T | 功能描述:IC MOTOR DRIVER PWM FULL 24SOIC 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 |
| A3967SLBTR-T-CUT | 制造商:Allegro MicroSystems LLC 功能描述: |
| A3968 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Dual Full-Bridge PWM Motor Driver |
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