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A2919SLB-T

更新时间： 2024-11-26 04:02:55
品牌 Logo 应用领域
急速微 - ALLEGRO 驱动器运动控制电子器件信号电路光电二极管电动机控制
页数 文件大小 规格书
9页 281K
描述
DUAL FULL-BRIDGE PWM MOTOR DRIVER

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中文翻译

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A2919SLB-T 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：SOIC包装说明：LEAD FREE, BATWING, SOIC-24
针数：24Reach Compliance Code：unknown
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.83Is Samacsys：N
其他特性：ALSO REQUIRES 10V TO 45V VBB SUPPLY模拟集成电路 - 其他类型：STEPPER MOTOR CONTROLLER
JESD-30 代码：R-PDSO-G24JESD-609代码：e3
长度：15.4 mm湿度敏感等级：3
功能数量：1端子数量：24
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP24,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：260电源：5 V
认证状态：Not Qualified座面最大高度：2.65 mm
子类别：Motion Control Electronics最大供电电流 (Isup)：50 mA
最大供电电压 (Vsup)：5.25 V最小供电电压 (Vsup)：4.75 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：BIPOLAR温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：40宽度：7.5 mm
Base Number Matches：1

A2919SLB-T 数据手册

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2919  
DUAL FULL-BRIDGE  
PWM MOTOR DRIVER  
The A2919SB and A2919SLB motor drivers are designed to drive  
both windings of a bipolar stepper motor or bidirectionally control two dc  
motors. Both bridges are capable of sustaining 45 V and include  
internal pulse width modulation (PWM) control of the output current to  
750 mA. The outputs have been optimized for a low output-saturation  
voltage drop (less than 1.8 V total source plus sink at 500 mA).  
A2919SB  
V
BB  
LOAD  
S UP P LY  
1
2
3
24  
23  
22  
21  
OUT  
OUT  
1A  
2A  
E
1
1
S E NS E  
E
For PWM current control, the maximum output current is deter-  
mined by the user’s selection of a reference voltage and sensing  
resistor. Two logic-level inputs select output current limits of 0%, 41%,  
67%, or 100% of the maximum level. A PHASE input to each bridge  
determines load current direction.  
1
2
2
2
S E NS E  
OUT  
4
5
6
OUT  
1B  
20  
I
01  
2B  
G R OUND  
G R OUND  
19  
18  
G R OUND  
The bridges include both ground clamp and flyback diodes for  
protection against inductive transients. Internally generated delays  
prevent crossover currents when switching current direction. Special  
power-up sequencing is not required. Thermal protection circuitry  
disables the outputs if the chip temperature exceeds safe operating  
limits.  
7
8
G R OUND  
I
17  
16  
15  
14  
13  
I
11  
02  
9
θ
P HAS E  
1
I
1
12  
V
10  
P HAS E  
2
θ
R E F  
1
2
R C  
11  
12  
V
1
R E F  
R C  
2
2
The A2919SB is supplied in a 24-pin dual in-line plastic batwing  
package with a copper lead-frame and heat sinkable tabs for improved  
power dissipation capabilities. The A2919SLB is supplied in a 24-lead  
surface-mountable SOIC. Their batwing construction provides for  
maximum package power dissipation in the smallest possible construc-  
tion. The A2919SB/SLB are available for operation from -40°C to  
+85°C. To order, change the suffix from 'S–' to 'E–'. These devices are  
also available on special order for operation to +125°C. For applica-  
tions not requiring quarter-step operation, but desire lower detent or  
running current, the similar UDN2916B/EB/LB may be preferred.  
LOG IC  
S UP P LY  
V
C C  
Dwg. P P -005  
ABSOLUTE MAXIMUM RATINGS  
at TJ ≤ 150°C  
Motor Supply Voltage, V ................... 45 V  
BB  
Output Current, I  
OUT  
(Peak, tw ≤ 20 µs) ........................ ±1.0 A  
(Continuous) .......................... ±750 mA  
FEATURES  
■
750 mA Continuous Output Current  
Logic Supply Voltage, V  
.................. 7.0 V  
CC  
Logic Input Voltage Range,  
■ 45 V Output Sustaining Voltage  
V
......................... -0.3 V to V +0.3 V  
■
■
Internal Clamp Diodes  
IN  
CC  
Output Emitter Voltage, V .................. 1.5 V  
E
Internal PWM Current Control  
Package Power Dissipation,  
■ Low Output Saturation Voltage  
P
....................................... See Graph  
D
■ Internal Thermal Shutdown Circuitry  
Operating Temperature Range,  
■ Half- or Quarter-Step Operation of Bipolar Stepper Motors  
T ................................. -20°C to +85°C  
A
Storage Temperature Range,  
T ............................... -55°C to +150°C  
S
Output current rating may be limited by duty cycle,  
ambient temperature, and heat sinking. Under any  
set of conditions, do not exceed the specified  
peak current rating or a junction temperature of  
+150°C.  
1234567...9

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