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参数资料
| 型号： | UDQ2916LBTR-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC MOTOR DRIVER PWM DUAL 24SOIC |
| 标准包装： | 1 |
| 应用： | 直流电机驱动器，步进电机驱动器 |
| 输出数： | 2/1 |
| 电流 - 输出： | ±750mA |
| 电压 - 负载： | 10 V ~ 45 V |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | -40°C ~ 105°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： | 标准包装 |
| 产品目录页面： | 1141 (CN2011-ZH PDF) |
| 其它名称： | 620-1158-6 |
2916
Dual Full-Bridge PWM Motor Driver
Features and Benefits
? 750 mA continuous output current
? 45 V output sustaining voltage
? Internal clamp diodes
? Internal PWM current control
? Low output saturation voltage
? Internal thermal shutdown circuitry
? Similar to dual PBL3717 or UC3770
Packages
Package B 24-pin
Batwing DIP
Package LB 24-pin
Batwing SOICW
Package EB 44-pin PLCC
with internally-fused leads
Description
The UDx2916 motor drivers 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).
For PWM current control, the maximum output current is
determined by user selection of a reference voltage and sensing
resistor. Two logic-level inputs select output current limits of
0%, 33%, 67%, or 100% of the maximum level. A PHASE
input to each bridge determines load current direction.
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.
The device is supplied in a 24-pin dual in-line plastic (DIP,
package B) with two pairs of batwing leads as heat-sinkable
tabs for enhanced power dissipation capabilities. The LB
package is a 24-lead surface-mount wide SOIC with two pairs
Continued on the next page…
Not to scale
PWM Current-Control Circuitry
'B' PACKAGE,
CHANNEL 1
PIN NUMBERS
SHOWN.
V REF 15
1
OUT A
V BB
24
OUT B
21
20 k
23
E
40 k
10 k
10
SENSE –
22 +
RC
ONE
SHOT
14 RC
SOURCE
DISABLE
I 0 20
I 1 17
RS
C
C
R
T
C
T
Dwg. EP-007B
29319.20R
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相关代理商/技术参数 |
参数描述 |
|---|---|
| UDQ2917EB | 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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| UDQ2936W-120 | 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER |
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