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参数资料
| 型号： | L9639 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO20 |
| 封装： | MO-166, SOP-20 |
| 文件页数： | 4/6页 |
| 文件大小： | 53K |
| 代理商： | L9639 |
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- Obsolete
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consists of two DMOS transistors connected in
series with common drain to act as a switch with
the voltage applied in both direction. A charge
pump takes the gates of the DMOS above the
supply voltage. The motor is controlled by the
control ’logic low voltage’ block that receives the
motor status for the comparator. The ’charge CEX’
block controls the TD delay.
1
2
3
ITH
ITHCC
STALL CURRENT
2.3A
FRICTION
1.2A
VTH_HIGH
VTH_LOW
Figure 1. Functional timing diagram.
LIVE
COMMON
NC
GND
OUT
NC
V+
GND
NC
GND
SHUNT
GND
RCEX
R_SHUNT
R_REF
M
C+
C_EX
R_EX
NC
VREF
Figure 2. Application schematic diagram.
All the necessary external components are shown in the application diagram. It is important to shunt the
motor with a device that limits the maximum over voltage to 40V. This is necessary when the power sup-
ply circuit is opened on motor power up. In this case the back E.M.F. must be clamped because there is
no other free wheel current path.
L9639
4/6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L9639PD013TR | 功能描述:马达/运动/点火控制器和驱动器 Current Motor Servo RoHS:否 制造商:STMicroelectronics 产品:Stepper Motor Controllers / Drivers 类型:2 Phase Stepper Motor Driver 工作电源电压:8 V to 45 V 电源电流:0.5 mA 工作温度:- 25 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:HTSSOP-28 封装:Tube |
| L963CG-1 | 制造商:Thomas & Betts 功能描述:ADVANTAGES OF STEEL CITY COMMERCIAL CONDUIT FITTINGS |
| L9641 | 制造商:Leviton Manufacturing Co 功能描述: |
| L964AD/L6D-3.2 | 制造商:Kingbright Corporation 功能描述: |
| L964CG-1 | 制造商:Thomas & Betts 功能描述:1-1/4 IN LB CONDUIT BDY W/CVR & GSK |
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