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LMD18201T Datasheet

  • LMD18201T

  • 3A, 55V H-Bridge

  • 8頁

  • NSC

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LMD18201 3A, 55V H-Bridge
April 1998
LMD18201
3A, 55V H-Bridge
General Description
The LMD18201 is a 3A H-Bridge designed for motion control
applications. The device is built using a multi-technology pro-
cess which combines bipolar and CMOS control circuitry
with DMOS power devices on the same monolithic structure.
The H-Bridge configuration is ideal for driving DC and step-
per motors. The LMD18201 accommodates peak output cur-
rents up to 6A. Current sensing can be achieved via a small
sense resistor connected in series with the power ground
lead. For current sensing without disturbing the path of cur-
rent to the load, the LMD18200 is recommended.
n
n
n
n
n
n
n
TTL and CMOS compatible inputs
No 鈥渟hoot-through鈥?current
Thermal warning flag output at 145藲C
Thermal shutdown (outputs off) at 170藲C
Internal clamp diodes
Shorted load protection
Internal charge pump with external bootstrap capability
Applications
n
n
n
n
n
DC and stepper motor drives
Position and velocity servomechanisms
Factory automation robots
Numerically controlled machinery
Computer printers and plotters
Features
n
Delivers up to 3A continuous output
n
Operates at supply voltages up to 55V
n
Low R
DS(ON)
typically 0.33鈩?per switch
Functional Diagram
DS010793-1
FIGURE 1. Functional Block Diagram of LMD18201
漏 1999 National Semiconductor Corporation
DS010793
www.national.com

LMD18201T 產品屬性

  • National Semiconductor (TI)

  • Tube

  • 20

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