Datasheet > LQB08A

LQB08A

更新时间： 2024-11-14 03:52:15

品牌	Logo	应用领域
美国国家半导体 - NSC		驱动器电机
页数	文件大小	规格书
12页	620K
描述
Single-Ended Input Motor Driver

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LQB08A 数据手册

April 2006

LM4570

Single-Ended Input Motor Driver

General Description

Key Specifications

The LM4570 is a single supply motor driver for improved

sensory experience in mobile phones and other handheld

devices. The LM4570 is capable of driving up to 192mA

while operating from a 3V supply. Near rail-to-rail output

swing under load ensures sufficient voltage drive for most

DC motors, while the differential output drive allows the

voltage polarity across the motor to be reversed quickly.

Reversing the voltage gives the LM4570 the ability to drive a

motor both clock-wise and counter clock-wise from a single

supply.

High Output Current V_DD= 3V

192mA

2.4ms

Fast Turn On Time 3V

Quiescent Power Supply Current 3V

Shutdown Current

1.9mA

0.1µA (typ)

Features

n Output Short Circuit Protection

n High Output Current Capability

n Wide Output Voltage Range

n Fast Turn on Time

The LM4570 features fast turn on time, and a wide input

voltage range for precise speed control. A low power shut-

down mode minimizes power consumption.

n Output Short Circuit Protection

n Low Power Shutdown Mode

n Minimum external components

n Available in space-saving LLP package

Thermal and output short circuit protection prevents the

device from being damaged during fault conditions.

Applications

n Mobile Phones

n PDAs

n Video Game Systems

Typical Application

20186326

FIGURE 1. Typical Motor Driver Application Circuit

DS201863

www.national.com

12 3 4 5 6 7...12

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