LM4570LQSLASHNOPB.A中文资料德州仪器数据手册PDF规格书

1FEATURES

2• Output Short Circuit Protection

• High Output Current Capability

• Wide Output Voltage Range

• Fast Turn on Time

• Output Short Circuit Protection

• Low Power Shutdown Mode

• Minimum External Components

• Available in Space-Saving WSON Package

APPLICATIONS

• Mobile Phones

• PDAs

• Video Game Systems

KEY SPECIFICATIONS

• High Output Current @ VDD = 3V: 192 mA

• Fast Turn On Time @ 3V: 2.4 ms

• Quiescent Power Supply Current @ 3V: 1.9 mA

• Shutdown Current: 0.1 μA (Typ)

DESCRIPTION

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.

The LM4570 features fast turn on time, and a wide

input voltage range for precise speed control. A low power shutdown mode minimizes power

consumption.

Thermal and output short circuit protection prevents

the device from being damaged during fault

conditions.