LM4570 Texas instruments

LM4570

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LM4570

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Описание

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.

Key Specifications

High Output Current @ V_DD = 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)

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Haptic actuator type	ERM, LRA
Input signal	Analog, PWM
Vs (min) (V)	2.4
Vs (max) (V)	5.5
Vout (max) (V)	5.3
Iq (typ) (mA)	2.5
Shutdown current (ISD) (µA)	0.1
Startup time (ms)	2.4
Operating temperature range (°C)	-40 to 85
Rating	Catalog