dual DMOS full bridge motor driver IC is targeted at the office automation and
consumer and industrial markets. Designed for pulse width modulated (PWM)
control of two dc motors, the A4954 is capable of peak
output currents to ±2 A and operating voltages to 40V. Integrated charge
pump capacitors reduce external component cost and count.
terminals are provided for use in controlling the speed and direction of a dc
motor with externally applied PWM control signals. Internal synchronous
rectification control circuitry is provided to lower power dissipation during
PWM operation. Internal circuit protection includes overcurrent protection,
motor lead short to ground or supply, thermal shutdown with hysteresis,
undervoltage monitoring of VBB, and crossover current protection.
A4954ELPTR-T is provided in a low-profile 16-pin TSSOP package with exposed
thermal pad (suffix LP) that is lead (Pb) free, with 100 percent matte tin lead
frame plating. It is priced at $1.37 in quantities of 1,000.
Sensor deployment in automated factories should be done slowly and conservatively, otherwise engineers may face the loss of hundreds of thousands or even millions of dollars, an Internet of Things expert will tell attendees at the upcoming Design & Manufacturing Show in Minneapolis.
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