DN Staff

February 25, 2011

1 Min Read
Dual DMOS Full Bridge Motor Driver IC

Allegro MicroSystemsInc.'sdual DMOS full bridge motor driver IC is targeted at the office automation andconsumer and industrial markets. Designed for pulse width modulated (PWM)control of two dc motors, the A4954 is capable of peakoutput currents to plus or minus 2 A and operating voltages to 40V. Integrated chargepump capacitors reduce external component cost and count.

Inputterminals are provided for use in controlling the speed and direction of a dcmotor with externally applied PWM control signals. Internal synchronousrectification control circuitry is provided to lower power dissipation duringPWM 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.

TheA4954ELPTR-T is provided in a low-profile 16-pin TSSOP package with exposedthermal pad (suffix LP) that is lead (Pb) free, with 100 percent matte tin leadframe plating. It is priced at $1.37 in quantities of 1,000.
Dual DMOS Full Bridge Motor Driver IC

Dual DMOS Full Bridge Motor Driver IC


Sign up for the Design News Daily newsletter.

You May Also Like