ELMOS: motor driver with LIN/PWM interface and controller supply

The motor driver powers 3 external NMOS half-bridges for BLDC or DC motors, optionally with 3 or 6 PWM input signals. Small loads can be directly controlled. The dead time between the high-side and low-side FETs can be adjusted most precisely via SPI interface, thus enabling the optimized control of the power drivers. Elaborate diagnostic and protective features such as short-circuit detection at all external FETs and voltage, current and temperature monitoring provide for the best possible safety.

Due to its very low power loss and the efficient QFN package, the IC can also be used in high-temperature environments. Other characteristics of the E523.01 are the low standby current drain (<50µA), the motor current measuring amplifier, and the optional boost transistor for the integrated voltage regulator. With the help of this external transistor, the microprocessor can be supplied with higher current levels or the internal power loss of the E523.01 can be minimized even further.

In addition to the E523.01, the E523.11 is available with just a PWM interface. Both products can be supplied in the QFN44L7 or the QSOP44 package.

For more information or samples, please send an e-mail with the subject “E523.01/11” to sales@elmos.de, visit our website www.elmos.com (to the motor products), or call us at: + 49 231 7549 100.