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Product Abstract

Rev. 4.7

11/2/2015

5.

Application Examples

15

The following sections show typical application examples

5.1

Sensor-less BLDC Motor Control on the LIN bus or via PWM-Interface

The below application example with MLX81205 realizes a sensor-less control of a BLDC motor via three external power

N-FET half bridges, with only a few external components. The high side N-FET driver is built with a bootstrap output

stage. Reverse polarity protection of the bridge is realized with an external power N-FET. An external temperature

sensor is connected to the 10 bit ADC via pin IO1. The integrated window watchdog is monitoring application integrity.

The communication interface can be either LIN or PWM interface. Pins LIN and IOHV can be used as wake-up sources

and furthermore pin LIN will be also used to program the Flash memory.

application requirements