GENERAL DESCRIPTION
Even higher driver output currents can be obtained as long as the total current of the device is limited. The integrated charge-pump of the AMIS-39100, which uses only one low cost external capacitor, avoids thermal runaways even if the battery voltage is low. The HS drivers withstand short to ground (even when AMIS-39100 has lost its ground connection), short to the battery and has over-current limitation. In case of a potential hazardous situation, the drivers are switched off and the diagnostic state of the HS drivers can be read out via serial peripheral interface (SPI). In case of a short to ground, the output driver is deactivated after a de-bounce time. The AMIS-39100 can be connected to a 3.3V or 5V microcontroller by means of a SPI interface. This SPI interface is used to control each of the output drivers individually (on or off) and to read the status of each individual output driver (read-back of possible error conditions). This allows the detection of error situations for each driver individually.
AMI SEMICONDUCTOR
