ZHCSJB5B September 2019 – December 2019 DRV8904-Q1 , DRV8906-Q1 , DRV8908-Q1 , DRV8910-Q1 , DRV8912-Q1
UNLESS OTHERWISE NOTED, this document contains PRODUCTION DATA.
The DRV89xx-Q1 can alternatively be used for the mirrors targeting the mirror-fold, mirror x-y direction control and side indicator LED's as shown in Figure 135.
The half-bridges are connected in parallel to support the higher current requirement of the mirror fold application. Whereas, single half-bridges can be used for driving the low-current motors used for the mirror X and Y positioning. Moreover, the LED's used in side indicators, puddle lamp is lower current which can be easily driven by single half-bridges.
The driver is powered by the automotive battery with a 3.3-V regulated power supply generated for the supplying power to the digital pin (VDD). A micro-controller is connected to the DRV89XX-Q1 device with the SPI interface (4-lines) for control, configuration and diagnostics. The device operating or sleep state is controlled by the nSLEEP pin and nFAULT pins is used as an additional hardware diagnostics.
Figure 135. Alternative Application Schematic (Automotive Side-Mirror Application)