SLDS182A August 2010 – July 2015 TPIC7218-Q1
PRODUCTION DATA.
The TPIC7218-Q1 device requires three power supply input pins – (1) VBAT connected to the automotive battery, (2) VDD connected to a 5-V regulated output from the battery and (3) VIO which can be optionally connected to VDD or a 3.3-V regulated output. TI recommends that all power supply pins have decoupling capacitors. Use good circuit board layout techniques to ensure each capacitor provides instantaneous peak current to the TPIC7218-Q1 device. Care must be taken to avoid parasitic impedances which can degrade decoupling performance. Poorly decoupled power pins are likely to cause unsatisfactory EMC performance. TI recommends the following capacitor values: