Other Parts Discussed in Thread: TMS320C6742, OMAP-L137
Hi,
I have several questions about TPS65910.
Figure 1-1:
1 Does DGND/AGND/AGND2/GND3 connect inside the TPS65910, and then connect with GNDP?
2 GNDA and REFGND does not connect with GNDP. How to connect GNDA, REFGND and GNDP in design or on the PCB?
The recommended connection between TPS65910 and C6748 is as Figure 2 below.
3 There are three kinds of GND: REFGND, POWERPAD and Unknown GND. If this design is recommended, how to connect the three kinds of GND.
4 In this design, the button of PWRON must be pressed to power up. How to avoid this button in design so that the TPS65910 could power up immediately when VBAT is on.
Best Regards,
Kevin Clooney