Amilcare,
Thank you for explaining your application in more detail.
Amilcare Barca said: For my application the power supply isn't always connected but I connect it only when the battery is low. If the battery isn't low I don't use the charger... it's…
Although it is not as common to use a feed-forward capacitor on an LDO, this is what the TPS65721 recommends on page 49: "A feed-forward capacitor in parallel to the resistor from Vout to FB_LDO1 is required. Its value should be based on transient performance…
ChipChucker,
Unfortunately, I have tested this on the TPS65721EVM-516 before and have verified that DCDC1 and LDO1 of the TPS65721 cannot be disabled when AC power is applied. I understand that this should be made clear in the datasheet but the datasheet…
Joice,
A few comments here:
First of all, there are 3 IRMASKx registers (IRMASK0, IRMASK1, IRMASK2) and I would like to make sure that IRMASK0 and IRMASK1 both read back 0xFF. Assuming they both read back 0xFF and IRMASK2 is set to 0xFD, then you should…
HI,
You can connect the MODE pin to GND and then control force PWM via I2C bit F_PWM in register CONTROL0, x09.
You can leave it HIGH but, then the only way to turn on the device would be AC assertion. If the battery is removed and then inserted the…
Hi James,
Yes, the HOLD_DCDC and HOLD_LDO pins should enable and disable the rails after the PB_IN is pressed then released. Both rails should regulate to 0V after the disabling from the HOLD pins. The only exception to this is if you set the HOLD_DCDC…