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Frequent questions

  • [FAQ] BQ25720: How does BQ25720 charge a battery?

    Part Number: BQ25720 In other word, what is the battery charge profile?

  • [FAQ] BQ25720EVM: How to get the Altium design files?

    Part Number: BQ25720EVM Other Parts Discussed in Thread: BQ25720 , PMP22419 , BQ25731EVM , BQ25723EVM , BQ25730EVM To speed up the design, I would like to get the Altium design files.

  • [FAQ] TPS65220: TPS6522053RHBR schematic review for AM64x

    Part Number: TPS65220 Other Parts Discussed in Thread: TPS65219 , Hi, Please find attached the TPS65219 Schematic and Layout Checklist. We use PMIC, TPS6522053RHBR along with TPS22965DSGT in one of our products. Could you please review the schematics…

  • [FAQ] TPS23730: Using TPS23730 in PoE++

    Part Number: TPS23730 Other Parts Discussed in Thread: TPS23880 My customer is testing a PD board they designed using the TPS23730. The PSE board will use commercial products. Is there a difference in connection between the 802.3bt board and the POE…

  • [FAQ] Some 25.5-W PoE PD Controllers & Their Key Features

    Other Parts Discussed in Thread: TPS2378 , TPS2379 , TPS23751 , TPS23752 , TPS23754 , TPS23756 , TPS23731 , TPS23734 TPS2378/9 (PD only): - Compliance to IEEE 802.3at - 0.5-Ohm typ. hotswap - TPS2378 has adapter higher priority, TPS2379 has gate…

  • [FAQ] BQ25620: Does the BQ2562x device store my register configuration?

    Part Number: BQ25620 The BQ2562x family of charger ICs can be configured to operate in a variety of ways via I2C communication. They can also operate in 'default mode' without host control. The BQ2562x family of devices does not have non-volatile…

  • [FAQ] BQ25620: How does QON pin function work and what is required hold low timing?

    Part Number: BQ25620 The QON pin on the BQ2562x family of devices has 2 functions, which are both controlled by pulling QON low for a certain amount of time. These 2 functions are exit ship mode (i.e. BATFET enable) and system power reset. The timing…

  • [FAQ] Comparison between DCM output voltage ripple and CCM output voltage ripple in D-CAP buck converter

    There are lots of questions asking why DCM output voltage ripple is higher than CCM ripple. This FAQ would give explanation based on D-CAP, DCAP2 and DCAP3 buck converters. The prerequisite is that on-time of DCM operation and CCM operation is same…

  • [FAQ] TPS25751: TPS25751 Application Customization Tool

    Part Number: TPS25751 Customers are interested in configuring the TPS25751 to meet their application need, where can they access the Application Customization Tool mentioned in the TPS25751EVM User Guide (see below)?

  • [FAQ] BQ25720: Low Power Mode when adapter present

    Part Number: BQ25720 Hi Expert, Want to know if enable the Low Power Mode when adapter is presented, what impact will it have? Will cause BATDRV be asserted? Far

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