BQ25713 datasheet(3/111 Pages) TI2

3 / 111 page

4 Description (continued)

The NVDC configuration allows the system to be regulated based on battery voltage, but not drop below system

minimum voltage. The system keeps operating even when the battery is completely discharged or removed.

When load power exceeds input source rating, the battery goes into supplement mode and prevents the system

from crashing.

During power up, the charger sets the converter to a buck, boost, or buck-boost configuration based on the input

source and battery conditions. The charger seamlessly transitions between the buck, boost, and buck-boost

operation modes without host control.

In the absence of an input source, the BQ25730 supports the USB On-the-Go (OTG) function from a 1- to 5-cell

battery to generate an adjustable 3V to 24V output on VBUS with 8mV resolution. The OTG output voltage

transition slew rate can be configured to comply with the USB-PD 3.0 PPS specification.

The latest version of the USB-C PD specification includes Fast Role Swap (FRS) to ensure power role swapping

occurs in a timely fashion so that the device(s) connected to the dock can avoid experiencing momentary power

loss or glitching. This device integrates FRS in compliance with the PD specification.

TI patented switching frequency dithering pattern can significantly reduce EMI noise over the whole conductive

EMI frequency range (150kHz to 30MHz). Multiple dithering scale options are available to provide flexibility for

different applications to simplify EMI noise filter design.

The charger can be operated in the TI patented Pass Through Mode (PTM) to improve efficiency over the full

load range. In PTM, input power is directly passed through the charger to the system. Switching losses of the

MOSFETs and inductor core loss can be saved for high efficiency operation.

The BQ25730 is available in a 32-pin 4mm × 4mm WQFN package.

www.ti.com

BQ25730

SLUSE65A – FEBRUARY 2021 – REVISED JANUARY 2024

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BQ25713 Datasheet(PDF) 3 Page - Texas Instruments