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BQ25723

ACTIVE

I²C 1-4 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG

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BQ25730 ACTIVE I²C 1-5 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG This product is a one-cell to five-cell I2C buck-boost NVDC charge controller with power-path and 400-kHz or 800-kHz programmable switching frequency

BQ25723

ACTIVE
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Product details

Number of series cells 1, 2, 3, 4 Charge current (max) (A) 16.2 Vin (max) (V) 26 Cell chemistry Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH, SuperCap Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 19.2 Absolute max Vin (max) (V) 32 Control topology Switch-Mode Buck-boost Control interface I2C Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 125
Number of series cells 1, 2, 3, 4 Charge current (max) (A) 16.2 Vin (max) (V) 26 Cell chemistry Lead Acid, Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, NiCd, NiMH, SuperCap Battery charge voltage (min) (V) 1.024 Battery charge voltage (max) (V) 19.2 Absolute max Vin (max) (V) 32 Control topology Switch-Mode Buck-boost Control interface I2C Features IC thermal regulation, ICO (Input Current Optimization), IINDPM (Input current limit), Input OVP, Integrated ADC, Power Path, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 3.5 Rating Catalog Operating temperature range (°C) -40 to 125
WQFN (RSN) 32 16 mm² 4 x 4
  • Pin-to-pin compatible to BQ25713
  • Buck-boost narrow voltage DC (NVDC) charger for USB-C Power Delivery (PD) interface platform
    • 3.5-V to 26-V input range to charge 1- to 4-cell battery
    • Charge current up to 16.2 A/8.1 A with 128-mA/64-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Input current limit up to 10 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1 and USB Power Delivery (PD)
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Integrated Fast Role Swap (FRS) feature following USB-PD specification
    • Seamless transition between buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
  • TI patented switching frequency dithering pattern for EMI noise reduction
  • TI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast charging achieving 99% efficiency.
  • IMVP8/IMVP9 compliant system features for Intel platform
    • Enhanced Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spike following latest Intel specification
    • Comprehensive PROCHOT profile
    • Two level discharge current limit PROCHOT profile to avoid battery wire-out
    • System power monitor
  • Input and battery current monitor through dedicated pins
  • Integrated 8-bit ADC to monitor voltage, current and power
  • Battery MOSFET ideal diode operation in supplement mode to support system when adapter is fully loaded
  • Power up USB port from battery (USB OTG)
    • 3-V to 24-V OTG with 8-mV resolution
    • Output current limit up to 12.7 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
  • 800-kHz/1.2-MHz programmable switching frequency with 2.2-µH/1.0-µH inductor
  • I2C host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±3% Charge current regulation
    • ±2.5% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 32-Pin 4.0 mm × 4.0 mm WQFN
  • Pin-to-pin compatible to BQ25713
  • Buck-boost narrow voltage DC (NVDC) charger for USB-C Power Delivery (PD) interface platform
    • 3.5-V to 26-V input range to charge 1- to 4-cell battery
    • Charge current up to 16.2 A/8.1 A with 128-mA/64-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Input current limit up to 10 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
    • Support USB 2.0, USB 3.0, USB 3.1 and USB Power Delivery (PD)
    • Input Current Optimizer (ICO) to extract max input power without overloading the adapter
    • Integrated Fast Role Swap (FRS) feature following USB-PD specification
    • Seamless transition between buck, buck-boost, and boost operations
    • Input current and voltage regulation (IINDPM and VINDPM) against source overload
  • TI patented switching frequency dithering pattern for EMI noise reduction
  • TI patented Pass Through Mode (PTM) for system power efficiency improvement and battery fast charging achieving 99% efficiency.
  • IMVP8/IMVP9 compliant system features for Intel platform
    • Enhanced Vmin Active Protection (VAP) mode supplements battery from input capacitors during system peak power spike following latest Intel specification
    • Comprehensive PROCHOT profile
    • Two level discharge current limit PROCHOT profile to avoid battery wire-out
    • System power monitor
  • Input and battery current monitor through dedicated pins
  • Integrated 8-bit ADC to monitor voltage, current and power
  • Battery MOSFET ideal diode operation in supplement mode to support system when adapter is fully loaded
  • Power up USB port from battery (USB OTG)
    • 3-V to 24-V OTG with 8-mV resolution
    • Output current limit up to 12.7 A/6.35 A with 100-mA/50-mA resolution based on 5-mΩ/10-mΩ sensing resistor
  • 800-kHz/1.2-MHz programmable switching frequency with 2.2-µH/1.0-µH inductor
  • I2C host control interface for flexible system configuration
  • High accuracy for the regulation and monitor
    • ±0.5% Charge voltage regulation
    • ±3% Charge current regulation
    • ±2.5% Input current regulation
    • ±2% Input/charge current monitor
  • Safety
    • Thermal shutdown
    • Input, system, battery overvoltage protection
    • Input, MOSFET, inductor overcurrent protection
  • Package: 32-Pin 4.0 mm × 4.0 mm WQFN

The BQ25723 is a synchronous NVDC buck-boost battery charge controller to charge a 1- to 4-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters.

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 BQ25723 supports the USB On-the-Go (OTG) function from a 1- to 4-cell battery to generate an adjustable 3-V to 24-V output on VBUS with 8-mV resolution. The OTG output voltage transition slew rate can be configured to comply with the USB-PD 3.0 PPS specification.

When only a battery powers the system and no external load is connected to the USB OTG port, the BQ25723 implements the latest Intel Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During a system peak power spike, the energy stored in the input capacitors supplements the system, to prevent the system voltage from dropping below the minimum system voltage and causing a system crash.

The BQ25723 monitors adapter current, battery current, and system power. The flexibly programmed PROCHOT output goes directly to the CPU for throttle back when needed.

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 (150 kHz to 30 MHz). 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 BQ25723 is available in a 32-pin 4 mm × 4 mm WQFN package.

The BQ25723 is a synchronous NVDC buck-boost battery charge controller to charge a 1- to 4-cell battery from a wide range of input sources including USB adapter, high voltage USB-C Power Delivery (PD) sources, and traditional adapters.

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 BQ25723 supports the USB On-the-Go (OTG) function from a 1- to 4-cell battery to generate an adjustable 3-V to 24-V output on VBUS with 8-mV resolution. The OTG output voltage transition slew rate can be configured to comply with the USB-PD 3.0 PPS specification.

When only a battery powers the system and no external load is connected to the USB OTG port, the BQ25723 implements the latest Intel Vmin Active Protection (VAP) feature, in which the device charges up the VBUS voltage from the battery to store some energy in the input decoupling capacitors. During a system peak power spike, the energy stored in the input capacitors supplements the system, to prevent the system voltage from dropping below the minimum system voltage and causing a system crash.

The BQ25723 monitors adapter current, battery current, and system power. The flexibly programmed PROCHOT output goes directly to the CPU for throttle back when needed.

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 (150 kHz to 30 MHz). 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 BQ25723 is available in a 32-pin 4 mm × 4 mm WQFN package.
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Type Title Date
* Data sheet BQ25723 I2C 1- to 4-Cell Narrow VDC Buck-Boost Battery Charge Controller With System Power Monitor and Processor Hot Monitor datasheet PDF | HTML 25 May 2021
Application note Layout Guide for Buck-Boost Charger BQ257XX Series PDF | HTML 30 Jan 2024
Certificate BQ25723EVM EU Declaration of Conformity (DoC) 31 May 2021
User guide BQ25720, BQ25723 Evaluation Module PDF | HTML 19 May 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

BQ25723EVM — BQ25723 evaluation module I²C, 1- to 4-cell, 8-A, NVDC buck-boost battery charge controller

The BQ25723EVM evaluation module (EVM) is an I2C controlled narrow voltage DC (NVDC) buck-boost charge controller with N-channel MOSFET selector and current monitoring. The input voltage range for the buck converter is between 3.5 V and 26 V, with a programmable output of 1 to 4 cells and a charge (...)
User guide: PDF | HTML
Not available on TI.com
Application software & framework

BQSTUDIO-STABLE — Battery Management Studio (bqStudio) Software – stable version downloads for bq series of TI battery fuel gauges

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Battery monitors & balancers
BQ76942 — 3-series to 10-series multicell battery monitor and protector BQ76952 — 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
Battery charger ICs
BQ24800 — SMBus 1-4 cell Buck battery charge controller to support hybrid power boost and battery boost mode BQ25720 — SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25723 — I²C 1-4 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25731 — I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support BQ25790 — Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger BQ25792 — I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
Battery fuel gauges
BQ27220 — Single cell pack/system-side CEDV battery fuel (gas) gauge w/pre-programmed chemistry profiles BQ27320 — Single cell pack/System-side CEDV battery fuel (gas) gauge BQ27425-G1 — System-side Impedance Track™; fuel gauge with direct battery connection | gas gauge battery BQ27425-G2A — System-side Impedance Track™; fuel gauge for LiCoO2 battery BQ27425-G2B — System-side Impedance Track™; fuel gauge LiMn2O4 battery BQ27520-G4 — System side Impedance Track™ fuel gauge with integrated LDO. BQ27530-G1 — System-side Impedance-Track fuel (gas) gauge with direct battery connection BQ27531-G1 — Battery management unit Impedance Track™ fuel (gas) gauge for bq2419x charger controller BQ27532-G1 — Battery management unit Impedance Track™ fuel gauge for bq2425x charger BQ27545-G1 — Single cell, pack side, Impedance Track™ fuel gauge BQ27546-G1 — Single cell Impedance Track™ pack side fuel gauge with DSBGA package BQ27621-G1 — System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge BQ27741-G1 — Pack-side Impedance Track™(tm) fuel (gas) gauge with integrated protector BQ27742-G1 — Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge BQ27Z561 — Impedance Track™ integrated circuit gas gauge solution for 1-series BQ28Z610 — Battery fuel gauge with integrated protector for 1-2 series packs BQ34110 — Multi-chemistry high-cell Count battery fuel gauge with integrated rarely discharged module BQ34210-Q1 — Automotive Qualified Single cell system-side CEDV fuel gauge BQ34Z100-G1 — Multi-chemistry Impedance Track™ standalone fuel gauge | battery gas gauge BQ35100 — Battery fuel gauge for non-rechargeable batteries (lithium primary) and end-of-service monitor BQ4050 — 1-4 series CEDV battery fuel (gas) gauge BQ40Z50 — 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge BQ40Z50-R1 — 1-4 series Li-ion battery pack manager supporting Turbo Mode 1.0 BQ40Z50-R2 — 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0 BQ40Z60 — Complete multi-cell battery manager | battery fuel (gas) gauge BQ40Z80 — 2-s to 6-s battery pack manager with Impedance Track™ gas gauging BQ78350 — Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 — CEDV li-ion gas gauge and battery management controller BQ78Z100 — Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Download options
Application software & framework

BQSTUDIO-TEST — Battery Management Studio (bqStudio) Software – Beta version downloads

Battery Management Studio (bqStudio) offers a full suite of robust tools to assist with the process of evaluating, designing with, configuring, testing, or otherwise utilizing TI Battery management products. This includes features that provide full access to registers and data memory including (...)

lock = Requires export approval (1 minute)
Supported products & hardware

Supported products & hardware

Products
Battery monitors & balancers
BQ769142 — 3-s to 14-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4 battery BQ76942 — 3-series to 10-series multicell battery monitor and protector BQ76952 — 3-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4
Battery charger ICs
BQ24800 — SMBus 1-4 cell Buck battery charge controller to support hybrid power boost and battery boost mode BQ25720 — SMBus 1- to 4-cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25723 — I²C 1-4 cell NVDC buck-boost battery charge controller with power path and USB-C® PD OTG BQ25731 — I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support BQ25756 — Stand-alone or I²C controlled 70-V bidirectional buck-boost charge controller with MPPT BQ25790 — Integrated, NVDC, 5-A 1-cell to 4-cell switch-mode buck-boost battery charger BQ25792 — I2C controlled, 5-A, 1-4 cell buck-boost charger with dual-input selector and USB PD 3.0 OTG output
Battery fuel gauges
BQ27220 — Single cell pack/system-side CEDV battery fuel (gas) gauge w/pre-programmed chemistry profiles BQ27320 — Single cell pack/System-side CEDV battery fuel (gas) gauge BQ27425-G1 — System-side Impedance Track™; fuel gauge with direct battery connection | gas gauge battery BQ27425-G2A — System-side Impedance Track™; fuel gauge for LiCoO2 battery BQ27425-G2B — System-side Impedance Track™; fuel gauge LiMn2O4 battery BQ27427 — Single-cell battery fuel gauge with pre-programmed chemistry and integrated sense resistor BQ27510-G3 — System-side Impedance-Track fuel gauge that provides 32 bytes of user-programmable data Flash memory BQ27520-G4 — System side Impedance Track™ fuel gauge with integrated LDO. BQ27530-G1 — System-side Impedance-Track fuel (gas) gauge with direct battery connection BQ27531-G1 — Battery management unit Impedance Track™ fuel (gas) gauge for bq2419x charger controller BQ27532-G1 — Battery management unit Impedance Track™ fuel gauge for bq2425x charger BQ27541-G1 — Pack-side Impedance Track™ battery fuel gauge with integrated LDO BQ27541-V200 — Single cell Li-ion battery fuel gauge for battery pack Integration; FW upgrade to BQ27541 BQ27542-G1 — Single cell Impedance Track™ pack side fuel gauge with SON package BQ27545-G1 — Single cell, pack side, Impedance Track™ fuel gauge BQ27546-G1 — Single cell Impedance Track™ pack side fuel gauge with DSBGA package BQ27621-G1 — System-side fuel gauge with Dynamic Voltage Correlation, battery gas gauge BQ27741-G1 — Pack-side Impedance Track™(tm) fuel (gas) gauge with integrated protector BQ27742-G1 — Single cell Li-ion battery fuel gauge with integrated protection | battery gas gauge BQ27Z561 — Impedance Track™ integrated circuit gas gauge solution for 1-series BQ27Z746 — Pack-side, single-cell Impedance Track™ technology fuel gauge with integrated protector BQ28Z610 — Battery fuel gauge with integrated protector for 1-2 series packs BQ34110 — Multi-chemistry high-cell Count battery fuel gauge with integrated rarely discharged module BQ34210-Q1 — Automotive Qualified Single cell system-side CEDV fuel gauge BQ34Z100-G1 — Multi-chemistry Impedance Track™ standalone fuel gauge | battery gas gauge BQ35100 — Battery fuel gauge for non-rechargeable batteries (lithium primary) and end-of-service monitor BQ4050 — 1-4 series CEDV battery fuel (gas) gauge BQ40Z50 — 1-4 series Li-ion battery pack manager | battery fuel (gas) gauge BQ40Z50-R1 — 1-4 series Li-ion battery pack manager supporting Turbo Mode 1.0 BQ40Z50-R2 — 1-4 series Li-ion battery pack manager supporting Turbo Mode 2.0 BQ40Z60 — Complete multi-cell battery manager | battery fuel (gas) gauge BQ40Z80 — 2-s to 6-s battery pack manager with Impedance Track™ gas gauging BQ78350 — Companion CEDV Fuel Gauge Battery Management Controller for bq76940 Monitor Family BQ78350-R1 — CEDV li-ion gas gauge and battery management controller BQ78Z100 — Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series
Hardware development
MKST-3P-ALT-EV2300 — MKS Technology alternative for EV2300 communications transceiver
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WQFN (RSN) 32 View options
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