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BQ24715

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SMBus 2-3 cell NVDC Buck battery charge controller with N-Channel MOSFET selectors

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Data sheet

BQ24715

ACTIVE
Data sheet Order now

Product details

Rating Catalog Number of series cells 2, 3 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 8 Features IINDPM (Input current limit), Input OVP Vin (min) (V) 6 Vin (max) (V) 24 Absolute max Vin (max) (V) 28 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 4.096 Battery charge voltage (max) (V) 14.5 Control interface SMBus Operating temperature range (°C) -20 to 125
Rating Catalog Number of series cells 2, 3 Cell chemistry Li-Ion/Li-Polymer Charge current (max) (A) 8 Features IINDPM (Input current limit), Input OVP Vin (min) (V) 6 Vin (max) (V) 24 Absolute max Vin (max) (V) 28 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 4.096 Battery charge voltage (max) (V) 14.5 Control interface SMBus Operating temperature range (°C) -20 to 125
VQFN (RGR) 20 12.25 mm² 3.5 x 3.5
  • 6-24V Input SMBus NVDC-1 2-3S Battery Charger Controller
  • System Instant-on Operation with No Battery or Deeply Discharged Battery
  • Ultra-Fast Transient Response of 100 µs
  • Ultra-Low Quiescent Current of 500 µA and High PFM Light Load Efficiency 80% at 20mA load to Meet Energy Star and ErP Lot6
  • Switching Frequency: 600kHz/800kHz/1MHz
  • Programmable System/Charge Voltage (16 mV/step), Input/Charge Current (64 mA/step) with High Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±3% Input/Charge Current Regulation
    • ±2% 40x Input/16x Discharge Current Monitor Output
  • Support Battery LEARN Function
  • Maximize CPU Performance with Deeply Discharged Battery or No Battery
  • Integrated NMOS ACFET and RBFET Driver
  • 20-pin 3.5 × 3.5 mm2 QFN Package
  • 6-24V Input SMBus NVDC-1 2-3S Battery Charger Controller
  • System Instant-on Operation with No Battery or Deeply Discharged Battery
  • Ultra-Fast Transient Response of 100 µs
  • Ultra-Low Quiescent Current of 500 µA and High PFM Light Load Efficiency 80% at 20mA load to Meet Energy Star and ErP Lot6
  • Switching Frequency: 600kHz/800kHz/1MHz
  • Programmable System/Charge Voltage (16 mV/step), Input/Charge Current (64 mA/step) with High Accuracy
    • ±0.5% Charge Voltage Regulation
    • ±3% Input/Charge Current Regulation
    • ±2% 40x Input/16x Discharge Current Monitor Output
  • Support Battery LEARN Function
  • Maximize CPU Performance with Deeply Discharged Battery or No Battery
  • Integrated NMOS ACFET and RBFET Driver
  • 20-pin 3.5 × 3.5 mm2 QFN Package

The bq24715 is a NVDC-1 synchronous battery charge controller with low quiescent current, high light load efficiency for 2S or 3S Li-ion battery charging applications, offering low component count.

The power path management allows the system to be regulated at battery voltage but does not drop below the programmable system minimum voltage.

The bq24715 provides N-channel ACFET and RBFET drivers for the power path management. It also provides driver of the external P-channel battery FET. The loop compensation is fully integrated.

The bq24715 has programmable 11-bit charge voltage, 7-bit input/charge current and 6-bit minimal system voltage with very high regulation accuracies through the SMBus communication interface.

The v monitors adapter current or battery discharge current through the IOUT pin allowing the host to throttle down CPU speed when needed.

The bq24715 provides extensive safety features for over current, over voltage and MOSFET short circuit.

The bq24715 is a NVDC-1 synchronous battery charge controller with low quiescent current, high light load efficiency for 2S or 3S Li-ion battery charging applications, offering low component count.

The power path management allows the system to be regulated at battery voltage but does not drop below the programmable system minimum voltage.

The bq24715 provides N-channel ACFET and RBFET drivers for the power path management. It also provides driver of the external P-channel battery FET. The loop compensation is fully integrated.

The bq24715 has programmable 11-bit charge voltage, 7-bit input/charge current and 6-bit minimal system voltage with very high regulation accuracies through the SMBus communication interface.

The v monitors adapter current or battery discharge current through the IOUT pin allowing the host to throttle down CPU speed when needed.

The bq24715 provides extensive safety features for over current, over voltage and MOSFET short circuit.
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Technical documentation

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Type Title Date
* Data sheet bq24715 2-3 Cell NVDC-1 Battery Charger Controller with Ultra-Fast Transient Response and High Light-Load Efficiency datasheet (Rev. B) PDF | HTML 20 Sep 2016
Analog Design Journal 4Q 2015 Analog Applications Journal 30 Oct 2015
Analog Design Journal Faster, cooler charging with dual chargers 30 Oct 2015

Design & development

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

Evaluation board

BQ24715EVM-115 — BQ24715EVM-115 Evaluation Module

SMBus Controlled NVDC-1 Charge Controller with N-CH MOSFET Selector and Current Monitoring; 2-3 Cells
User guide: PDF
Not available on TI.com
GUI for evaluation module (EVM)

SLVC024 — bq24715 EVM GUI Package

Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
  • BQ2000 — Switch-mode multi-chemistry battery charger with peak voltagedetection termination
  • BQ2000T — Switch-mode multi-chemistry battery charger with dT/dt termination
  • BQ2002 — NiCd/NiMH battery charge controller with negative dV, PVT and Top-Off Time setup1
  • BQ2002C — NiCd/NiMH battery charge controller with negative dV, PVT
  • BQ2002D — NiCd/NiMH battery charge controller with dT/dt termination
  • BQ2002E — NiCd/NiMH battery charge controller with negative dV, PVT and tMTO setup1
  • BQ2002F — NiCd/NiMH battery charge controller with negative dV, PVT and Top-Off Time setup2
  • BQ2002G — NiCd/NiMH battery charge controller with negative dV, PVT and tMTO setup2
  • BQ2002T — NiCd/NiMH battery charge controller with dT/dt termination and low-temperature fault
  • BQ2031 — Switch-mode Lead-Acid Battery Charger with User-Selectable Charge Algorithms
  • BQ2057C — Low Dropout linear 1-cell Li-ion battery charge controller with AutoCompTM, 4.2V
  • BQ2057W — Low Dropout linear 2-cell Li-ion battery charge controller with AutoCompTM, 8.4V
  • BQ24010 — 1-cell, 1-A, linear Li-ion battery charger with AC present and temp sense in QFN-11 package
  • BQ24012 — 1-cell, 1-A, linear Li-ion battery charger w/ FET, AC present & charge enable in QFN-12
  • BQ24013 — 1-cell, 1-A, linear Li-ion battery charger with charge enable & term enable in QFN-11 package
  • BQ24200 — 500-mA, 4.2-V Li-ion charger for current-Limited App. w/temp sense in MSOP-8
  • BQ24201 — 500-mA, 4.1-V Li-ion charger for current-Limited App. w/temp sense in MSOP-8
  • BQ24202 — 500-mA, 4.2-V Li-ion charger for current-Limited App. w/charge status in MSOP-8
  • BQ24203 — 500-mA, 4.1-V Li-ion charger for current-Limited App. w/charge status in MSOP-8
  • BQ24205 — 500-mA, 4.1-V Li-ion charger for current-Limited App. in MSOP-8
  • BQ24715 — SMBus 2-3 cell NVDC Buck battery charge controller with N-Channel MOSFET selectors
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VQFN (RGR) 20 Ultra Librarian
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