Home Battery management ICs Battery charger ICs
Home
Battery management ICs
Battery charger ICs

BQ24620

ACTIVE

Standalone 1-7 cell Buck battery charge controller for Lithium phosphate batteries

Order now
Data sheet

BQ24620

ACTIVE
Data sheet Order now

Product details

Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Lithium Phosphate/LiFePO4 Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
Rating Catalog Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Lithium Phosphate/LiFePO4 Charge current (max) (A) 10 Features BAT temp thermistor monitoring (hot/cold profile) Vin (min) (V) 5 Vin (max) (V) 28 Absolute max Vin (max) (V) 33 Control topology Switch-Mode Buck Battery charge voltage (min) (V) 1.8 Battery charge voltage (max) (V) 26 Control interface Standalone (RC-Settable) Operating temperature range (°C) -40 to 85
VQFN (RVA) 16 12.25 mm² 3.5 x 3.5
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Designed Specifically for
    Lithium Phosphate
  • 5-V to 28-V VCC Operating Range, Supports 1 to
    7 Battery Cells
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
  • Integration
    • Internal Loop Compensation
    • Internal Soft Start
  • Safety
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold Charge Suspend and Automatically
      ICHARGE/8 at WARM/COOL
    • Battery Detection
    • Built-In Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead Time and 99.95% Maximum
    Effective Duty Cycle
  • 16-Pin 3.5-mm × 3.5-mm QFN Package
  • Energy Star Low Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tools and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbooks, Mobile Internet Devices, and
      Ultramobile PCs

All other trademarks are the property of their respective owners
  • 300-kHz NMOS-NMOS Synchronous Buck
    Converter
  • Stand-Alone Charger Designed Specifically for
    Lithium Phosphate
  • 5-V to 28-V VCC Operating Range, Supports 1 to
    7 Battery Cells
  • High-Accuracy Voltage and Current Regulation
    • ±0.5% Charge Voltage Accuracy
    • ±3% Charge Current Accuracy
  • Integration
    • Internal Loop Compensation
    • Internal Soft Start
  • Safety
    • Input Overvoltage Protection
    • Battery Thermistor Sense Suspend Charge at
      Hot/Cold Charge Suspend and Automatically
      ICHARGE/8 at WARM/COOL
    • Battery Detection
    • Built-In Safety Timer
    • Charge Overcurrent Protection
    • Battery Short Protection
    • Battery Overvoltage Protection
    • Thermal Shutdown
  • Status Outputs
    • Adapter Present
    • Charger Operation Status
  • Charge Enable Pin
  • 6-V Gate Drive for Synchronous Buck Converter
  • 30-ns Driver Dead Time and 99.95% Maximum
    Effective Duty Cycle
  • 16-Pin 3.5-mm × 3.5-mm QFN Package
  • Energy Star Low Iq
    • < 15-µA Off-State Battery Discharge Current
    • < 1.5-mA Off-State Input Quiescent Current
  • APPLICATIONS
    • Power Tools and Portable Equipment
    • Personal Digital Assistants
    • Handheld Terminals
    • Industrial and Medical Equipment
    • Netbooks, Mobile Internet Devices, and
      Ultramobile PCs

All other trademarks are the property of their respective owners

The bq24620 device is a highly integrated lithium phosphate switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring.

The bq24620 charges the battery in three phases: preconditioning, constant current, and constant voltage.

The bq24620 device is a highly integrated lithium phosphate switched-mode battery charge controller. The device offers a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation, charge preconditioning, termination, and charge status monitoring.

The bq24620 charges the battery in three phases: preconditioning, constant current, and constant voltage.
filter Find other Battery charger ICs
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 3
Type Title Date
* Data sheet bq24620 Stand-Alone Synchronous Switched-Mode Lithium Phosphate Battery Charger With Low Iq datasheet (Rev. B) PDF | HTML 17 Jun 2015
Application note BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31 Dec 2019
User guide Multi Cell Synchronous Switch-Mode Charger, EVM (HPA421) 18 Feb 2010

Design & development

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

Evaluation board

BQ24620EVM — Evaluation Module for BQ24620 Multi Cell Synchronous Switch-Mode Charger

Evaluation Module for bq24600/bq24620/bq24640. the bq24600 is a highly integrated Li-ion or Li-polymer switch-mode battery charge controller. The bq24620 is highly integrated switch-mode battery charge controller designed specifically to charge Lithium Phosphate battery chemistries. The bq24640 is (...)

User guide: PDF
Not available on TI.com
Calculation tool

SLUC175 — bq246xx Calculation Tool V1.5

Supported products & hardware

Supported products & hardware

Products
Battery charger ICs
  • BQ24600 — Standalone 1-6 cell Buck battery charge controller
  • BQ24610 — Standalone 1-6 cell Buck battery charge controller with 5V-28V input
  • BQ24616 — Standalone 1-6 cell Buck battery charge controller with JEITA compliance
  • BQ24617 — Standalone 1-5 cell Buck battery charge controller with 5V-24V input
  • BQ24618 — Standalone 1-6 cell Buck battery charge controller USB friendly with 5V-28V input
  • BQ24620 — Standalone 1-7 cell Buck battery charge controller for Lithium phosphate batteries
  • BQ24630 — Standalone 1-7 cell Buck battery charge controller for LiFePO4 batteries with system power
  • BQ24640 — Standalone 1-8 cell Buck battery charge controller for super capacitor
  • BQ24650 — Standalone 1-6 cell Buck battery charge controller with solar input and integrated MPPT
Download
Package Pins CAD symbols, footprints & 3D models
VQFN (RVA) 16 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos