Hot-selling and scarce BQ24100RHLR Charger IC Lithium Ion/Polymer 20-VQFN spot stock

Product Descriptions

The  series are highly integrated Liion and Li-polymer switch-mode charge managementdevices targeted at   a wide range of   portableapplications .   The  series  offersintegrated synchronous PWM controller and powerFETs, high-accuracy current and voltage regulation,charge preconditioning,  charge status,  and chargetermination,  in a small,  thermally enhanced VQFNpackage .   The system-controlled version providesadditional  inputs for full  charge management  undersystem control .

The charges the battery in threephases: conditioning, constant current, and constantvoltage .   Charge is terminated based on userselectable minimum current  level .  A programmablecharge timer provides a safety backup for chargetermination .    The automaticallyrestarts the charge cycle if the battery voltage fallsbelow an internal   threshold .  The automatically enters sleep mode when V_CC supply isremoved .

Product Features

•   Ideal For Highly Efficient Charger Designs For

Single - , Two - , or Three-Cell Li-Ion and Li-Polymer Battery Packs

•   bq24105 Also for LiFePO4 Battery (see Using bq24105 to Charge the LiFePO4 Battery)

•   Integrated Synchronous Fixed-Frequency PWM

Controller Operating at 1.1 MHz With 0% to 100% Duty Cycle

•   Integrated Power FETs for Up To 2-A Charge Rate

•   High-Accuracy Voltage and Current Regulation

•   Available in Both Stand-Alone (Built-In Charge Management and Control) and System-Controlled

(Under System Command) Versions

•   Status Outputs for LED or Host Processor

Interface Indicates Charge-In-Progress, Charge Completion, Fault, and AC-Adapter Present Conditions

•   20-V Maximum Voltage Rating on IN and OUT Pins

•   High-Side Battery Current Sensing

•   Battery Temperature Monitoring

•   Automatic Sleep Mode for Low Power Consumption

•   System-Controlled Version Can Be Used in NiMH and NiCd Applications

•   Reverse Leakage Protection Prevents Battery Drainage

•   Thermal Shutdown and Protection

•   Built-In Battery Detection

•   Available in 20-Pin, 3.50 mm × 4.50 mm VQFN  Package

Product Applications

•   Handheld Products

•   Portable Media Players

•   Industrial and Medical Equipment

•   Portable Equipment

​

Product Specifications

Product Photos

For more product information, please download the PDF