BQ24104RHLR Datasheet PDF - TI

●DESCRIPTION

●The bqSWITCHER™ series are highly integrated Li-ion and Li-polymer switch-mode charge management devices targeted at a wide range of portable applications. The bqSWITCHER™ series offers integrated synchronous PWM controller and power FETs, high-accuracy current and voltage regulation, charge preconditioning, charge status, and charge termination, in a small, thermally enhanced QFN package. The system-controlled version provides additional inputs for full charge management under system control.

●FEATURES

●• Ideal For Highly Efficient Charger Designs For Single-, Two- or Three-Cell Li-Ion and Li-Polymer

●Battery Packs

●• 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 Current Sensing

●• Optional Battery Temperature Monitoring

●• Automatic Sleep Mode for Low Power Consumption

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

●• Uses Ceramic Capacitors

●• Reverse Leakage Protection Prevents Battery Drainage

●• Thermal Shutdown and Protection

●• Built-In Battery Detection

●APPLICATIONS

●• Handheld Products

●• Portable Media Players

●• Industrial and Medical Equipment

●• Portable Equipment