BQ24292I Datasheet, PDF (1/42 Pages) Texas Instruments – I2C Controlled 4.5A Single Cell USB/Adapter Charger With Narrow VDC Power Path Management and USB OTG

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I²C Controlled 4.5A Single Cell USB/Adapter Charger
With Narrow VDC Power Path Management and USB OTG
Check for Samples: bq24292i
bq24292i
SLUSBI4 – APRIL 2013
FEATURES
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•2 High Efficiency 4.5A Switch Mode Charger
– 92% Charge Efficiency at 2A, 90% at 4A
– Accelerate Charge Time by Battery Path
Impedance Compensation
• Highest Battery Discharge Efficiency with
12mΩ Battery Discharge MOSFET up to 9A
Discharge Current
• Single Input USB-compliant/Adapter Charger
– Support USB Detection Compatible to USB
Battery Charger Spec 1.2
– Input Voltage and Current Limit Supports
USB2.0 and USB 3.0
– Input Current Limit: 100mA, 150mA, 500mA,
900mA, 1.2A, 1.5A, 2A and 3A
• 3.9V–17V Input Operating Voltage Range
– Support All Kinds of Adapter with Input
Voltage DPM Regulation
• Support USB On-The-Go Standard with 5V at
1.3A Synchronous Boost Converter Operation
– 93% 5V Boost Efficiency at 1A
– Fast OTG Startup (22ms typ.)
– Hiccup Mode Overcurrent Protection
• Narrow VDC (NVDC) Power Path Management
– Instant-on Works with No Battery or Deeply
Discharged Battery
– Ideal Diode Operation in Battery
Supplement Mode
• 1.5MHz Switching Frequency for Low Profile
Inductor
• Autonomous Battery Charging with or without
Host Management
– Battery Charge Enable
– Battery Charge Preconditioning
– Charge Termination and Recharge
• High Accuracy (0°C to 125°C)
– ±0.5% Charge Voltage Regulation
– ±7% Charge Current Regulation
– ±7.5% Input Current Regulation
– ±2% Output Regulation in Boost Mode
• High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Bootstrap Diode
– Internal Loop Compensation
• Safety
– Battery Temperature Sensing and Charging
Safety Timer
– Thermal Regulation and Thermal Shutdown
– Input System Over-Voltage Protection
– MOSFET Over-Current Protection
• Charge Status Outputs for LED or Host
Processor
• Low Battery Leakage Current and Support
Shipping Mode
• 4mm x 4mm QFN-24 Package
APPLICATIONS
• Tablet PC
• Smart Phone
• Portable Audio Speaker
• Portable Media Players
• Internet Devices
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated