Hot-selling and scarce BQ24192IRGER I2C Controlled 4.5A Single Cell USB/Adapter Charger QFN spot stock

Product Descriptions

The bq24190, bq24192, bq24192I, and bq24193 are highly-integrated switch-mode battery charge management and system power path management devices for single cell Li-Ion and Li-polymer battery in a wide range of tablet and other portable devices. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I 2C serial interface with charging and system settings makes the device a truly flexible solution.

The device supports a wide range of input sources, including standard USB host port, USB charging port and high power DC adapter. To set the default input current limit, the bq24190 detects the input source following the USB battery charging spec 1.2, and the bq24192, bq24192I, and bq24193 takes the results from detection circuit in the system, such as USB PHY device. The bq24190,192,192I, and 193 are compliant with USB 2.0 and USB 3.0 power specifications with input current and voltage regulation. Meanwhile, the bq24190, bq24192, bq24192I, and bq24193 meets USB On-the-Go operation power rating specification by supplying 5V on the VBUS with a current limit up to 1.3A.

The power path management regulates the system slightly above battery voltage but does not drop below 3.5V minimum system voltage (programmable). With this feature, the system maintains operation even when the battery is completely depleted or removed. When the input current limit or voltage limit is reached, the power path management automatically reduces the charge current to zero. As the system load continues to increase, the power path discharges the battery until the system power requirement is met. This supplement mode operation prevents overloading the input source.

Product Features

• High Efficiency 4.5A Switch Mode Charger

– 92% Charge Efficiency at 2A, 90% at 4A

– Accelerate Charge Time by Battery Path Impedance Compensatioin

• Highest Battery Discharge Efficiency with 12mΩ Battery Discharge MOSFET up to 9A Discharge Current

• Single Input USB-compliant/Adapter Charger

.– USB Host or Charging Port D+/D- 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

• USB OTG 5V at 1.3A Synchronous Boost Converter Operation

– 93% 5V Boost Efficiency at 1A

• 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

• 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

– JEITA Guideline Compliant (bq24193)

– 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

Product Applications

• Tablet PC

• Smart Phone

• Portable Audio Speaker

• Portable Media Players

• Internet Devices 

Product Specification

Product Photos

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