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BQ24296MRGER 2A Single-Cell Li-Ion Charger with 3.9V-6.2V Input I2C Control Thermal Regulation 20V OVP and 3mm×3mm QFN Package
Features
• 90%High Efficiency Switch Mode 3-A Charger
• 3.9-V to 6.2-V Single Input USB-Compliant Charger with 6.4-V Over-Voltage Protection
– Input voltage and current limit supports USB 2.0 and USB 3.0
– Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA, 1 A, 1.5 A, 2 A, and 3 A
• USBOTGwith Adjustable output 4.55 V to 5.5 V at 1 A or 1.5 A
– Fast OTG Startup (22 ms Typ)
– 90%5-VBoost Mode Efficiency
– Accurate ±15% Hiccup Mode Overcurrent Protection
• Narrow VDC (NVDC) Power Path Management
– Instant System On with No Battery or Deeply Discharged Battery
– Ideal Diode Operation in Battery Supplement Mode
• 1.5-MHz Switching Frequency for Low Profile 1.2 mmInductor
• I2C port for optimal system performance and status reporting
• Autonomous Battery Charging with or without Host Management
– Battery Charge Enable
– Battery Charge Preconditioning
– Charge Termination and Recharge
• High Accuracy
– ±0.5% Charge Voltage Regulation
– ±7%Charge Current Regulation
– ±7.5% Input Current Regulation
– ±3%Output Voltage Regulation in USB OTG Boost Mode
• High Integration
– Power Path Management
– Synchronous Switching MOSFETs
– Integrated Current Sensing
– Bootstrap Diode
– Internal Loop Compensation
• Safety
– Battery Temperature Sensing for Charging and Discharging in OTG Mode
– Battery Charging Safety Timer
– Thermal Regulation and Thermal Shutdown
– Input and System Over-Voltage Protection
– MOSFETOver-Current Protect
• Charge Status Outputs for LED or Host Processor
• Maximum power tracking capability by input voltage regulation
• 20-µA Low Battery Leakage Current and Support Shipping Mode
• 4-mmx4-mmVQFN-24 Package
Applications
• Tablet PC, Smart Phone, Internet Devices
• Portable Audio Speaker
Description
The bq24296M is a highly-integrated switch-mode battery charge management and system power path management device for 1 cell Li-Ion and Li-polymer battery in a wide range of smart phone and tablet applications. Its low impedance power path optimizes switch-mode operation efficiency, reduces battery charging time and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution.
INFORMATION
| Category | | |
| Manufacturer | Texas Instruments | |
| Series | - | |
| Packaging | Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | |
| Part Status | Active | |
| Battery Chemistry | Lithium Ion/Polymer | |
| Number of Cells | 1 | |
| Current - Charging | Constant - Programmable | |
| Programmable Features | - | |
| Fault Protection | Over Current, Over Temperature, Over Voltage | |
| Charge Current - Max | 3A | |
| Battery Pack Voltage | 4.2V | |
| Voltage - Supply (Max) | 6.2V | |
| Interface | I2C | |
| Operating Temperature | -40°C ~ 85°C (TA) | |
| Mounting Type | Surface Mount | |
| Package / Case | 24-VFQFN Exposed Pad | |
| Supplier Device Package | 24-VQFN (4x4) | |
| Base Product Number |
Drawing
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