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Description

The bq24153A / BQ24156A / BQ24158 / BQ24159 is a compact, flexible, high-efficiency, USB-friendly switch-mode charge management device for single-cell Li-ion and Li-polymer batteries used in a wide range of portable applications. The charge parameters can be programmed through an I2C interface. The IC integrates a synchronous PWM controller,power MOSFETs, input current sensing, high-accuracy current and voltage regulation, and charge termination,into a small WCSP package.

Features

• Charge Faster than Linear Chargers
• High-Accuracy Voltage and Current Regulation
– Input Current Regulation Accuracy: ±5% (100 mA and 500 mA)
– Charge Voltage Regulation Accuracy: ±0.5% (25°C), ±1% (0°C to 125°C)
– Charge Current Regulation Accuracy: ±5%
• Input Voltage Based Dynamic Power Management (VIN DPM)
• Bad Adaptor Detection and Rejection
• Safety Limit Register for Maximum Charge Voltage and Current Limiting
• High-Efficiency Mini-USB/AC Battery Charger for Single-Cell Li-Ion and Li-Polymer Battery Packs
• 20-V Absolute Maximum Input Voltage Rating
• 9-V Maximum Operating Input Voltage-bq24156A/9
• 6-V Maximum Operating Input Voltage-bq24153A/8
• Built-In Input Current Sensing and Limiting
• Integrated Power FETs for Up To 1.5-A Charge Rate-bq24156A/9, 1.25A-bq24153A/8
• Programmable Charge Parameters through I2C™ Compatible Interface (up to 3.4 Mbps):
– Input Current Limit
– VIN DPM Threshold
– Fast-Charge/Termination Current
– Charge Regulation Voltage (3.5 V to 4.44 V)
– Low Charge Current Mode Enable/Disable
– Safety Timer with Reset Control
– Termination Enable/Disable

Applications :

• Mobile and Smart Phones
• MP3 Players
• Handheld Devices

https://www.ti.com/product/BQ24153A