The bq24153A/6A/8/9 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.

The IC charges the battery in three phases: conditioning, constant current and constant voltage. The input current is automatically limited to the value set by the host. Charge is terminated based on battery voltage and user-selectable minimum current level. A safety timer with reset control provides a safety backup for I²C interface. During normal operation, The IC automatically restarts the charge cycle if the battery voltage falls below an internal threshold and automatically enters sleep mode or high impedance mode when the input supply is removed. The charge status can be reported to the host using the I²C interface. During the charging process, the IC monitors its junction temperature (TJ) and reduces the charge current once TJ increases to about 125°C. To support USB OTG device, bq24153A/8 can provide VBUS (5.05 V) by boosting the battery voltage. The IC is available in 20-pin WCSP package.

• 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 1.55-A Charge Rate
• 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
• Support up to 1.55 A Charge Current Using 55- mΩ Sensing Resistor
• Synchronous Fixed-Frequency PWM Controller Operating at 3 MHz With 0% to 99.5% Duty Cycle
• Automatic High Impedance Mode for Low Power Consumption
• Robust Protection
  • Reverse Leakage Protection Prevents Battery Drainage
  • Thermal Regulation and Protection
  • Input/Output Overvoltage Protection
• Status Output for Charging and Faults
• USB Friendly Boot-Up Sequence
• Automatic Charging
• Power Up System without Battery bq24158/9
• Boost Mode Operation for USB OTG: (bq24153A/8 only)
  • Input Voltage Range (from Battery): 2.5 V to 4.5 V
  • Output for VBUS: 5.05 V/ 200 mA
• 2.1 mm × 2 mm 20-Pin WCSP Package

APPLICATIONS

• Mobile and Smart Phones
• MP3 Players
• Handheld Devices

• Number of series cells
• 1
• Charge current (Max) (A)
• 1.55
• Operating Vin (Max) (V)
• 9
• Cell chemistry
• Li-Ion/Li-Polymer
• Battery charge voltage (Min) (V)
• 3.5
• Battery charge voltage (Max) (V)
• 4.44
• Absolute Vin (safety rating) (Max) ((V))
• 20
• Control interface
• I2C
• Features
• BAT temp thermistor monitoring (JEITA profile), Power Path
• Operating Vin (Min) (V)
• 4
• Rating
• Catalog

BQ24159的完整型号有：BQ24159YFFR、BQ24159YFFT，以下是这些产品的关键参数及官网采购报价：

BQ24159YFFR，工作温度：-40 to 85，封装：DSBGA (YFF)-20，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网BQ24159YFFR的批量USD价格：2.128（1000+）

BQ24159YFFT，工作温度：-40 to 85，封装：DSBGA (YFF)-20，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网BQ24159YFFT的批量USD价格：2.498（1000+）

BQ24153A_6A_7B_8_9EVM_SW — BQ24153A/6A/7B/8/9EVM_SW 评估软件

该软件使用 bq24153AEVM-697、bq24156AEVM-697、bq24157BEVM、bq24158EVM-697 或 BQ24159EVM-697 通过 USB-TO-GPIO 盒连接至 Windows PC，提供了基于 PC 的 GUI 接口，您可使用 I2C 通信协议与 IC 进行通信。