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BQ24153A Даташит - Texas Instruments

Номер в каталогеОписание (Функция)производитель
BQ24153A Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support TI
Texas Instruments TI
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BQ24153A Datasheet PDF : BQ24153A pdf   
BQ24153A image

Description
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.

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 1.55-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 x 2 mm 20-Pin WCSP Package

Applications
• Mobile and Smart Phones
• MP3 Players
• Handheld Devices

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