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Partno	Mfg	Dc	Qty	Available	Descript
BQ24152YFFR	TI	N/a	50000	avai	Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support 20-DSBGA -40 to 85

BQ24152YFFR ,Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support 20-DSBGA -40 to 85This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated cir ..
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BQ24152YFFR
Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and USB-OTG Support
1.0Hm10nF
CBOOT
bq24152
VBUS
VBUS
CINFm
10mF
RSNS
bq24152
www.ti.com SLUS847A –JUNE 2008–REVISED JANUARY 2010
Fully Integrated Switch-Mode One-Cell Li-Ion Charger with Full USB Compliance and
USB-OTG Support
Checkfor Samples: bq24152
1FEATURES Charge Faster than Linear Chargers 4.5V High-Accuracy Voltage and Current Regulation – Output for VBUS: 5.05V/ 200 mA Input Current Regulation Accuracy: ±5% • 2x2 mm 20-Pin WCSP Package
(100 mA and 500 mA)
APPLICATIONS– Charge Voltage Regulation Accuracy: Mobile and Smart Phones±0.5% (25°C), ±1% (0°C-125°C) MP3 Players– Charge Current Regulation Accuracy: ±5% Handheld Devices• High-Efficiency Mini-USB/AC Battery Charger
for Single-Cell Li-Ion and Li-Polymer Battery DESCRIPTIONPacks
The bq24152isa compact, flexible, high-efficiency,• 20-V Absolute Maximum Input Voltage Rating
USB-friendly switch-mode charge management• 6-V Maximum Operating Input Voltage device for Li-ion and Li-polymer batteries• Built-In Input Current Sensing and Limiting usedina rangeof portable applications. The Integrated Power FETs for Up To 1.25-A charge parameters can be programmed through an2C interface. The bq24152 integratesa synchronousCharge Rate
PWM controller, power MOSFETs, input current• Programmable Charge Parameters through sensing, high-accuracy current and voltageI2 C™ Interface (upto 3.4 Mbps): regulation, and charge termination, intoa small– Input Current WCSP package. Fast-Charge/Termination Current The bq24152 charges the batteryin three phases:– Charge Voltage (3.5Vto 4.44V) conditioning, constant current and constant voltage.
The input currentis automatically limitedto the value– Safety Timer with Reset Control set by the host. Chargeis terminated based on– Termination Enable user-selectable minimum current level.A safety timer• Synchronous Fixed-Frequency PWM with reset control providesa safety backup forI2CController Operatingat3 MHz with 0%to interface. During normal operation, bq24152 automatically restarts the charge cycleif the battery
voltage falls below an internal threshold and automatically enters sleep modeor high impedance mode when the input supplyis removed. The charge statusis reportedto the host using theI2C interface.
Typical Application Circuit
Not Recommended For New Designs

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