BQ24153 Datasheet, PDF (1/40 Pages) Texas Instruments – Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support

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Fully Integrated Switch-Mode One-Cell Li-Ion Charger
With Full USB Compliance and USB-OTG Support
Check for Samples: bq24153, bq24156, bq24158
bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
FEATURES
1
•2 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
• 9.0-V Maximum Operating Input
Voltage-bq24156
• 6-V Maximum Operating Input
Voltage-bq24153/8
• Built-In Input Current Sensing and Limiting
• Integrated Power FETs for Up To 1.5-A Charge
Rate-bq24156, 1.25A-bq24153/8
• 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
• 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
• Boost Mode Operation for USB OTG:
(bq24153/8 only)
– Input Voltage Range (from Battery): 2.5 V to
4.5 V
– Output for V_BUS: 5.05 V/ 200 mA
• 2.1 mm x 2 mm 20-Pin WCSP Package
APPLICATIONS
• Mobile and Smart Phones
• MP3 Players
• Handheld Devices
Typical Application Circuit
V_BUS
C_IN
1 µF
VBUS
SW
U1
bq24153/8
VAUX
10 kΩ 10 kΩ
C_IN
PMID
4.7
µF
BOOT
PGND
CSIN
L_O 1 µH
C_BOOT
10 nF
V_SNS
C_SIN
0.1 µF
SCL
10 kΩ
SCL
CSOUT
SDA
STAT
OTG
10 kΩ
HOST
CD
10 kΩ
SDA
STAT
OTG
CD
VREF ^CVREF
1 µF
C_SOUT
0.1 µF
V_BAT
C_O1 C_O2
10 µF 10 µF
PACK+
+
PACK–
DESCRIPTION
The bq24153/6/8 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.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I²C is a trademark of Philips Electronics.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated