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BQ24153A Datasheet(PDF) 2 Page - Texas Instruments

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Part # BQ24153A
Description  Fully Integrated Switch-Mode One-Cell Li-Ion Charger
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24153A Datasheet(HTML) 2 Page - Texas Instruments

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bq24153A, bq24156A
bq24158, bq24159
SLUSAB0A
– OCTOBER 2010 – REVISED FEBRUARY 2012
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
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.
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 (5.05V) by boosting the battery voltage. The IC is
available in 20-pin WCSP package.
DEVICE SPINS AND COMPARISONS
PART NUMBER
bq24153A
bq24156A
bq24158
bq24159
VOVP (V)
6.5
9.8
6.5
9.8
D4 Pin Definition
OTG
SLRST
OTG
SLRST
ICHARGE(MAX) at POR in 15-minute mode with
325
325
325
325
R(SNS) = 68 mΩ and OTG=High on bq24153A/8
(mA)
ICHARGE(MAX) in HOST mode with R(SNS) = 68 mΩ
1.25
1.55
1.25
1.55
and Safety Limit Register increased from default
(A)
Output regulation voltage at POR (V)
3.54
3.54
3.54
3.54
Boost Function
Yes
No
Yes
No
100mA (OTG=LOW);
100mA (OTG=LOW);
Input Current Limit in 15Min Mode
500mA
500mA
500mA (OTG=High)
500mA (OTG=High)
Battery Detection at Power Up
Yes
Yes
No
No
I2C Address
6BH
6AH
6AH
6AH
PN1 (bit4 of 03H)
1
0
1
0
PN0 (bit3 of 03H)
0
0
0
0
Safety Timer and WD Timer
Enabled
Enabled
Enabled
Enabled
2
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Copyright
© 2010–2012, Texas Instruments Incorporated
Product Folder Link(s): bq24153A bq24156A bq24158 bq24159


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