CP1008 datasheet(2/45 Pages) TI

2 / 45 page

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

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

Boost Function

Yes

100mA (OTG=LOW);

Input Current Limit in 15Min Mode

500mA

500mA (OTG=High)

Battery Detection at Power Up

Yes

I2C Address

6BH

6AH

PN1 (bit4 of 03H)

PN0 (bit3 of 03H)

Safety Timer and WD Timer

Enabled

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Product Folder Link(s): bq24153A bq24156A bq24158 bq24159

CP1008 Datasheet(PDF) 2 Page - Texas Instruments

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