IN

VBUS

GND

HOST

bq25100

OUT

1ÛF

1ÛF

SYSTEM

D+

D-

USB Port or

Adapter

ISET

PRETERM

TEMP

PACK+

PACK-

TS

VSS

CE

1.35k

Ÿ

6k

Ÿ

Product

Folder

Sample &

Buy

Technical

Documents

Tools &

Software

Support &

Community

bq25100, bq25101, bq25100A, bq25100H, bq25101H, bq25100L

SLUSBV8C – AUGUST 2014 – REVISED NOVEMBER 2014

bq2510x 250-mA Single Cell Li-Ion Battery Chargers, 1-mA Termination, 75-nA Battery

Leakage

1 Features

3 Description

The bq2510x series of devices are highly integrated

1

•

Charging

Li-Ion and Li-Pol linear chargers targeted at space-

–

1% Charge Voltage Accuracy

limited portable applications. The high input voltage

–

10% Charge Current Accuracy

range with input overvoltage protection supports low-

cost unregulated adapters.

–

Supports Applications for Very Low Charge

Currents - 10 mA to 250 mA

The bq2510x has a single power output that charges

the battery. A system load can be placed in parallel

–

Supports minimum 1-mA Charge Termination

with the battery as long as the average system load

Current

does not keep the battery from charging fully during

–

Ultra Low Battery Output Leakage Current -

the 10 hour safety timer.

Maximum 75 nA

The battery is charged in three phases: conditioning,

–

Adjustable Termination and Precharge

constant current and constant voltage. In all charge

Threshold

phases, an internal control loop monitors the IC

–

High voltage Chemistry Support: 4.35 V with

junction temperature and reduces the charge current

bq25100H/01H, 4.30 V with bq25100A

if an internal temperature threshold is exceeded.

•

Protection

The charger power stage and charge current sense

–

30-V Input Rating; with 6.5-V Input

functions are fully integrated. The charger function

Overvoltage Protection

has high accuracy current and voltage regulation

loops and charge termination. The pre-charge current

–

Input Voltage Dynamic Power Management

and termination current threshold are programmed

–

125°C Thermal Regulation; 150°C Thermal

via an external resistor on the bq2510x. The fast

Shutdown Protection

charge current value is also programmable via an

–

OUT Short-Circuit Protection and ISET Short

external resistor.

Detection

Device Information(1)

–

Operation over JEITA Range via Battery

PART NUMBER

PACKAGE

BODY SIZE (NOM)

NTC – 1/2 Fast-Charge-Current at Cold, 4.06

bq25100

DSBGA (6)

1.60 mm × 0.90 mm

V (bq25100/01) or 4.2 V (bq25100H/01H) at

bq25101

DSBGA (6)

1.60 mm × 0.90 mm

Hot

bq25100A

DSBGA (6)

1.60 mm × 0.90 mm

–

Fixed 10 Hour Safety Timer

bq25100H

DSBGA (6)

1.60 mm × 0.90 mm

•

System

bq25101H

DSBGA (6)

1.60 mm × 0.90 mm

–

Automatic Termination and Timer Disable

bq25100L(2)

DSBGA (6)

1.60 mm × 0.90 mm

Mode (TTDM) for Absent Battery Pack

(1) For all available packages, see the orderable addendum at

–

Available in Small 1.60 mm × 0.90 mm

the end of the datasheet.

DSBGA Package

(2) Product preview. Contact the local TI representative for device

details.

2 Applications

•

Fitness Accessories

•

Smart Watches

•

•

Low-Power Handheld Devices

1

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.