Name: BQ24006PWP
SKU: BQ24006PWP
Price: 6.44033 USD
Availability: InStock

bq24004

bq24005

bq24006

SLUS476B – DECEMBER 2000 – REVISED MAY 2002

TWO-CELL Li-ION CHARGE MANAGEMENT IC FOR PDAs

AND INTERNET APPLIANCES

FEATURES

D Highly Integrated Solution With FET Pass

Transistor and Reverse-Blocking Schottky

and Thermal Protection

D Integrated Voltage and Current Regulation

With Programmable Charge Current

D High-Accuracy Voltage Regulation (±1%)

D Ideal for Low-Dropout Linear Charger

Designs for Two-Cell Li-Ion Packs With Coke

or Graphite Anodes

D Up to 1.2-A Continuous Charge Current

D Safety-Charge Timer During Preconditioning

and Fast Charge

D Integrated Cell Conditioning for Reviving

Deeply Discharged Cells and Minimizing Heat

Dissipation During Initial Stage of Charge

D Optional Temperature or Input-Power

Monitoring Before and During Charge

D Various Charge-Status Output Options for

Driving Single, Double, or Bicolor LEDs or

Host-Processor Interface

D Charge Termination by Minimum Current and

Time

D Low-Power Sleep Mode

D Packaging: 20-Lead TSSOP PowerPAD

APPLICATIONS

D PDAs

D Internet Appliances

D MP3 Players

D Digital Cameras

DESCRIPTION

The bq2400x series ICs are advanced Li-Ion linear

charge management devices for highly integrated and

space-limited applications. They combine high-

accuracy current and voltage regulation; FET pass-

transistor and reverse-blocking Schottky; battery

conditioning, temperature, or input-power monitoring;

charge termination; charge-status indication; and

charge timer in a small package.

The bq2400x measures battery temperature using an

external thermistor. For safety, the bq2400x inhibits

charge until the battery temperature is within the

user-defined thresholds. Alternatively, the user can

monitor the input voltage to qualify charge. The

bq2400x series then charge the battery in three phases:

preconditioning, constant current, and constant

voltage. If the battery voltage is below the internal

low-voltage threshold, the bq2400x uses low-current

precharge to condition the battery. A preconditioning

timer provides additional safety. Following pre-

conditioning, the bq2400x applies a constant-charge

current to the battery. An external sense-resistor sets

the magnitude of the current. The constant-current

phase is maintained until the battery reaches the

charge-regulation voltage. The bq2400x then

transitions to the constant voltage phase. The user can

configure the device for cells with either coke or

graphite anodes. The accuracy of the voltage regulation

is better than ±1% over the operating junction

temperature and supply voltage range.

Charge is terminated by maximum time or minimum

taper current detection

The bq2400x automatically restarts the charge if the

battery voltage falls below an internal recharge

threshold.

PowerPAD is a trademark of Texas Instruments.

PRODUCTION DATA information is current as of publication date. Products

conform to specifications per the terms of Texas Instruments standard warranty.

Production processing does not necessarily include testing of all parameters.

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.

www.ti.com

bq24004

bq24005

bq24006

SLUS476B – DECEMBER 2000 – REVISED MAY 2002

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.

ORDERING INFORMATION

PACKAGE

CHARGE STATUS

20-LEAD HTTSOP PowerPAD

(PWP)

(1)

CHARGE STATUS

CONFIGURATION

bq24004PWP Single LED

–40°C to 125°C

bq24005PWP 2 LEDs

40 C

125 C

bq24006PWP Single bicolor LED

(1)

The PWP package is available taped and reeled. Add R suffix to device type (e.g. bq24005PWPR) to order. Quantities 2500 devices per reel.

PACKAGE DISSIPATION RATINGS

PACKAGE Θ

≤ 25°C

POWER RATING

DERATING FACTOR

ABOVE T

= 25°C

PWP

(1)

30.88°C/W 1.19°C/W 3.238 W 0.0324W/°C

(1)

This data is based on using the JEDEC high-K board and topside traces, top and bottom thermal pad (6,5 × 3,4 mm), internal 1-oz. power and

ground planes, 8 thermal via underneath the die connecting to ground plane.

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range unless otherwise noted

(1)

bq24004

bq24005

bq24006

Supply voltage (V

with respect to GND) 13.5 V

Input voltage (IN, ISNS, EN, APG/THERM/CR/STAT1/STAT2, VSENSE, TMR SEL, VSEL) (all with respect to GND) 13.5 V

Output current (OUT pins) 2 A

Output sink/source current (STAT1 and STAT2) 10 mA

Operating free-air temperature range, T

–40°C to 70°C

Storage temperature range, T

stg

–65°C to 150°C

Junction temperature range, T

–40°C to 125°C

Lead temperature (Soldering, 10 s) 300°C

(1)

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

RECOMMENDED OPERATING CONDITIONS

MIN MAX UNIT

Supply voltage, V

4.5 10 V

Input voltage, VIN 4.5 10 V

Continuous output current 1.2 A

Operating junction temperature range, T

–40 125 °C

bq24004

bq24005

bq24006

SLUS476B – DECEMBER 2000 – REVISED MAY 2002

www.ti.com

ELECTRICAL CHARACTERISTICS

over recommended operating junction temperature supply and input voltages, and V

) ≥ V

(IN) ( unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

current V

> V

_UVLO, EN ≤ V

(IHEN)

1 mA

current, standby mode EN ≤ V

(ILEN)

1 µA

IN current, standby mode EN ≤ V

(ILEN)

10 µA

Standby current (sum of currents into

< V

_UVLO, V

O(OUT)

= 8.6 V, VSENSE = 8.6V 2 8

µA

Standby

current

(sum

currents

into

OUT and VSENSE pins)

EN ≤ V

(ILEN),

O(OUT)

= 8.6 V, VSENSE = 8.6 V 2 8

µA

VOLTAGE REGULATION, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Out

utvoltage

VSEL = V

, 0 < I

≤ 1.2 A 8.118 8.20 8.282 V

Output voltage

VSEL = V

, 0 < I

≤ 1.2 A 8.316 8.40 8.484 V

Load regulation

1 mA ≤ I

≤ 1.2 A,

=10 V,

I(IN)

= 5 V,

= 25°C

1 mV

Line regulation V

O(OUT)

(ilim)

MAX < V

I(VCC)

< 10 V, T

= 25°C 0.01 %/V

Dropout voltage = VI(IN)-Vout I

= 1.2 A, V

O(OUT)

(DO)

(ilim)

MAX < V

I(VCC)

< 10 V 0.5 V

CURRENT REGULATION, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Current regulation threshold, , V

I(limit)

VSENSE < V

O(VSEL-LOW/HIGH)

0.095 0.1 0.105 V

Delay time

VSENSE pulsed above V

(LOWV)

to I

= 10% of

regulated value

(1)

1 ms

Rise time

increasing from 10% to 90% of regulated value.

(SNS)

≥ 0.2 Ω,

(1)

0.1 1 ms

(1)

Specified by design, not production tested.

CURRENT SENSE RESISTOR, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

External current sense resistor range R

(SNS)

100 mA ≤ (ilim) ≤ 1.2 A 0.083 1 Ω

PRECHARGE CURRENT REGULATION, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Precharge current regulation VSENSE<V

(LOWV),

0.083 ≤ R

(SNS)

≤ 1.0 Ω 40 60 80 mA

UVLO COMPARATOR, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Start threshold 8.75 8.9 9.0 V

Stop threshold 8.50 8.66 8.8 V

Hysteresis 50 mV

APG/THERM COMPARATOR, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Upper trip threshold 1.480 1.498 1.515 V

Lower trip threshold 0.545 0.558 0.570 V

Input bias current 1 µA

LOWV COMPARATOR, 0°C ≤ T

≤ 125°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

Start threshold 5.60 5.75 5.90 V

Stop threshold 6.10 6.25 6.40 V

Hysteresis 100 mV

Part #	BQ24006PWP
Description	LI-ION BATTERY CHARGER - Rail/Tube
Category	IC
Availability	In Stock
Qty	20

Qty	Price
1 - 4	$6.44033
5 - 8	$5.12299
9 - 12	$4.83025
13 - 16	$4.48872
17 +	$4.00081

BQ24006PWP

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