Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - battery management Charge management Li-Ion, Li-Po VSON 10 (3x3) Surface-mount

SET

VCC

OUT

VSS

STAT1

STAT2 7

BAT

ISET

bq24012DRC

BATTERY

PACK

PACK+

PACK

SYSTEM

INTERFACE

AC ADAPTER

bq24010, bq24012

bq24013, bq24014, bq24018

www.ti.com

SLUS530K –SEPTEMBER 2002–REVISED JANUARY 2014

Single-Chip, Li-Ion Charge Management IC for

Handheld Applications ( bqTINY™)

Check for Samples: bq24010, bq24012, bq24013, bq24014, bq24018

FEATURES

DESCRIPTION

• Small 3-mm × 3-mm MLP (QFN) Package

The bqTINY™ series are highly integrated Li-Ion and

• Ideal for Low-Dropout Designs for Single-Cell

Li-Pol linear charge management devices targeted at

Li-Ion or Li-Pol Packs in Space Limited

space limited portable applications. The bqTINY™

Applications

series offer integrated powerFET and current sensor,

• Integrated Power FET and Current Sensor for

reverse blocking protection, high accuracy current

and voltage regulation, charge status, and charge

Up to 1-A Charge Applications

termination, in a small package.

• Reverse Leakage Protection Prevents Battery

Drainage

The bqTINY™ charges the battery in three phases:

conditioning, constant current, and constant voltage.

• Integrated Current and Voltage Regulation

Charge is terminated based on minimum current. An

• ±0.5% Voltage Regulation Accuracy

internal charge timer provides a backup safety feature

• Charge Termination by Minimum Current and

for charge termination. The bqTINY™ automatically

Time

restarts the charge if the battery voltage falls below

an internal threshold. The bqTINY™ automatically

• Pre-Charge Conditioning With Safety Timer

enters sleep mode when V

supply is removed.

• Status Outputs for LED or System Interface

In addition to the standard features, different versions

Indicates Charge and Fault Conditions

of the bqTINY™ offer a multitude of additional

• Battery Insertion and Removal Detection

features. These include temperature sensing input for

• Works With Regulated and Unregulated

detecting hot or cold battery packs; power good (PG)

Supplies

output indicating the presence of valid input power; a

TTL-level charge-enable input (CE) used to disable or

• Short-Circuit Protection

enable the charge process; and a TTL-level timer and

• Charge Voltage Options: 4.2 V and 4.36 V

termination enable (TTE) input used to disable or

enable the fast-charge timer and charge termination.

APPLICATIONS

• Cellular Phones

• PDAs

• MP3 Players

• Digital Cameras

• Internet Appliances

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.

2bqTINY is a trademark of Texas Instruments.

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.

Summary of content (24 pages)

PAGE 1
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.
PAGE 2
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
PAGE 3
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.com SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 ELECTRICAL CHARACTERISTICS (continued) over 0°C ≤ TJ ≤ 125°C and recommended supply voltage, (unless otherwise noted) PARAMETER TEST CONDITIONS Voltage regulation accuracy V(DO) Dropout voltage (V(IN) – V(OUT)) MIN TA = 25°C TYP –0.5% –1% VO(REG) + V(DO–MAX)) ≤ VCC, IO(OUT) = 1A MAX UNIT 0.5% 1% 650 790 mV CURRENT REGULATION IO(OUT) (1) VCC ≥ 4.5 V, VIN ≥ 4.
PAGE 4
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.
PAGE 5
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.
PAGE 6
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com Table 1. TERMINAL FUNCTIONS TERMINAL bq24010 bq24012 bq24013 and bq24018 bq24014 BAT 9 9 9 9 I Battery voltage sense input CE – 8 7 7 I Charge enable input (active low) IN 1 1 1 1 I Charge input voltage. This input must be tied to the VCC pin.
PAGE 7
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.
PAGE 8
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com FUNCTIONAL DESCRIPTION The bqTINY™ supports a precision Li-Ion, Li-Pol charging system suitable for single-cells. Figure 2 shows a typical charge profile, application circuit, and Figure 5 shows an operational flow chart. BATTERY PACK bq24010DRC DC + 1 IN 2 VCC 0.47 mF PACK+ OUT 10 + VCC PACK BAT 9 0.
PAGE 9
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.
PAGE 10
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com TEMPERATURE QUALIFICATION NOTE The temperature qualifications apply only to versions with temperature sense input (TS) pin option (bq24020 and bq24014). Versions of the bqTINY with the TS pin option, continuously monitor battery temperature by measuring the voltage between the TS and VSS pins.
PAGE 11
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.com SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 BATTERY PRE-CONDITIONING During a charge cycle, if the battery voltage is below the V(LOWV) threshold, the bqTINY applies a pre-charge current, IO(PRECHG), to the battery. This feature revives deeply discharged cells. The resistor connected between the ISET and VSS, RSET, determines the pre-charge rate. The V(PRECHG) and K(SET) parameters are specified in the specifications table.
PAGE 12
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com After charge termination, the bqTINY restarts the charge once the voltage on the BAT pin falls below the V(RCH) threshold. This feature keeps the battery at full capacity at all times. See the Battery Absent Detection section for additional details. SLEEP MODE The bqTINY enters the low-power sleep mode if the VCC is removed from the circuit (PG pin is high impedance).
PAGE 13
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.com SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 BATTERY ABSENT DETECTION For applications with removable battery packs, bqTINY provides a battery absent detection scheme to reliably detect insertion or removal of battery packs, or both. The voltage at the BAT pin is held above the battery recharge threshold, V(RCH), by the charged battery following fast charging.
PAGE 14
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com TIMER FAULT RECOVERY As shown in Figure 5, bqTINY provides a recovery method to deal with timer fault conditions. The following conditions summarize this method. Condition 1: Charge voltage above recharge threshold (V(RCH)) and timeout fault occurs Recovery method: bqTINY waits for the battery voltage to fall below the recharge threshold.
PAGE 15
bq24010, bq24012 bq24013, bq24014, bq24018 www.ti.com SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 APPLICATION INFORMATION SELECTING INPUT CAPACITOR In most applications, all that is needed is a high-frequency decoupling capacitor. A 0.47-μF ceramic, placed in close proximity to VCC and VSS pins, works well. The bqTINY is designed to work with both regulated and unregulated external DC supplies.
PAGE 16
bq24010, bq24012 bq24013, bq24014, bq24018 SLUS530K – SEPTEMBER 2002 – REVISED JANUARY 2014 www.ti.com PCB LAYOUT CONSIDERATIONS It is important to pay special attention to the PCB layout. The following list provides some guidelines: • To obtain optimal performance, the decoupling capacitor from VCC to VSS and the output filter capacitors from BAT to ISET should be placed as close as possible to the bqTINY, with short trace runs to both signal and VSS pins.
PAGE 17
PACKAGE OPTION ADDENDUM www.ti.
PAGE 18
PACKAGE OPTION ADDENDUM www.ti.com 2-Nov-2013 Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 30-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant BQ24010DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 BQ24012DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 BQ24013DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.
PAGE 20
PACKAGE MATERIALS INFORMATION www.ti.com 30-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) BQ24010DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24012DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24013DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24014DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24018DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24018DRCT SON DRC 10 250 210.0 185.0 35.
PAGE 21
PAGE 22
PAGE 23
PAGE 24
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.