Datasheet

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

FEATURES

DESCRIPTION

APPLICATIONS

OUT

STAT1

STAT2

VBSEL

ISET

SET

bq24080

BatteryPackPACK+

PACK–

System

Interface

VDC

GND

Adapter

0.1 F

0.1µF

1.13kW

bq24083

www.ti.com

.............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009

1A, LI-ION, LI-POL BATTERY CHARGER WITH ADJUSTABLE BATTERY VOLTAGE

• Pin Select Battery Voltage (4.06V/4.2V)

• Integrated Power FET and Current Sensor for

The bq24083 is highly integrated and flexible Li-Ion

linear charge device targeted at space-limited charger

Up to 1A Charge Applications From AC

applications. It offers an integrated power FET and

Adapter

current sensor, high-accuracy current and voltage

• Precharge Conditioning With Safety Timer

regulation, charge status, and charge termination, in

• Charge and Power-Good Status Output

a single monolithic device. An external resistor sets

the magnitude of the charge current. The bq24083

• Automatic Sleep Mode for Low Power

has an option of two output battery charge voltages:

Consumption

4.06 V and 4.2 V.

• Integrated Charge-Current Monitor

The device charges the battery in three phases:

• Fixed 7-Hour Fast Charge Safety Timer

conditioning, constant current, and constant voltage.

• Ideal for Low-Dropout Charger Designs for

Charge is terminated based on minimum current. An

Single-Cell Li-Ion or Li-Pol Packs in

internal charge timer provides a backup safety for

Space-Limited Portable Applications

charge termination. The device automatically restarts

the charge if the battery voltage falls below an

• Small 3-mm × 3-mm SON Package

internal threshold. The device automatically enters

sleep mode when the ac adapter is removed.

• PDAs, MP3 Players

• Digital Cameras

• Internet Appliances

• Smartphones

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.

2 PowerPAD 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 (23 pages)

PAGE 1
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 1A, LI-ION, LI-POL BATTERY CHARGER WITH ADJUSTABLE BATTERY VOLTAGE FEATURES 1 • Pin Select Battery Voltage (4.06V/4.
PAGE 2
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. 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.
PAGE 3
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 ELECTRICAL CHARACTERISTICS over 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX 1.
PAGE 4
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS (continued) over 0°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VO(REG) – 0.115 VO(REG) − 0.10 VO(REG) − 0.085 250 375 500 ms 0.
PAGE 5
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 PIN CONFIGURATION DRC PACKAGE (TOP VIEW) VSS 5 STAT2 STAT1 3 4 NC IN 2 1 9 10 CE OUT bq24083 6 7 8 ISET VBSEL PG TERMINAL FUNCTIONS TERMINAL NAME I/O DESCRIPTION NO. CE 9 I Charge enable input (active-low) N.C. 2 – No Connection. Leave this pin unconnected.
PAGE 6
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com FUNCTIONAL BLOCK DIAGRAM Note: (1) IN OUT ISET V(PRECHG) V(SET) VO(REG) V(RCH) V(LOWV) Note: (1) Note: (1) Note: (1) V(TERM) VBSEL 4.06 V VIN 4.
PAGE 7
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 TYPICAL CHARACTERISTICS DROPOUT VOLTAGE vs JUNCTION TEMPERATURE 450 IO(OUT) = 1000 mA 400 Dropout Voltage - mV 350 IO(OUT) = 750 mA 300 250 IO(OUT) = 500 mA 200 150 IO(OUT) = 250 mA 100 50 0 0 50 100 TJ - Junction Temperature - oC Figure 1. 150 Figure 2.
PAGE 8
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 3. Charge Enable Power-Up Sequence (CE = High-to-Low) Figure 4.
PAGE 9
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 TYPICAL CHARACTERISTICS (continued) (1) No battery – In termination deglitch prior to STAT1 going high. VOUT (VBAT) cycling between charge and done prior to screen capture. (2) Stat1 goes high – In done state (3) 2-V battery is inserted during the charge done state.
PAGE 10
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com FUNCTIONAL DESCRIPTION The device supports a precision Li-Ion, Li-Pol charging system suitable for single cells. Figure 6 shows a typical charge profile, and Figure 7 shows an operational flow chart.
PAGE 11
bq24083 www.ti.com ..............................................................................................................................................................
PAGE 12
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com Battery Preconditioning During a charge cycle, if the battery voltage is below the V(LOWV) threshold, the device applies a precharge current, IO(PRECHG), to the battery. This feature revives deeply discharged cells.
PAGE 13
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 Charge Status Outputs The open-drain STAT1 and STAT2 outputs indicate various charger operations as shown in the following table. These status pins can be used to drive LEDs or communicate to the host processor. Note that OFF indicates the open-drain transistor is turned off. Table 1.
PAGE 14
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com APPLICATION INFORMATION bq24083 CHARGER DESIGN EXAMPLE Requirements • Supply voltage = 5 V • Fast-charge current of approximately 750 mA Calculations Program the charge current for 750 mA: RISET = [V(SET) × K(SET) / I(OUT)] From electrical characteristics table, V(SET) = 2.5 V.
PAGE 15
bq24083 www.ti.com .............................................................................................................................................................. SLUS848A – MAY 2008 – REVISED APRIL 2009 SOURCE INPUT VDC C1 0.1 mF 1 IN OUT 1.5 kW PACK+ 10 C2 0.1 mF 1.5 kW GND 1.5 kW 100 kW bq24083 2 NC CE 9 3 STAT1 PG 8 4 STAT2 VBSEL 7 5 VSS 6 ISET + PACK– HI, VOUT = 4.06 LO, VOUT = 4.2 1.
PAGE 16
bq24083 SLUS848A – MAY 2008 – REVISED APRIL 2009 .............................................................................................................................................................. www.ti.com PCB Layout Considerations It is important to pay special attention to the PCB layout.
PAGE 17
PACKAGE OPTION ADDENDUM www.ti.
PAGE 18
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 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 BQ24083DRCR SON DRC 10 3000 330.0 12.4 3.3 3.3 1.1 8.0 12.0 Q2 BQ24083DRCT SON DRC 10 250 180.0 12.4 3.3 3.3 1.1 8.0 12.
PAGE 19
PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) BQ24083DRCR SON DRC 10 3000 367.0 367.0 35.0 BQ24083DRCT SON DRC 10 250 210.0 185.0 35.
PAGE 20
PAGE 21
PAGE 22
PAGE 23
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 JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.