Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsPMICsPMIC - battery management Charge management Li-Ion WSON 10 (3x2) Surface-mount

TEMP

PACK+

PACK-

BAT

ISET

VSS

VBUS

CHG

VDPM

bq24210

Host

System

Load

9 2 3

bq24210

www.ti.com

SLUSA76A –DECEMBER 2010– REVISED MAY 2011

800mA, Single-Input, Single Cell Li-Ion Battery Solar Charger

Check for Samples: bq24210

FEATURES

APPLICATIONS

• Input Voltage Dynamic Power Management • Smart Phones

Feature (VBUS_DPM)

• PDAs

• Selectable Battery Tracking Mode to Maximize

• MP3 Players

the Charge Rate from Solar Panel Using DPM

• Low-Power Handheld Devices

Feature

• Auxiliary Solar Chargers

• Load Mode to Support Loads Connected at

VBUS Pin

DESCRIPTION

• 20V Input Rating, with Over-Voltage Protection

The bq24210 is a highly integrated Li-ion linear

(OVP)

charger targeted at space-limited portable

applications. The high input voltage range with input

• 1% Battery Voltage Regulation Accuracy

over-voltage protection supports low-cost unregulated

• Up to 800mA Charge Current with 10% Charge

adapters. The input voltage regulation loop with

Current Accuracy

programmable input voltage regulation threshold

• Thermal Regulation Protection for Output

make it suitable for charging from alternative power

Current Control

sources, such as solar panel or inductive charging

pad.

• Low Battery Leakage Current

• BAT Short-Circuit Protection

The IC has a single power output that charges the

battery. A system load can be placed in parallel with

• NTC Input Monitoring

the battery as long as the average system load does

• Built-In Safety Timer With Reset Control

not keep the battery from charging fully during the 10

• Status Indication – Charging/Power Present

hour safety timer.

• Available in Small 2mm × 3mm SON-10

The battery is charged in three phases: conditioning,

Package

constant current and constant voltage. In all charge

phases, an internal control loop monitors the IC

junction temperature and reduces the charge current

if an internal temperature threshold is exceeded.

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.

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 (26 pages)

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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 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 (CONTINUED) The charger power stage and charge current sense functions are fully integrated. The charger function has high accuracy current and voltage regulation loops, charge status display, and charge termination function.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com TYPICAL APPLICATION CIRCUIT: bq24210 bq24210 7V Charging Source 20 V BAT 1 10 System VBUS 1mF ` PG 7 EN CHG 8 PG 6 VTSB 4 1 mF RT1 Tied to PG pin for auto-enabling charging operations and disabling of Load Mode PACK+ TS VDPM 9 ISET VSS 2 3 5 TEMP PACK- Open for Battery Tracking Mode Figure 2.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating temperature range (unless otherwise noted) VALUE Input Voltage VBUS (with respect to VSS) –0.3 to 20 BAT (with respect to VSS) –0.3 to 7 VDPM, VTSB, ISET, TS, EN, CHG, PG (with respect to VSS) –0.3 to 7 UNIT V Input Current VBUS 1.25 Output Current (Continuous) BAT 1.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com ELECTRICAL CHARACTERISTICS Over junction temperature range 0°C ≤ TJ ≤ 125°C, VBUS=5V, Charge mode (EN = Low) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT INPUT VUVLO Under-voltage lock-out Exit VBUS: 0V → 4V 3.15 3.3 3.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com ELECTRICAL CHARACTERISTICS Over junction temperature range 0°C ≤ TJ ≤ 125°C, VBUS = 5V, Charge mode (EN = Low) (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT QUIESCENT CURRENT IOUT(DONE) BAT pin current, charging terminated EN=Low, VBUS = 6V, Terminated 9 μA IOUT(STDBY) Suspend current into BAT pin EN=High, VBUS =0V, BAT = 4.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com ELECTRICAL CHARACTERISTICS (continued) Over junction temperature range 0°C ≤ TJ ≤ 125°C, VBUS = 5V, Charge mode (EN = Low) (unless otherwise noted) PARAMETER tMAXTERM Termination timer in Limited Power Charge mode TEST CONDITIONS Limited Power Charge mode, terminate charge when VIN DPM active, normal termination conditions met and this termer expires MIN TYP MAX UNIT 6800 7760 9000 s 2 2.2 2.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com DETAILED FUNCTIONAL DESCRIPTION OVERVIEW The bq24210 is a highly integrated 2x3 mm2 single cell Li-Ion charger with bi-directional power flow capability. Depending on the status of control pins and source conditions, the IC can operate in several modes: Sleep, Charge, Load, and Suspend mode. At power up (VBUS or BAT ramps up, or EN pin changes status), the IC performs the operation mode detection automatically.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com Power UP or EN Pin Change Status EN=Low? No Suspend Mode EN =High Any State Yes Charge Mode Yes VBUS³VBAT +VBUS_DT No Load Mode Yes VBUS£VBAT +VBUS_LM VHYS_VBUSLM ? No Sleep Mode Figure 5.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com During Charge Mode, if VBUS falls to the lower limit of Sleep comparator, the IC goes to Sleep Mode after a deglitch time of 32 mS. If VBUS falls faster than 32 ms to below the lower limit of Load Mode comparator, the IC goes to Load Mode after a deglitch time of 32ms, as shown in Figure 7.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com CHARGE MODE Power-Down or Under-Voltage Lockout (UVLO) The IC is in power down mode if the VBUS and BAT pin voltages are both less than UVLO. The part is considered "dead" and all the pins are high impedance. Once the VBUS voltage rises above the UVLO threshold the IC enters Sleep Mode or an active mode depending on control pin status and the BAT pin (battery) voltage.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com TRACKING vs BAT TRACKING vs TEMPERATURE 4.3 4.2 0.15 IBAT = 18.5mA V(BAT) = 3.8V, IBAT = 18.5mA 4.1 0.14 4.0 3.9 0.13 3.8 Delta - V BAT - V 3.7 3.6 3.5 3.4 0.12 0.11 3.3 0.10 3.2 3.1 0.09 3.0 2.9 2.8 3.6 3.7 3.8 3.9 4.0 4.1 4.2 4.3 4.4 4.5 4.6 0.08 -50 VBUS - Tracking - V 0 50 100 TA - Free-Air Temperature - °C Figure 9. Figure 10.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com Figure 11. Charge JEITA Profile VTSB VTSB LIMITED POWER CHARGE MODE CHARGE SUSPENDED V60C V60C REGULATION VOLTAGE REDUCTION 100mV V45C V45C TEMPERATURE RANGE DURING A CHARGE CYCLE V10C V10C 50% REDUCTION CHARGE CURRENT V0C V0C CHARGE SUSPENDED GND GND Figure 12.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com VTSB RT1 bq24210 TS RTH 103 AT Figure 13. TS Resistor Network The TS pin has another additional feature. When the TS pin is driven high (VTS> VLP(TS)), the IC operates in Limited Power Charge mode. Limited Power Charge Mode – TS Pin High When the TS pin goes high to the Limited Power Charge Mode (LPCM) threshold (VLP(TS)), the part enters Limited Power Charge mode.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com Battery Detect Routine The battery detect routine checks for a missing battery while keeping the BAT pin at a useable voltage. Whenever the battery is missing, the CHG pin is high impedance. The battery detect routine is run when entering and exiting LPCM to verify if battery is present, or run all the time if battery is missing.
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com Refresh Threshold After termination, if the BAT pin voltage drops to VRCH (100mV below regulation) then a new charge is initiated, but the CHG pin remains at a high impedance (off). Starting a Charge on a Full Battery The termination threshold is raised by 14%, for the first minute of a charge cycle so if a full battery is removed and reinserted or a new charge cycle is initiated, that the new charge terminates (less than 1 minute).
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bq24210 SLUSA76A – DECEMBER 2010 – REVISED MAY 2011 www.ti.com REVISION HISTORY Changes from Original (December 2010) to Revision A Page • Changed from Product Preview to Production Data ............................................................................................................. 1 • Added sentence to last paragraph of Description (continued) ..............................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-Aug-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) BQ24210DQCR WSON DQC 10 3000 180.0 BQ24210DQCT WSON DQC 10 250 BQ24210DQCT WSON DQC 10 250 B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 8.4 2.25 3.25 1.05 4.0 8.0 Q1 180.0 8.4 2.25 3.25 1.05 4.0 8.0 Q1 180.0 12.4 2.25 3.25 1.05 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 13-Aug-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) BQ24210DQCR WSON DQC 10 3000 210.0 185.0 35.0 BQ24210DQCT WSON DQC 10 250 210.0 185.0 35.0 BQ24210DQCT WSON DQC 10 250 210.0 185.0 35.
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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.