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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) - Battery Chargers > BQ24109RHLR
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BQ24109RHLR

In Stock 11668 pcs Reference Price(In US Dollars)
1+
$4.9823
10+
$4.8546
30+
$4.7704
100+
$4.6848
Manufacturer Part Number:
BQ24109RHLR
Manufacturer / Brand
Texas Instruments
Part of Description:
IC BATT CHG LI-ION 1CELL 20VQFN
Datasheets:
BQ24109RHLR.pdf
Lead Free Status / RoHS Status:
ROHS3 Compliant
Stock Condition:
New original, 11668 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number BQ24109RHLR
Manufacturer / Brand Texas Instruments
Stock Quantity 11668 pcs Stock
Category Integrated Circuits (ICs) > Power Management (PMIC) - Battery Chargers
Description IC BATT CHG LI-ION 1CELL 20VQFN
Lead Free Status / RoHS Status: ROHS3 Compliant
RFQ BQ24109RHLR Datasheets BQ24109RHLR Details PDF
BQ24109RHLR Details PDF for FR.pdf
BQ24109RHLR Details PDF for IT.pdf
BQ24109RHLR Details PDF for DE.pdf
BQ24109RHLR Details PDF for KR.pdf
BQ24109RHLR Details PDF for ES.pdf
Voltage - Supply (Max) 16V
Supplier Device Package 20-VQFN (3.5x4.5)
Series bqSWITCHER™
Programmable Features Current, Timer
Package / Case 20-VFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature -40°C ~ 85°C (TA)
Number of Cells 1
Mounting Type Surface Mount
Interface -
Fault Protection Over Temperature, Over Voltage
Current - Charging Constant - Programmable
Charge Current - Max 2A
Battery Pack Voltage 4.2V
Battery Chemistry Lithium Ion/Polymer
Base Product Number BQ24109

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

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2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



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BQ24109RHLR Product Details:

The BQ24109RHLR is a highly integrated Lithium-Ion/Lithium-Polymer battery charger IC from Luminary Micro/Texas Instruments. Designed in a compact 20-VQFN (3.5x4.5) package, this PMIC (Power Management Integrated Circuit) offers a comprehensive battery charging solution for a wide range of portable electronic devices.

The BQ24109RHLR features a programmable constant-current charging algorithm, allowing for precise control over the charging process. It supports a maximum charge current of 2A and can handle battery voltages up to 4.2V, making it suitable for single-cell Lithium-Ion or Lithium-Polymer battery packs. The device also incorporates essential fault protection mechanisms, such as over-temperature and over-voltage protection, ensuring safe and reliable operation.

One of the key design challenges addressed by the BQ24109RHLR is the need for compact, efficient, and high-performance battery charging solutions in modern portable electronics. The small 20-VQFN package and the integration of various charging and protection features help minimize the overall solution size, making it ideal for space-constrained applications.

The BQ24109RHLR operates over a wide temperature range of -40°C to 85°C, ensuring reliable performance in diverse environmental conditions. Additionally, the device is RoHS-compliant and lead-free, aligning with the industry's environmental standards.

The BQ24109RHLR's primary advantages include its programmable charging capabilities, comprehensive fault protection, and compact package size. These features make it a suitable choice for a variety of portable electronic devices, such as smartphones, tablets, wearables, and power banks, where efficient and reliable battery charging is a critical requirement.

While the BQ24109RHLR is a specific model, there are several equivalent or alternative models available from Texas Instruments that offer similar functionality and specifications. These include the BQ24108, BQ24115, and BQ24160 series, which may provide different charging current capabilities, package options, or additional features to cater to specific application needs.

BQ24109RHLR Key Technical Attributes

Manufacturer Part Number: BQ24109RHLR

Manufacturer: Luminary Micro / Texas Instruments

Series: bqSWITCHER

BQ24109RHLR Packing Size

Packaging Type: 20-VQFN (3.5x4.5)

Material: Lead free / RoHS Compliant

Package: Cut Tape (CT)

Thermal Characteristics: Operating Temperature -40°C ~ 85°C

Electrical Properties: Voltage - Supply (Max) 16V

BQ24109RHLR Application

The BQ24109RHLR is primarily used in charging Lithium Ion/Polymer batteries, suitable for a variety of portable devices such as smartphones, tablets, and digital cameras.

BQ24109RHLR Features

The BQ24109RHLR from Texas Instruments is designed as a highly efficient, single-cell Li-ion battery charger using a constant current/programmable voltage algorithm. It supports a maximum charge current up to 2A and battery pack voltage of 4.2V. The charger integrates multiple programmable features including charge current and charge timer control, enhancing flexibility in various charging applications. Additionally, it includes fault protection mechanisms against over temperature and over voltage conditions, ensuring safe and reliable operation.

BQ24109RHLR Quality and Safety Features

The device incorporates safety measures against fault conditions like over temperature and voltage spikes. It also adheres to the highest standards, being lead-free and RoHS compliant ensuring environmental safety and customer health.

BQ24109RHLR Compatibility

The BQ24109RHLR is compatible with single-cell Lithium Ion/Polymer batteries and can be utilized in various high-performance portable devices that require reliable battery management.

BQ24109RHLR Datasheet PDF

For the most detailed and authoritative information, customers are recommended to download the datasheet of BQ24109RHLR available on our website. This datasheet provides comprehensive details regarding functionality, specifications, and application guidelines.

Quality Distributor

IC-Components is a premium distributor for Luminary Micro / Texas Instruments products, including the BQ24109RHLR. We ensure you get the most reliable products accompanied by superior customer support. Get a quote directly on our website and experience our top-tier distribution services.

Frequently Asked Questions

When integrating the BQ24109RHLR into a system with a fluctuating input voltage, what is the maximum sustained input voltage that the BQ24109RHLR can tolerate before encountering overvoltage protection issues?
The BQ24109RHLR has a maximum supply voltage of 16V. Exceeding this 16V limit can trigger its overvoltage protection, potentially leading to shutdown or damage. Engineers designing with the BQ24109RHLR should ensure their input power source remains well below this threshold to prevent operational issues.
For a 1-cell Lithium Ion battery pack requiring a maximum charge voltage of 4.2V, how does the BQ24109RHLR manage the constant voltage charging phase, and are there any specific considerations for ensuring accurate termination?
The BQ24109RHLR is designed for 1-cell Lithium Ion/Polymer batteries and will regulate the charge voltage to 4.2V. The charging current is initially programmable and will then transition to constant current, eventually tapering off as the battery approaches full charge. While the device supports programmable features, ensuring accurate termination typically involves monitoring the battery voltage and current profile for adherence to typical Li-ion charging standards.
If I need to replace a BQ24109 based charger in an existing design, what are the critical pin-to-pin compatibility considerations when migrating to the BQ24109RHLR, especially regarding package differences like QFN vs. VQFN?
While the base part number is BQ24109, the BQ24109RHLR is supplied in a 20-VQFN (3.5x4.5) package (also referred to as 20-VFQFN Exposed Pad). Engineers replacing an older BQ24109 should meticulously compare the pinout and footprint of their existing board to the datasheet of the BQ24109RHLR. Although the functionality is similar, package variations can necessitate PCB layout adjustments, and it's crucial to verify that the exposed pad is properly connected for thermal management.
What are the practical implications for power supply design when using the BQ24109RHLR in an industrial environment where ambient temperatures can reach 85°C, considering its specified operating temperature range?
The BQ24109RHLR is rated for operation from -40°C to 85°C (TA). In an industrial setting approaching 85°C, thermal management of the BQ24109RHLR becomes critical. Ensure adequate PCB copper planes for heat dissipation, especially under maximum charge current (2A). The 20-VQFN package with an exposed pad is designed to aid thermal performance, but a proper thermal design review considering the overall system heat load is essential to prevent over-temperature faults.
Can the BQ24109RHLR be used for charging battery packs that require a maximum charge current of 2.5A, or would this exceed its capabilities and lead to reliability issues?
The BQ24109RHLR has a maximum charge current capability of 2A. Attempting to charge a battery pack with a required maximum charge current of 2.5A using the BQ24109RHLR would likely exceed its design limits and could lead to over-current protection tripping, reduced efficiency, increased thermal stress, and ultimately, reliability issues. For applications requiring 2.5A charging, a different charger IC with a higher current rating would be necessary.
In a design where the input voltage source can vary between 5V and 12V, how does the BQ24109RHLR adapt its charging profile, and are there any specific configuration registers or pins to monitor for optimal performance?
The BQ24109RHLR is designed to handle a wide input voltage range, up to 16V. It automatically adjusts its charging parameters based on the input voltage and battery state. While the device has programmable features for current and timer, the primary adaptation to varying input voltage is handled internally. For optimal performance, engineers should ensure the input voltage remains within the specified operating range and monitor the status pins or output voltage to confirm proper charging.
What are the typical failure modes or scenarios to watch out for when integrating the BQ24109RHLR into a battery management system for a consumer electronic device that undergoes frequent power cycling?
For the BQ24109RHLR, frequent power cycling can stress the internal power management circuitry. Key failure modes to consider include premature wear of the internal charge control loops, potential for transient voltage spikes during power transitions that might exceed internal protection, and thermal cycling effects on the component and solder joints. The MSL 2 rating (1 Year) suggests that proper storage and handling are important to prevent issues related to moisture absorption prior to soldering.
If I have an existing product using a competitor's charger IC (e.g., MCP73831) and am considering a migration to the BQ24109RHLR for improved performance, what are the primary design hurdles and potential trade-offs I should anticipate?
Migrating from a simple charger like the MCP73831 to the BQ24109RHLR involves significant design considerations. The MCP73831 is a much simpler, fixed-current charger. The BQ24109RHLR offers programmable current and timer features, a higher maximum input voltage (16V vs. typically 5.5V for MCP73831), and a different package (20-VQFN vs. SOT-23 for MCP73831). Key trade-offs include increased PCB complexity for the BQ24109RHLR, the need for additional control circuitry or microcontroller interfacing for programmability, and a different thermal profile due to the package size. The primary design hurdles will be adapting the PCB layout and potentially updating the firmware if the BQ24109RHLR's programmable features are to be utilized.
How does the BQ24109RHLR's "Over Temperature" fault protection function in practice, and what steps should an engineer take to ensure this protection mechanism effectively safeguards the battery and the IC itself in a sealed enclosure?
The BQ24109RHLR includes an over-temperature fault protection feature that will shut down charging if the internal temperature of the IC exceeds a safe threshold. In a sealed enclosure where heat dissipation is limited, engineers must ensure adequate thermal pathways from the BQ24109RHLR to the exterior or to a heatsink. This often involves using the exposed pad of the 20-VQFN package effectively by connecting it to substantial copper areas on the PCB. Monitoring the ambient temperature and the IC's thermal performance during design validation is crucial to ensure the over-temperature protection is not prematurely triggered under normal operating conditions but is effective during abnormal thermal events.
For a 1-cell Li-Polymer battery pack with a nominal voltage of 3.7V, what is the typical quiescent current of the BQ24109RHLR when it is not actively charging, and how might this impact battery drain in standby mode?
The datasheet for the BQ24109RHLR typically specifies quiescent current (I_Q) when the device is in a low-power or standby state. While specific values are best obtained from the detailed datasheet, it's generally in the microampere range for such devices. This low quiescent current means the BQ24109RHLR will have a minimal impact on battery drain in standby mode for a 1-cell Li-Polymer battery pack. However, system-level standby current consumption should also be accounted for.

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