Counterfeit and defect prevention
Visual and packaging inspection
Electrical performance verification
Service Email:
[email protected]
>
BQ24105RHLR
Texas Instruments
IC BAT CHG MULTCHEM 1-3CL 20VQFN
32383 Pcs New Original In Stock
Charger IC Multi-Chemistry 20-VQFN (3.5x4.5)
Request Quote
(Ships tomorrow)
*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (374 Ratings)
BQ24105RHLR
Product Overview
1274945
DiGi Electronics Part Number
BQ24105RHLR-DGManufacturer
Texas Instruments
BQ24105RHLR
Description
IC BAT CHG MULTCHEM 1-3CL 20VQFNInventory
32383 Pcs New Original In Stock
Charger IC Multi-Chemistry 20-VQFN (3.5x4.5)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
Shipping & Delivery
Quality Assurance
365 - Day Quality Guarantee - Every part fully backed.
90 - Day Refund or Exchange - Defective parts? No hassle.
Limited Stock, Order Now - Get reliable parts without worry.
Global Shipping & Secure Packaging
Worldwide Delivery in 3-5 Business Days
100% ESD Anti-Static Packaging
Real-Time Tracking for Every Order
Secure & Flexible Payment
Credit Card, VISA, MasterCard, PayPal, Western Union, Telegraphic Transfer(T/T) and more
All payments encrypted for security
BQ24105RHLR Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
bqSWITCHER™
Product Status
Active
Battery Chemistry
Multi-Chemistry
Number of Cells
1 ~ 3
Current - Charging
Constant - Programmable
Programmable Features
Current, Timer
Fault Protection
Over Temperature, Over Voltage
Charge Current - Max
2A
Battery Pack Voltage
15.5V
Voltage - Supply (Max)
16V
Interface
-
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
20-VFQFN Exposed Pad
Supplier Device Package
20-VQFN (3.5x4.5)
Base Product Number
BQ24105
Datasheet & Documents
HTML Datasheet
BQ24105RHLR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
-BQ24105RHLRG4-NDR
TEXTISBQ24105RHLR
296-17159-2-NDR
2156-BQ24105RHLR
-296-17159-1-DG
-BQ24105RHLR-NDR
296-17159-1-NDR
-296-17159-1
-BQ24105RHLRG4
296-17159-6-NDR
296-17159-1
296-17159-2
296-17159-6
-HPA00138RHLR
-HPA00138RHLR-NDR
Standard Package
3,000
Alternative Parts
View DetailsPART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
아무리 말해도 부족할 정도로 서비스가 뛰어나고 믿을 만해요.
de desembre 02, 2025
DiGi的包裝不僅環保，而且設計得很用心，拆開來感覺很有質感，十分喜歡這樣的用心。
de desembre 02, 2025
Leur équipe de support est vraiment à la hauteur, très professionnelle.
de desembre 02, 2025
Quick shipment, and their after-sales team resolved my issue within minutes. Very satisfied.
Publish Evalution
Evalution Message
Please enter your review message.
Please post honest comments and do not post ilegal comments.
Frequently Asked Questions (FAQ)
Can the BQ24105RHLR safely replace a BQ24115RHLR in a 2-cell Li-ion battery charging design, and what design changes are required to avoid reliability issues?
Yes, the BQ24105RHLR can replace the BQ24115RHLR in a 2-cell Li-ion application, but critical differences must be addressed: the BQ24105RHLR supports up to 3 cells with a maximum battery pack voltage of 15.5V, while the BQ24115RHLR is rated for higher input voltage (up to 28V). If your system uses a 12V or 15V input rail, the BQ24105RHLR is suitable, but you must ensure the input supply does not exceed its 16V absolute maximum. Additionally, verify that the charge termination current and timer settings are reprogrammed via external resistors, as default thresholds differ. Failing to adjust these may result in undercharging or extended charge times, impacting battery cycle life.
What thermal management considerations are critical when using the BQ24105RHLR in a compact, enclosed design with 2A charging current?
The BQ24105RHLR dissipates significant heat during 2A charging, especially at high input-to-battery voltage differentials. The 20-VQFN exposed pad package relies heavily on PCB copper pour for heat sinking. In compact designs, inadequate thermal relief can trigger over-temperature fault protection, interrupting charging. To mitigate this, use a minimum of 4-layer PCB with a solid ground plane under the IC, connect the exposed pad to a large copper area (≥2 in²) with multiple thermal vias, and avoid placing heat-sensitive components nearby. Monitor junction temperature via thermal modeling or empirical testing—sustained operation near 85°C ambient may require derating charge current to maintain reliability.
How does the BQ24105RHLR handle multi-chemistry charging for Li-ion vs. LiFePO4 batteries, and what external component adjustments are needed to prevent overvoltage damage?
The BQ24105RHLR supports multi-chemistry charging but requires manual configuration via external resistor dividers for voltage regulation. For Li-ion (4.2V/cell), set the final charge voltage to 8.4V for 2 cells; for LiFePO4 (3.6V/cell), adjust to 7.2V. Incorrect resistor values can lead to overvoltage, damaging the battery. Use 1% tolerance resistors and validate the feedback network with a precision voltmeter during prototyping. The IC lacks automatic chemistry detection, so firmware or hardware must ensure the correct voltage setting is applied before enabling charge. Mismatched settings are a common root cause of field failures in mixed-chemistry platforms.
Is the BQ24105RHLR suitable for automotive jump-start applications where input voltage may spike above 16V, and how can I protect it from transient overvoltage?
The BQ24105RHLR is not inherently suitable for direct connection in automotive jump-start scenarios due to its 16V maximum supply voltage. Voltage spikes from load dumps or jump-start events can exceed this limit, causing permanent damage. To use it safely, add a front-end protection circuit: a 15V TVS diode (e.g., SMAJ15A) in parallel with a 1A PTC fuse and a buck pre-regulator (e.g., LM53601) to clamp input voltage below 15V. This adds cost and complexity but prevents catastrophic failure. Without such protection, field returns due to input overstress are highly likely in harsh environments.
What are the risks of using the BQ24105RHLR in a design with intermittent USB power input, and how can charge cycle instability be minimized?
Using the BQ24105RHLR with intermittent USB power (e.g., from a PC or unpowered hub) introduces risks of incomplete charge cycles and timer faults. USB ports may provide unstable or limited current (500mA typical), causing the charger to repeatedly enter and exit constant-current mode, leading to excessive timer accumulation and premature charge termination. To mitigate this, implement a bulk input capacitor (≥100µF low-ESR) near the IC to buffer short power drops, and configure the safety timer to a longer duration (e.g., 6–8 hours) to accommodate slow charging. Additionally, monitor the /PG (power good) signal to detect valid input and delay charge initiation until stable power is confirmed—this prevents erratic behavior and improves user experience.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
BQ24105RHLR CAD Models
Texas Instruments BQ24105RHLR PCB symbols & footprints
productDetail
