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BQ24100RHLR
Texas Instruments
IC BATT CHG LI-ION 1CELL 20VQFN
3177 Pcs New Original In Stock
Charger IC Lithium Ion/Polymer 20-VQFN (3.5x4.5)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (469 Ratings)
BQ24100RHLR
Product Overview
1429473
DiGi Electronics Part Number
BQ24100RHLR-DGManufacturer
Texas Instruments
BQ24100RHLR
Description
IC BATT CHG LI-ION 1CELL 20VQFNInventory
3177 Pcs New Original In Stock
Charger IC Lithium Ion/Polymer 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.
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Worldwide Delivery in 3-5 Business Days
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BQ24100RHLR Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
bqSWITCHER™
Product Status
Active
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
Current, Timer
Fault Protection
Over Temperature, Over Voltage
Charge Current - Max
2A
Battery Pack Voltage
4.2V
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
BQ24100
Datasheet & Documents
HTML Datasheet
BQ24100RHLR-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
296-17154-1
-BQ24100RHLRG4-NDR
296-17154-2
296-17154-6
-BQ24100RHLR-NDR
-296-17154-1
2156-BQ24100RHLRTR
-296-17154-1-DG
-BQ24100RHLRG4
296-17154-6-NDR
Standard Package
3,000
Alternative Parts
PART 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
L'équipe de support m'a assisté après l'achat avec beaucoup de patience et de clarté, ce qui est rare.
de desembre 02, 2025
Service après-vente réactif, ils ont résolu mon problème en un rien de temps.
de desembre 02, 2025
Their professionalism in logistics makes procurement straightforward and efficient.
de desembre 02, 2025
The packaging was exceptionally secure, ensuring the products arrived in pristine condition every time.
de desembre 02, 2025
Choosing DiGi Electronics has been a smart decision for our business continuity.
de desembre 02, 2025
The environmentally conscious packaging shows their dedication to sustainability, and delivery was rapid.
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Frequently Asked Questions (FAQ)
What are the key design risks when using the BQ24100RHLR in a high-temperature environment near its maximum operating limit of 85°C?
When using the BQ24100RHLR in environments approaching 85°C, thermal runaway and reduced charge efficiency are key risks due to its integrated power path and switching charger design. The BQ24100RHLR includes over-temperature protection, but prolonged exposure near the limit can trigger frequent thermal regulation, disrupting charge cycles. To mitigate, ensure adequate PCB copper spread for heatsinking, avoid placing the device near other heat sources, and consider reducing programmed charge current to keep junction temperature below recommended limits. Also verify thermal performance under full load during validation testing to prevent reliability degradation over time.
How does the BQ24100RHLR compare to the LTC4056AE when selecting a single-cell Li-ion charger for space-constrained portable devices?
The BQ24100RHLR offers significant advantages over the LTC4056AE in compact designs due to its 20-VQFN (3.5x4.5mm) package and higher max charge current (2A vs. 0.5A), enabling faster charging in small-form-factor applications. Unlike the LTC4056AE, the BQ24100RHLR supports programmable charge current and timer settings, allowing fine-tuned control over charge profile. However, the LTC4056AE includes integrated battery temperature monitoring (JEITA), which the BQ24100RHLR lacks—designers must add external thermistor circuitry for thermal-safe charging. Choose the BQ24100RHLR when higher current and programmability are critical, but ensure robust thermal management and external temp sensing.
Can the BQ24100RHLR safely replace the MCP73831 in an existing 1-cell Li-ion charge management circuit, and what circuit modifications are required?
The BQ24100RHLR can replace the MCP73831 in many single-cell Li-ion applications, but modifications are needed due to differences in control interfaces and protection features. The MCP73831 uses fixed charge algorithms with basic status pins, while the BQ24100RHLR requires external resistors to program charge current and charging time via dedicated pins. You must add current-setting and timer-programming resistors if not already present. Additionally, the BQ24100RHLR operates at higher input voltages (up to 16V vs. 6V for MCP73831), so verify input supply compatibility. Ensure that the absence of built-in thermal regulation in the BQ24100RHLR is compensated with external design safeguards.
What are the implications of the BQ24100RHLR's lack of an I²C interface on system integration in microcontroller-based designs?
The BQ24100RHLR's absence of an I²C or digital interface means charge parameters (current, timer) must be set passively via external resistors, limiting dynamic control compared to programmable PMICs like the BQ24195. This makes the BQ24100RHLR less suitable for adaptive charging algorithms based on system load or battery health. However, it simplifies design by reducing firmware complexity and PCB routing. Use the BQ24100RHLR when a fixed, reliable charge profile is acceptable, such as in cost-sensitive or low-software-overhead applications. Monitor status outputs (e.g., CHRG, STAT) with GPIOs to detect fault conditions and act accordingly in firmware.
What reliability concerns should be addressed when designing the BQ24100RHLR into a battery-powered IoT sensor with long field deployment?
For long-deployment IoT sensors, key reliability concerns with the BQ24100RHLR include long-term drift in charge termination accuracy and exposure to environmental stressors like humidity. Ensure precise setting of the charge current resistor to maintain consistent 4.2V regulation, as deviation can lead to undercharging or lithium plating. Guard against moisture-related corrosion by conformal coating the PCB, especially around the exposed pad. The BQ24100RHLR’s MSL 2 rating requires strict handling during assembly to avoid popcorning. Additionally, validate the timer-based charge termination to prevent chronic overcharging in infrequent charge cycles, which could degrade battery lifespan in sealed enclosures.
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.
BQ24100RHLR CAD Models
Texas Instruments BQ24100RHLR PCB symbols & footprints
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