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BQ24262RGER
Texas Instruments
IC BATT CHG LI-ION 1CELL 24VQFN
3629 Pcs New Original In Stock
Charger IC Lithium Ion 24-VQFN (4x4)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (63 Ratings)
BQ24262RGER
Product Overview
1258341
DiGi Electronics Part Number
BQ24262RGER-DGManufacturer
Texas Instruments
BQ24262RGER
Description
IC BATT CHG LI-ION 1CELL 24VQFNInventory
3629 Pcs New Original In Stock
Charger IC Lithium Ion 24-VQFN (4x4)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
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BQ24262RGER Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
-
Series
-
Product Status
Obsolete
Battery Chemistry
Lithium Ion
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
Current
Fault Protection
Over Temperature, Over Voltage
Charge Current - Max
3A
Battery Pack Voltage
4.2V
Voltage - Supply (Max)
6V
Interface
I2C
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Package / Case
24-VFQFN Exposed Pad
Supplier Device Package
24-VQFN (4x4)
Base Product Number
BQ24262
Datasheet & Documents
Manufacturer Product Page
BQ24262RGER Specifications
HTML Datasheet
BQ24262RGER-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
BQ24262RGER-DG
2156-BQ24262RGER
-296-39921-1-DG
296-39921-6
296-39921-1
TEXTISBQ24262RGER
296-39921-2
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
價格非常優惠，性價比超高，值得推薦給所有人！
de desembre 02, 2025
高品質な商品を素早く提供してくれるので、とても信頼しています。
de desembre 02, 2025
Shipping was faster than I expected, and the tracking updates kept me well-informed every step of the way.
de desembre 02, 2025
Their website design facilitates an enjoyable and efficient shopping journey.
de desembre 02, 2025
The quality assurance at DiGi Electronics gives me confidence in every purchase.
de desembre 02, 2025
Shipping logistics were impeccable, ensuring quick and reliable delivery.
de desembre 02, 2025
DiGi Electronics ensures you get the best quality for your money.
de desembre 02, 2025
The care put into their packaging demonstrates their customer-first approach.
de desembre 02, 2025
DiGi Electronics’ logistics efficiency helps me meet tight deadlines.
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Frequently Asked Questions (FAQ)
What are the key design risks when replacing the obsolete BQ24262RGER with the BQ25601RTWR in a 1S Li-ion battery charging application, and how can I ensure compatibility?
The BQ24262RGER is now obsolete, and while the BQ25601RTWR is listed as a substitute, direct replacement requires careful evaluation. The BQ25601RTWR supports higher input voltage (up to 14V vs. 6V on the BQ24262RGER), which improves compatibility with USB-PD but may require input overvoltage protection if your system uses a 5V supply. Additionally, the BQ25601RTWR uses a different I2C register map and default charging current settings, so firmware must be updated to avoid incorrect charge profiles. Ensure thermal pad layout compatibility—both use 4x4mm QFN packages—but verify pad dimensions and via-in-pad requirements. Always validate charge termination accuracy and pre-charge behavior under low-battery conditions during prototype testing.
How does the thermal performance of the BQ24262RGER in a 24-VQFN package impact high-current (3A) charging designs, and what PCB layout practices mitigate overheating risks?
The BQ24262RGER’s 24-VQFN (4x4mm) package relies heavily on the exposed thermal pad for heat dissipation, especially at its 3A max charge current. Inadequate copper area or poor via stitching can lead to localized hot spots, triggering over-temperature fault protection and interrupting charging. To mitigate this, use a minimum of 4–6 thermal vias under the exposed pad connected to a solid ground plane on the inner layer. Expand copper pour on the top layer beneath the IC and avoid placing sensitive analog components nearby. Thermal simulations or IR imaging during bench testing are recommended to confirm junction temperature stays below 125°C under worst-case ambient (85°C) and full-load conditions.
Can the BQ24262RGER safely charge deeply discharged Li-ion cells below 2.5V, and what are the risks if pre-charge current isn’t properly configured?
The BQ24262RGER includes a pre-charge mode for deeply discharged cells, but improper configuration of the programmable pre-charge current (via I2C) poses reliability risks. If set too high, it can cause lithium plating or excessive heat in cells with internal resistance >200mΩ. TI recommends limiting pre-charge current to 10–15% of the fast-charge current (e.g., 300mA for a 2A system). Always verify that the battery pack includes a protection circuit module (PCM) to prevent over-discharge below 2.0V, as the BQ24262RGER alone cannot fully protect against cell damage from prolonged deep discharge. Monitor cell voltage during qualification to ensure safe re-entry into constant-current charging.
What integration challenges arise when using the BQ24262RGER’s I2C interface in noisy industrial environments, and how can signal integrity be preserved?
The BQ24262RGER’s I2C interface is susceptible to noise in industrial settings with motors, relays, or switching power supplies, which can corrupt register writes and cause unintended charging behavior. To maintain signal integrity, keep I2C traces short (<10 cm), route them away from high-dV/dt nodes, and use series termination resistors (22–100Ω) near the master. Enable internal pull-ups only if bus capacitance is low; otherwise, use external 2.2–4.7kΩ pull-ups to 3.3V. Implement error-checking in firmware (e.g., read-back verification of critical registers like charge current settings) and consider adding a watchdog timer to reset the charger IC if communication fails. Avoid daisy-chaining multiple I2C devices on the same bus without assessing total capacitance.
Is the BQ24262RGER suitable for automotive-grade applications given its -40°C to 85°C operating range, and what derating considerations apply near temperature extremes?
While the BQ24262RGER meets the -40°C to 85°C ambient temperature range, it is not AEC-Q100 qualified and thus not recommended for direct automotive use (e.g., under-hood applications). Even in non-automotive high-reliability systems, derating is essential: at 85°C ambient, the IC’s power dissipation must be reduced to prevent thermal shutdown. For example, at 3A charge current with a 5V input and 4.2V battery, power loss exceeds 2.4W—requiring significant copper area to keep junction temperature within limits. At -40°C, Li-ion cell internal resistance increases, potentially causing premature charge termination; consider reducing fast-charge current by 30–50% in cold environments or implementing a battery heater. Always validate performance across the full temperature range with actual battery samples.
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.
BQ24262RGER CAD Models
Texas Instruments BQ24262RGER PCB symbols & footprints
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