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BQ24075RGTR
Texas Instruments
IC BATT CHG LI-ION 1CELL 16QFN
20528 Pcs New Original In Stock
Charger IC Lithium Ion 16-VQFN (3x3)
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Minimum 1
5.0 / 5.0
- (475 Ratings)
BQ24075RGTR
Product Overview
1232924
DiGi Electronics Part Number
BQ24075RGTR-DGManufacturer
Texas Instruments
BQ24075RGTR
Description
IC BATT CHG LI-ION 1CELL 16QFNInventory
20528 Pcs New Original In Stock
Charger IC Lithium Ion 16-VQFN (3x3)
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
Warranty & Returns
How to Order
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BQ24075RGTR Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Battery Chemistry
Lithium Ion
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
Current, Timer
Fault Protection
Over Temperature, Over Voltage, Reverse Current, Short Circuit
Charge Current - Max
1.5A
Battery Pack Voltage
4.2V
Voltage - Supply (Max)
6.4V
Interface
USB
Operating Temperature
-40°C ~ 125°C (TJ)
Mounting Type
Surface Mount
Package / Case
16-VFQFN Exposed Pad
Supplier Device Package
16-VQFN (3x3)
Base Product Number
BQ24075
Datasheet & Documents
Manufacturer Product Page
BQ24075RGTR Specifications
HTML Datasheet
BQ24075RGTR-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
296-38874-2
BQ24075RGTRG4
BQ24075RGTRG4-DG
296-38874-1
TEXTISBQ24075RGTR
2156-BQ24075RGTR
BQ24075RGTR-DG
296-38874-6
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)
грудня 02, 2025
L’emballage écologique est un vrai plus, tout en offrant une protection excellente pour les produits.
грудня 02, 2025
Ils assurent une livraison rapide et un accompagnement après-vente qui me donnent une grande confiance.
грудня 02, 2025
Der Service nach dem Kauf ist bei DiGi Electronics wirklich erstklassig. Immer hilfsbereit und schnell.
грудня 02, 2025
I’m impressed by how DiGi Electronics keeps prices low while maintaining a high level of customer support.
грудня 02, 2025
Support staff are always courteous and go above and beyond to assist.
грудня 02, 2025
The consistency in product quality from DiGi Electronics is remarkable; every item works as intended without issues.
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Working with DiGi Electronics has been a positive and dependable experience.
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Frequently Asked Questions (FAQ)
What are the key design risks when using the BQ24075RGTR in a space-constrained wearable device with intermittent USB power input, and how can I mitigate thermal and reliability issues?
The BQ24075RGTR’s 16-VQFN (3x3) package and exposed thermal pad make it suitable for compact wearables, but its 1.5A max charge current can generate significant heat in confined spaces—especially with poor PCB layout or inadequate copper pour under the thermal pad. Intermittent USB power (e.g., from unstable host ports) may trigger repeated charge cycles, increasing thermal stress and reducing long-term reliability. To mitigate this, ensure a solid ground plane connected to the exposed pad via multiple vias, limit charge current to ≤1A via the ISET resistor if thermal headroom is limited, and implement input voltage hysteresis or software-based debounce on the /PGOOD signal to prevent erratic behavior during brownouts.
Can the BQ24075RGTR safely replace a BQ24073RGTR in an existing 1-cell Li-ion design without hardware changes, and what functional differences should I watch for?
While the BQ24075RGTR and BQ24073RGTR share the same 16-VQFN package and base functionality, the BQ24075RGTR includes an integrated USB input current limiter (up to 1.5A) and dynamic power management (DPM), which the BQ24073 lacks. This means the BQ24075RGTR can better handle variable input sources like underpowered USB hosts. However, if your original design relied on external current-limiting circuitry for USB compliance, you may need to remove or reconfigure those components. Also, verify that the ISET and timer resistor values match your desired charge profile, as default settings differ—failing to adjust these could lead to overcharging or premature termination.
How does the BQ24075RGTR handle reverse polarity or accidental battery connection during assembly, and what protection features should I reinforce externally?
The BQ24075RGTR includes reverse-current protection to prevent battery discharge back into the input when VIN is absent, but it does *not* provide reverse-polarity protection for the battery or input terminals. If a user or assembler connects the battery backwards, the IC could be damaged despite its internal safeguards. To mitigate this risk, add a Schottky diode in series with the battery positive terminal or use a MOSFET-based ideal diode circuit. Additionally, include input TVS diodes rated for USB ESD (IEC 61000-4-2) to protect against transient events, as the IC’s absolute maximum ratings (6.4V max) leave little margin for surge voltages common in field-deployed devices.
What are the trade-offs of disabling the BQ24075RGTR’s safety timer to extend charging time in cold environments, and how does this impact long-term battery health?
Disabling the BQ24075RGTR’s internal safety timer (by leaving the TS pin floating or misconfiguring it) may seem necessary in cold environments where Li-ion batteries charge slower and may not reach termination current within the default 4–8 hour window. However, this eliminates a critical fail-safe: without the timer, a faulty cell or communication error could result in indefinite charging, risking thermal runaway. Instead of disabling the timer, reduce the charge current via ISET to improve charge acceptance at low temperatures (per battery manufacturer guidelines), and consider using the TS pin with a thermistor to enable temperature-compensated charging. Always validate extended charge durations with your specific cell under worst-case conditions.
Is the BQ24075RGTR suitable for always-on industrial IoT devices powered by USB bus power with frequent sleep/wake cycles, and how should I manage quiescent current and fault recovery?
Yes, the BQ24075RGTR is well-suited for always-on USB-powered IoT devices due to its low quiescent current (~55µA in standby) and robust fault handling. However, frequent sleep/wake cycles can cause repeated charge initiations, especially if the system draws pulsed loads that momentarily drop VIN below UVLO. This may trigger unnecessary re-charging cycles, reducing efficiency and stressing the battery. To optimize performance, use the CHG_OK output to gate system load during charging, implement hysteresis in firmware to delay wake-up until VBAT is sufficiently charged, and ensure the input capacitor (≥10µF low-ESR) is placed close to the VIN pin to stabilize voltage during load transients. Also, monitor the /PGOOD signal to detect input faults and avoid entering charge mode during unstable supply conditions.
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.
BQ24075RGTR CAD Models
Texas Instruments BQ24075RGTR PCB symbols & footprints
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