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HomeProductsIntegrated Circuits (ICs)PMIC - Battery ChargersBQ24075TRGTR
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BQ24075TRGTR - Texas Instruments

Manufacturer Part Number
BQ24075TRGTR
Manufacturer
Texas Instruments
Allelco Part Number
32D-BQ24075TRGTR
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
22,963 pcs available, New & Original
Parts Description
IC BATT CHG LI-ION 1CELL 16QFN
Package
16-VQFN (3x3)
Data sheet
BQ24075TRGTR.pdf

PCN Design/Specification

Cylindrical Battery Holders.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 22963
  • Unit Price: $1.167
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $1.167 $1.17
10+ $0.95 $9.50
30+ $0.814 $24.42
100+ $0.674 $67.40
500+ $0.612 $306.00
1000+ $0.583 $583.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

BQ24075TRGTR Tech Specifications
Texas Instruments - BQ24075TRGTR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - BQ24075TRGTR

Product Attribute Attribute Value
Manufacturer Texas Instruments
Voltage - Supply (Max) 6.4V
Supplier Device Package 16-VQFN (3x3)
Series -
Programmable Features Current, Timer
Package / Case 16-VFQFN Exposed Pad
Package Tape & Reel (TR)
Operating Temperature 0°C ~ 125°C (TJ)
Number of Cells 1
Product Attribute Attribute Value
Mounting Type Surface Mount
Interface USB
Fault Protection Over Temperature, Over Voltage, Reverse Current, Short Circuit
Current - Charging Constant - Programmable
Charge Current - Max 1.5A
Battery Pack Voltage 4.2V
Battery Chemistry Lithium Ion
Base Product Number BQ24075

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

BQ24075TRGTR Image
BQ24075TRGTR (1)

Manufacturer Part Number

BQ24075TRGTR

Manufacturer

Texas Instruments

Introduction

The BQ24075TRGTR is a highly integrated battery charger designed for charging lithium-ion cells, ideal for portable devices demanding power management solutions.

Product Features and Performance

Designed for single-cell lithium-ion batteries

Programmable charge current up to 1.5A

Supports USB interface for charging

Integrated fault protection for over temperature, over voltage, reverse current, and short circuit

Operating temperature range from 0°C to 125°C

Mounting type: Surface Mount

Package type: 16-VFQFN Exposed Pad

Product Advantages

High charge current capability enhances quick charging

Programmable features allow customization according to application needs

Comprehensive fault protection improves safety and extends product life

BQ24075TRGTR Image
BQ24075TRGTR (2)

Key Technical Parameters

Battery Chemistry: Lithium Ion

Number of Cells: 1

Charge Current Max: 1.5A

Battery Pack Voltage: 4.2V

Voltage Supply (Max): 6.4V

Quality and Safety Features

Over temperature protection

Over voltage protection

Reverse current protection

Short circuit protection

Compatibility

Compatible with USB-powered devices for charging

Suitable for various single-cell lithium-ion battery applications

Application Areas

Portable consumer electronics

Power banks

Handheld devices

Product Lifecycle

Currently in Active status

Not nearing discontinuation, ensuring ongoing availability

Upgrades and replacements readily available

Several Key Reasons to Choose This Product

High charging capability for faster recharge times

Customizable charging parameters for diverse applications

Robust fault protection features ensure reliability and safety

Wide operating temperature range suitable for various environments

Active product lifecycle stage with Texas Instruments' support and availability

Frequently Asked Questions(FAQ)

How does the BQ24075TRGTR handle thermal management during high-current charging of a single-cell lithium-ion battery, and what design considerations are necessary to ensure reliable operation up to 1.5A?
The BQ24075TRGTR integrates over-temperature protection that monitors internal junction temperature and reduces or halts charging if thermal limits are exceeded. During sustained 1.5A charging, power dissipation in the 16-VQFN package can reach approximately 0.8W under typical conditions, necessitating adequate PCB copper area for heat spreading. Without sufficient thermal relief, localized heating may trigger false thermal shutdowns or degrade long-term reliability. Designers should allocate at least 4–6 square inches of inner-layer copper or multiple vias connecting to a ground plane to maintain TJ within the –40°C to +150°C absolute maximum rating.
What is the recommended input voltage range for reliable operation of the BQ24075TRGTR, and how does it behave when exposed to transient USB voltage spikes above 5.5V?
The device operates from an input supply of 3.9V to 6.4V, with nominal operation at 5V USB. Inputs exceeding 6.4V risk damaging the IC due to lack of reverse-battery protection beyond this threshold. While not specifically rated for surge immunity, brief transients below 7V may be tolerated depending on duration and clamping circuitry, but prolonged exposure above 6.4V compromises gate oxides and bond wires. Implementing a TVS diode or series resistor-capacitor network at the VBUS pin is advisable when interfacing with unregulated sources like automotive USB ports.
Can the BQ24075TRGTR safely charge a lithium-ion cell using only solar panel input without additional regulation, and what constraints apply?
Direct charging from an unregulated solar panel is generally unsafe due to variable output voltage and potential reverse current flow during low-light conditions. The BQ24075 requires a stable input above the battery’s 4.2V regulation point and provides no MPPT functionality. If used with solar, a buck-boost converter or dedicated solar charger IC should precondition the input to maintain VIN within 4.5V–6.0V while ensuring IIN never exceeds 1.5A continuously. Without such conditioning, the system risks inefficient charging, missed regulation windows, or reverse leakage through parasitic diodes.
How does the BQ24075TRGTR compare to the BQ24072 in terms of charge current capability and programmable features for space-constrained portable designs?
The BQ24075TRGTR supports up to 1.5A continuous charge current via an integrated FET, whereas the BQ24072 maxes out at 1A. Both use similar 16-pin QFN packages and share comparable protection features, but the BQ24075 offers higher power density for fast-charging applications. Programmability is equivalent—both allow ICHG and TIMER settings via I²C—but the BQ24075’s higher current makes it preferable when battery capacity exceeds 2000mAh. For smaller form factors where 1A suffices, the BQ24072 may reduce bill-of-materials cost slightly, though the difference is marginal given shared base architecture.
Is it possible to cascade multiple BQ24075TRGTR devices to support multi-cell battery stacks, and what challenges would arise?
No, the BQ24075TRGTR is explicitly designed for single-cell Li-Ion/Li-Po chemistry and lacks balancing or stacking logic. Attempting to connect two in series would expose each to full stack voltage during off-states, violating absolute maximum ratings. Additionally, the internal charge pump and pass FET cannot tolerate voltages above 6.4V. True multi-cell charging requires dedicated PMICs like the BQ25601, which include cell monitoring, balancing, and safe sequencing. Using the BQ24075TRGTR in multi-cell configurations violates safety standards and voids reliability guarantees.
What external components are critical for setting the 1.5A charge current, and how sensitive is this configuration to resistor tolerance?
Charge current is set via a sense resistor RSNS connected between the BAT pin and load. For 1.5A, TI recommends RSNS = 10mΩ with 1% tolerance; using 5% resistors introduces ±10% variation in ICHG, potentially leading to 1.35A–1.65A output. The formula ICHG = (0.1 / RSNS) yields 10A for 10mΩ, but the actual limit is clamped by internal logic to 1.5A regardless. Thus, while resistor choice doesn’t exceed max current, precision affects efficiency and thermal performance—higher-than-nominal current increases conduction losses (P = I²R ≈ 2.25W at 1.5A), raising die temperature.
Does the BQ24075TRGTR support trickle charging or pre-conditioning for deeply discharged cells, and how is this configured?
Yes, the device includes automatic pre-charge mode for cells below 3.0V, sourcing up to 100mA until voltage crosses the threshold. This feature prevents damage to cells that have dropped below safe operating levels due to self-discharge. The pre-charge current is fixed and not user-programmable. Once Vbat > 3.0V, normal constant-current charging resumes. Users must ensure the input source can sustain at least 100mA during this phase, which is typically feasible from standard USB hosts.
What happens if the BQ24075TRGTR detects a short circuit on the BAT terminal, and how quickly does fault recovery occur after removal?
Upon detecting a short (VBAT < 0.5V for >100ms), the device enters hiccup mode—reducing charge current to near zero and retrying every 32 seconds. This protects both the IC and the battery from excessive stress. Recovery occurs automatically once the fault is cleared and VIN remains present. However, repeated triggering may indicate a persistent fault such as a failed battery or inadequate trace routing. Designers should verify load impedance and avoid placing high-impedance loads directly across BAT during testing.
How does the BQ24075TRGTR interface with microcontrollers for status monitoring, and what registers provide real-time feedback?
The BQ24075TRGTR communicates via SMBus/I²C with an address of 0x6B. Key registers include STATUS (byte 0x08), which indicates CHRG_STAT, FAULT_STAT, and VBUS_STAT bits, and CHARGE_CURRENT (0x04), which reflects programmed ICHG. These allow firmware to detect faults, monitor charging phases (pre-charge, CC, CV, done), and adjust parameters dynamically. Reading these registers enables predictive maintenance and user notification systems, though polling frequency should balance responsiveness with bus overhead.
In what scenarios would choosing the BQ24075TRGTR over a linear charger improve system efficiency, and what are the trade-offs?
The BQ24075TRGTR uses a switch-mode topology, making it significantly more efficient than linear chargers when input voltage exceeds battery voltage by more than ~0.5V. For example, charging a 4.2V cell from 5V USB yields ~80% efficiency in a linear charger versus ~92% in the BQ24075TRGTR. However, switch-mode designs generate higher EMI and require careful layout to minimize noise coupling. Linear alternatives avoid switching artifacts but waste power as heat, limiting use cases to low-current or thermally constrained environments.
What is the minimum required capacitance at the VBUS and BAT pins for stable operation, and why is bypassing important?
TI specifies 4.7µF ceramic capacitors at both VBUS and BAT pins to stabilize internal regulators and suppress high-frequency transients. Insufficient capacitance leads to voltage droop during current surges, potentially causing undervoltage lockout or false fault detection. Ceramic X7R or X5R types are preferred for their stability over temperature and bias. Place capacitors as close as possible to the pins to minimize loop inductance and ensure transient response meets internal timing requirements.
Can the BQ24075TRGTR operate without an I²C connection, and what functionality is lost?
Yes, default operation occurs without I²C traffic: the device charges at 1.5A with a 4-hour timer unless overridden. All safety features remain active. However, disabling I²C forfeits programmability—users cannot reduce current for thermal reasons, extend timeout, or read status. This mode suits simple drop-in replacements but offers no visibility into system health. Most modern designs leverage I²C for adaptive charging profiles based on ambient temperature or battery age.
How does moisture sensitivity level (MSL) 2 affect storage and handling of the BQ24075TRGTR, and what precautions apply before reflow?
MSL 2 indicates the part can withstand one year of shelf life at 30°C/60% RH before requiring bake. Exposure beyond this period increases popcorning risk during soldering. Before assembly, store parts in dry packaging with desiccant; if opened, use within 168 hours at <30% RH or bake at 125°C for 24 hours. Reflow per J-STD-020 profile with peak temperature ≤260°C and dwell time ≤60 seconds to preserve bond integrity.
What are the key differences between the Digi-Reel® and Cut Tape (CT) packaging options for the BQ24075TRGTR in automated assembly workflows?
Digi-Reel® is designed for high-speed pick-and-place machines with continuous tape feeding and sprocket holes aligned to industry standards. Cut Tape provides discrete units on carrier tape but lacks indexing features, requiring custom handling or secondary processing. Digi-Reel® improves throughput and reduces misfeed errors in mass production, while CT may suit low-volume prototyping or hand-assembly. Both formats comply with EIA-481 and use identical moisture barriers, so shelf life remains unchanged.
Is reverse polarity protection provided at the input side of the BQ24075TRGTR, and how should it be implemented if needed?
The device includes back-to-back MOSFETs that block reverse current when VIN < Vbat, but this protection is limited to forward-biased conditions and does not tolerate sustained reverse polarity. To protect against accidental inversion, add an external P-channel MOSFET or Schottky diode in series with VBUS. A diode alone causes ~0.3V dropout and wastes power; a MOSFET solution adds minimal resistance (~5mΩ) and preserves efficiency while blocking reverse voltage.
How does the operating temperature range influence charge termination accuracy, and what compensation strategies exist?
The BQ24075TRGTR maintains ±1% charge termination accuracy across 0°C to 125°C, but lithium-ion cells themselves exhibit reduced capacity at low temperatures. At 0°C, full charging may require longer CV phase due to sluggish ion diffusion. Conversely, at 45°C+, accelerated aging occurs even at partial states of charge. Designers should implement temperature sensing near the battery pack and optionally reduce ICHG during hot conditions using I²C writes to STATUS register bitfields, balancing speed with longevity.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments BQ24075TRGTR

Product Attribute BQ24075TRGTT BQ24075RGTRG4 BQ24075RGTR BQ24075QRGTRQ1
Part Number BQ24075TRGTT BQ24075RGTRG4 BQ24075RGTR BQ24075QRGTRQ1
Manufacturer Texas Instruments Luminary Micro / Texas Instruments Texas Instruments Texas Instruments
Programmable Features - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Charge Current - Max - - - -
Fault Protection - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply (Max) - - - -
Battery Pack Voltage - - - -
Current - Charging - - - -
Interface - - - -
Number of Cells - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Battery Chemistry - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

BQ24075TRGTR Datasheet PDF

Download BQ24075TRGTR pdf datasheets and Texas Instruments documentation for BQ24075TRGTR - Texas Instruments.

HTML Datasheet
Cylindrical Battery Holders.pdf
PCN Design/Specification
Cylindrical Battery Holders.pdf
PCN Packaging
QFN,SON Reel Diameter 13/Sep/2013.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

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BQ24075TRGTR Image

BQ24075TRGTR

Texas Instruments
32D-BQ24075TRGTR

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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