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BQ24193RGET
Texas Instruments
IC BATT CHG LI-ION 1CELL 24VQFN
66018 Pcs New Original In Stock
Charger IC Lithium Ion/Polymer 24-VQFN (4x4)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (84 Ratings)
BQ24193RGET
Product Overview
1238873
DiGi Electronics Part Number
BQ24193RGET-DGManufacturer
Texas Instruments
BQ24193RGET
Description
IC BATT CHG LI-ION 1CELL 24VQFNInventory
66018 Pcs New Original In Stock
Charger IC Lithium Ion/Polymer 24-VQFN (4x4)
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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BQ24193RGET Technical Specifications
Category
Power Management (PMIC), Battery Chargers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
-
Product Status
Active
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
1
Current - Charging
Constant - Programmable
Programmable Features
-
Fault Protection
Over Current, Over Temperature, Over Voltage
Charge Current - Max
4.5A
Battery Pack Voltage
4.2V
Voltage - Supply (Max)
17V
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
BQ24193
Datasheet & Documents
HTML Datasheet
BQ24193RGET-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
296-35109-6
TEXTISBQ24193RGET
2156-BQ24193RGET
296-35109-2
296-35109-1
Standard Package
250
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
Ich kann nur Positives berichten: Das Preisangebot ist großartig, und das Personal ist sehr zuvorkommend.
de desembre 02, 2025
Their customer support team is proactive and incredibly responsive.
de desembre 02, 2025
I am very satisfied with how quickly my items arrived and the cost savings.
de desembre 02, 2025
Shipping is always on time, which I greatly appreciate.
de desembre 02, 2025
The speed of their shipping has helped me reduce lead times and accelerate my projects.
de desembre 02, 2025
The durability of the products I received from Di Digi Electronics is remarkable, even after extended use.
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Frequently Asked Questions (FAQ)
What are the key thermal design considerations when using the BQ24193RGET in high-current charging applications above 3A?
When operating the BQ24193RGET at charge currents above 3A, thermal performance becomes critical due to power dissipation in the internal FETs and PCB traces. The 24-VQFN (4x4) package has an exposed thermal pad that must be properly soldered to a sufficient copper pour (minimum 1 in² of 2 oz copper recommended) connected via multiple vias to internal ground planes to ensure efficient heat transfer. Without adequate thermal design, the device may trigger its built-in over-temperature protection, leading to intermittent charging or reduced charge rates. Designers should simulate power loss using typical VIN=5V and ICHG=4.5A scenarios, monitor junction temperature in the lab under worst-case ambient conditions (up to 85°C), and consider derating charge current if thermal constraints can't be fully addressed. Use of thermal relief on the GND pad and minimizing thermal resistance in the layout are essential for reliable high-current operation.
Can the BQ24193RGET replace the BQ24195L in an existing 1-cell Li-ion design, and what changes are required?
Yes, the BQ24193RGET can serve as a drop-in replacement for the BQ24195L in 1-cell Li-ion charging applications, but with important trade-offs. Both devices use the same 24-VQFN (4x4) package and support up to 4.5A charging, but the BQ24195L includes integrated system power path management (which the BQ24193RGET lacks), meaning the BQ24193RGET directly connects the battery to the system without independent regulation. If your design relies on 'load as you charge' functionality or system rail stability during battery removal, a discrete PFET and additional circuitry will be needed externally. Additionally, verify I2C register compatibility—some control bits differ, requiring firmware adjustments. Confirm that your host MCU can handle the slightly different fault reporting and STAT pin behavior to avoid misinterpretation of charger status.
How does input voltage quality affect BQ24193RGET performance, and what filtering is recommended for automotive or noisy DC sources?
The BQ24193RGET can accept up to 17V on its input, making it suitable for USB PD and some automotive applications, but it is sensitive to voltage transients and ringing due to its synchronous switching architecture. In electrically noisy environments like automotive 12V systems or long USB cables, poor input quality can cause false OVP (over-voltage protection) triggers or instability in the control loop. To mitigate this, design-in a low-ESR ceramic input capacitor (≥10μF) close to the VIN and PGND pins, and add a transient voltage suppressor (TVS) diode rated for 18V when exposed to load dumps. Additionally, a small ferrite bead in series with VIN (e.g., 600Ω @ 100MHz) followed by 22μF of bulk capacitance can reduce high-frequency noise without affecting startup behavior. Monitor VIN ripple under dynamic load using a 100MHz+ oscilloscope to ensure it stays below 2Vpp to prevent erratic behavior.
What are the risks of using the BQ24193RGET without proper I2C pull-up resistors, and how should the interface be robustly implemented?
Operating the BQ24193RGET without properly sized I2C pull-up resistors can lead to communication failures, spurious register writes, or stuck states that prevent charging. Since the BQ24193RGET relies on I2C for setting charge current, termination voltage, and monitoring faults, unreliable communication risks safety and performance. Use pull-up resistors between 1.5kΩ and 4.7kΩ on both SDA and SCL lines, depending on bus capacitance (keep below 400pF). Place resistors close to the BQ24193RGET, and tie them to a stable 3.3V source (not VBUS, which may be unpowered). For noisy environments, add 100Ω series resistors near the BQ24193RGET pins to dampen ringing. Always validate I2C signaling with an oscilloscope, checking rise times (should be <300ns for 400kHz) and noise margin. Consider software retry logic in firmware to handle occasional bus errors and prevent lockup.
How does the BQ24193RGET handle charge termination and recharging, and what pitfalls exist in battery voltage tracking?
The BQ24193RGET uses voltage-based charging with a fixed 4.2V termination threshold (±0.5%) for 1-cell Li-ion batteries and requires a 100mV hysteresis (4.1V) for recharge; this is not user-programmable. A key pitfall arises when system load current affects C/10 detection—since the BQ24193RGET measures charge current into the battery only, if the system simultaneously draws current, it can mask the true battery taper current, delaying or preventing termination. This 'load current interference' increases the risk of overcharging or thermal stress. To mitigate this, ensure the battery is decoupled from heavy transient system loads during charging, or increase the recharge threshold margin in software via external monitoring. Avoid using the BQ24193RGET in high-leakage environments where self-discharge could cause rapid cycling between charge and recharge states, accelerating battery wear.
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.
BQ24193RGET CAD Models
Texas Instruments BQ24193RGET PCB symbols & footprints
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