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TI BQ21040DBVR
This charger is specifically designed for charging a single Li-Ion or Li-Pol battery with an input current of 0.8A."
Brands: Texas Instruments
Mfr.Part #: BQ21040DBVR
Datasheet: BQ21040DBVR Datasheet (PDF)
Package/Case: SOT-23 (DBV)-6
RoHS Status:
Stock Condition: 9000 pcs, New Original
Product Type: Battery Management
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 5 | $0.323 | $1.615 |
| 50 | $0.263 | $13.150 |
| 150 | $0.238 | $35.700 |
| 500 | $0.206 | $103.000 |
| 3000 | $0.179 | $537.000 |
| 6000 | $0.170 | $1020.000 |
In Stock:9000 PCS
BQ21040DBVR General Description
The BQ21040DBVR is a highly-integrated battery charge management IC designed for single-cell Li-ion and Li-polymer batteries. It features a linear charger, voltage regulation, and a highly accurate voltage loop, making it ideal for portable applications.This IC has a programmable charge current up to 250mA, which can be adjusted via an external resistor. It provides protection features such as thermal regulation, over-voltage protection, and short-circuit protection to ensure safe and reliable charging.The BQ21040DBVR also includes a programmable input current limit to prevent overloading the input power source. It has a wide input voltage range of 4.2V to 6.2V, making it suitable for a variety of power sources.The small form factor and low power consumption make the BQ21040DBVR ideal for portable devices such as smartphones, tablets, and wearable electronics. Its advanced features and integrated design make it a convenient and efficient solution for battery charging applications
Features
Application
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Number of series cells | 1 | Charge current (max) (A) | 0.8 |
| Vin (max) (V) | 6.45 | Cell chemistry | Li-Ion/Li-Polymer |
| Battery charge voltage (min) (V) | 4.2 | Battery charge voltage (max) (V) | 4.2 |
| Absolute max Vin (max) (V) | 30 | Control topology | Linear |
| Control interface | Standalone (RC-Settable) | Features | BAT temp thermistor monitoring (hot/cold profile), Input OVP |
| Vin (min) (V) | 3.5 | Rating | Catalog |
| Operating temperature range (°C) | 0 to 125 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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BQ21040DBVR is a lithium-ion battery charger IC with power path management for single-cell applications. It maximizes battery life by optimizing charge current based on input source. The chip also supports USB Type-C and USB PD input sources for fast charging. It includes safety features like overvoltage protection, overcurrent protection, and thermal regulation to prevent damage to the battery.
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Equivalent
The equivalent products of BQ21040DBVR chip are the MCP73831 and MCP73832 from Microchip Technology, and the MAX1811 from Maxim Integrated. These chips are also lithium-ion battery charger ICs with similar features and functionality. -
Features
BQ21040DBVR is a highly integrated linear Li-Ion/Li-Pol charger with 1.5-A input current limit and 4.2-V/4.4-V battery voltage. It has a fixed 4.1-V charge voltage with 0.5% accuracy and integrated power FET for simplifying design. It provides USB-OTG support and thermal regulation for efficient charging. -
Pinout
BQ21040DBVR is a single-cell battery charger with power path management in a small package. The pin count is 6, and the functions include battery charge and discharge protection, charging status indication, and thermal regulation. -
Manufacturer
The manufacturer of the BQ21040DBVR is Texas Instruments. Texas Instruments is a semiconductor company that specializes in designing and manufacturing analog and digital semiconductor technologies. They create a wide range of products including microcontrollers, power management, and sensor technologies for various industries such as automotive, industrial, and consumer electronics. -
Application Field
The BQ21040DBVR is commonly used in portable and wearable devices such as smartwatches, fitness trackers, and medical devices. It is suitable for applications where small form factor, low power consumption, and high efficiency are required for charging lithium-ion or lithium-polymer batteries from a USB power source. -
Package
The BQ21040DBVR is a chip that comes in a SOT-23 package type, with a small form factor and size of 2.9mm x 3mm. It is designed for battery charging applications and incorporates a USB 2.0 charging port.
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