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Name: BQ27421YZFR-G1A
Brand: Texas Instruments
SKU: BQ27421YZFR-G1A
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Texas Instruments BQ27421YZFR-G1A

Part No.:: BQ27421YZFR-G1A

Manufacturer:: Texas Instruments

Package:: 9-UFBGA, DSBGA

Datasheet:: BQ27421YZFR-G1A.pdf

Description:: IC FUEL GAUGE LI-ION 1CL 9DSBGA

In Stock:: 2064

Quantity:: Add To Cart

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BQ27421YZFR-G1A Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
Impedance Track™
ProductStatus:
Active
Function:
Battery Monitor
BatteryChemistry:
Lithium Ion
NumberofCells:
1
FaultProtection:
-
Interface:
I²C
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

BQ27421YZFR-G1A this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including BQ27421YZFR-G1A price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for BQ27421YZFR-G1A to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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BQ27421YZFR-G1A information

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BQ27421YZFR-G1A Typical application Circuitry

BQ27421YZFR-G1A

The BQ27421YZFR-G1A is a system-side lithium-ion battery fuel gauge IC from Texas Instruments, designed to provide accurate battery fuel gauging and state-of-charge (SOC) reporting in various portable devices. This IC employs an algorithm to measure the battery's charge state, providing data on remaining battery capacity, voltage, and temperature, making it highly suitable for applications like smartphones, tablets, wearables, and other portable electronics.

BQ27421YZFR-G1A: Functional Overview and Application Scenarios

Typical Applications

- Smartphones and Tablets: For real-time battery capacity and status monitoring.

- Wearable Devices: Used in smartwatches and fitness trackers for battery management.

- Portable Medical Devices: Ideal for ensuring reliable battery status information.

- Wireless Headphones: Employed to provide accurate battery life estimations.

Key Specifications

- Accurate State-of-Charge Reporting: Offers precise measurements of the remaining battery capacity.

- Low Power Consumption: Ideal for battery-operated devices.

- wide compatibility with battery voltage range: Accommodates a variety of lithium-ion battery chemistries.

- I2C Communication Interface: Enables easy integration with system microcontrollers.

Circuit Integration: BQ27421YZFR-G1A in a Smartphone

1. Battery Connection

- BAT (Pin 1): Connect to the positive terminal of the smartphone's lithium-ion battery.

2. Grounding and Data Communication

- GND (Pin 2): Connect to the system ground.

- I2C_SCL and I2C_SDA (Pins 3 and 4): Use for I2C communication with the smartphone's microcontroller.

3. Configuration and Calibration

- HDQ/SMBDATA (Pin 5): Attach to an HDQ bus or I2C data line for configuration or calibration data exchange.

- SYS (Pin 6): Connect to the system power rail.

4. Additional Functionalities and Safety

- NC (No Connection, Pins 7 and 8): These pins are not connected; leave them unconnected.

Design Considerations

- Battery Type Compatibility: Ensure the IC is compatible with the specific lithium-ion battery chemistry.

- I2C_SDA and I2C_SCL (Pins 3 and 4): Use to communicate via I2C with the microcontroller of the smartphone.

- Calibration and Configuration: Properly configure and calibrate the IC for accurate SOC reporting.

- System Integration: Seamlessly integrate the IC with the smartphone's power management system.

- Power Consumption Management: Optimize the system to minimize power drain.

- PCB Layout and Signal Integrity: Design the PCB to ensure signal integrity, particularly for I2C communication.

- Safety and Reliability: Incorporate necessary safety measures for battery monitoring.

- Quality Component Selection: Use high-quality components to enhance overall system reliability.

Integrating the BQ27421YZFR-G1A into a smartphone requires careful attention to these factors for accurate battery monitoring and enhanced system performance. For detailed specifications, including pin layout and electrical parameters, refer to the BQ27421YZFR-G1A's datasheet and technical documentation.

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6. What is the process for return or replacement of BQ27421YZFR-G1A?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the BQ27421YZFR-G1A we delivered, we will accept the replacement or return of the BQ27421YZFR-G1A only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of BQ27421YZFR-G1A.

(3)The PartNo is unused and only in the original unpacked packaging.

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