Texas Instruments BQ2018SN-E1TR

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Product attributes Property Value
Manufacturer Texas Instruments
Product Series Power Minder™
Packaging Marketplace | Tape & Reel (TR)
Function Battery Monitor
Battery Chemistry Multi-Chemistry
Number of Cells 1 ~ 4
Fault Protection -
Interface HDQ
Operating Temperature -20°C ~ 70°C (TA)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Supplier Device Package 8-SOIC
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Texas Instruments BQ2018SN-E1TR is a versatile Battery Monitor supporting multi-chemistry battery packs. It is designed to track the charge and discharge of 1 to 4 cells, providing essential fuel gauging data through a simple HDQ interface. Housed in a compact 8-SOIC package, this IC operates within a temperature range of -20°C to 70°C, making it suitable for a wide array of consumer and portable electronic devices. Its flexible chemistry support makes it a practical choice for diverse battery configurations.

  • Multi-Chemistry Flexibility: Supports various battery chemistries, allowing for design flexibility and use with different cell types.
  • Simple HDQ Interface: The single-wire HDQ interface simplifies PCB layout and reduces pin count, ideal for compact designs.
  • Compact SOIC Package: The small 8-SOIC footprint is perfect for space-constrained portable applications.
  • Broad Cell Support: Monitors 1 to 4 cells, covering a wide range of battery pack configurations.

Consumer Electronics Battery Packs

The BQ2018SN-E1TR is well-suited for battery packs in devices like digital cameras and portable media players. Its multi-chemistry support allows manufacturers to use different cell types, while the HDQ interface provides a simple, low-pin-count connection for fuel gauging in space-constrained designs.

Portable Test Equipment

For handheld multimeters and signal analyzers, this battery monitor offers reliable capacity tracking. The 1 to 4 cell support covers common pack sizes, and the -20°C to 70°C range is adequate for typical indoor and outdoor field use, ensuring accurate battery status for professionals.

Legacy Portable Electronics

This IC is an excellent choice for maintaining or designing battery management for older or cost-sensitive portable devices. Its HDQ interface is straightforward to implement, and the 8-SOIC package is easy to integrate into existing PCB layouts, providing a practical upgrade path for battery monitoring.

Smart Home Sensors and IoT Devices

In battery-powered IoT sensors, the BQ2018SN-E1TR can monitor a single-cell Lithium pack or a multi-cell alkaline/NiMH pack. The low complexity of the HDQ interface helps minimize power consumption, extending the operational life of remote devices while providing essential battery status data.

Portable Barcode Scanners

For warehouse and retail barcode scanners, this monitor ensures that battery life is accurately communicated to the user. The multi-chemistry capability allows the same PCB to be used with different battery types, simplifying inventory and reducing design complexity for manufacturers.

Q: What is the function of the BQ2018SN-E1TR?
A: It is a Battery Monitor IC designed for multi-chemistry battery packs.
Q: How many cells can this device monitor?
A: It supports monitoring for 1 to 4 cells.
Q: What communication interface does the BQ2018SN-E1TR use?
A: It uses the HDQ interface for communication with a host controller.
Q: What is the operating temperature range?
A: The operating temperature range is -20°C to 70°C (TA).
Q: What package is this IC available in?
A: It is available in an 8-SOIC (0.154", 3.90mm Width) package.
Q: What battery chemistries are supported?
A: It supports multi-chemistry, including common rechargeable types.
Base Product Number : BQ2018SN
1-4 Cells Battery Management Battery Monitor BMS HDQ Multi-Chemistry SOIC Texas Instruments
Q: What is the function of the BQ2018SN-E1TR?
A: It is a Battery Monitor IC designed for multi-chemistry battery packs.
Q: How many cells can this device monitor?
A: It supports monitoring for 1 to 4 cells.
Q: What communication interface does the BQ2018SN-E1TR use?
A: It uses the HDQ interface for communication with a host controller.
Q: What is the operating temperature range?
A: The operating temperature range is -20°C to 70°C (TA).
Q: What package is this IC available in?
A: It is available in an 8-SOIC (0.154", 3.90mm Width) package.
Q: What battery chemistries are supported?
A: It supports multi-chemistry, including common rechargeable types.