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BQ2050SN-D119 The Texas Instruments BQ2050SN-D119 is a Lithium Ion gas gauge IC designed for battery pack integration. It features a 1-wire DQ communication interface and supports 2-4 series cells.
Mfr Part #:

BQ2050SN-D119

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ2050SN-D119 is a Lithium Ion gas gauge IC designed for battery pack integration. It features a 1-wire DQ communication interface and supports 2-4 series cells.
✓ Total Stock: 1,802 pcs
$ Price Range: $13.45

BQ2050SN-D119 Available from 2 distributors

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✓ Non-Authorised
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Optech Co.,Limited ✓
Non-Authorised Inventory information
951 pcs
On Request
951 pcs On Request 1 On Request On Request 99+ On Request On Request
Smaxon Electronics ✓
Non-Authorised Inventory information
851 pcs
On Request
851 pcs On Request 1 On Request On Request 04+ On Request On Request
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BQ2050SN-D119 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Features
Function
Mounting Type
Operating Temperature
Operating Temperature Range
Supplier Device Package
Supplier Package
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BQ2050SN-D119 Description

Short technical summary and product information.

The BQ2050SN-D119 from Texas Instruments is a Lithium Ion gas gauge IC intended for battery-pack or in-system installation to maintain an accurate record of available battery capacity. It supports 2-4 series Li-Ion/Li-Polymer cells and offers a battery capacity range from 500 mAh to 6000 mAh.

 

This IC monitors voltage drop across a sense resistor to determine charge and discharge activity, with compensations for battery temperature and rate. It features a 1-wire (DQ) communication interface and can provide external capacity indication via LEDs. The operating temperature range is 0°C to 70°C.

 

Designed for pack integration, the BQ2050SN-D119 is housed in a 16-SOIC package with surface mount capability. Its typical operating current is 120µA, enabling implementations in compact designs. Measurements are compensated for current and temperature, and self-discharge is compensated using an internal temperature sensor.

BQ2050SN-D119 Quick Information

Product Type: Battery Management IC
Series: Lithium Ion Power Gauge
Canonical Name: BQ2050SN-D119 Lithium Ion Gas Gauge IC
Subcategory: Gas Gauge

BQ2050SN-D119 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BQ2050SN-D119 Estimated Pricing

Qty Low High
1+ $13.45 $13.45

Estimated market price range - modelled values for guidance only, not live distributor offers.

BQ2050SN-D119 Features

  • Lithium Ion gas gauge IC.
  • Supports 2-4 series Li-Ion/Li-Polymer cells.
  • 1-wire (DQ) communication interface.
  • Coulomb counter for capacity measurement.
  • 16-SOIC surface mount package.

BQ2050SN-D119 Applications

  • Battery pack integration.
  • In-system battery monitoring.
  • Portable electronic devices.
  • Power tool battery packs.

BQ2050SN-D119 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the battery chemistry supported by the BQ2050SN-D119?

Lithium Ion.

How many series cells can this battery monitor support?

2 to 4 series cells.

What is the operating temperature range of the BQ2050SN-D119?

-20°C to 70°C (full range) and 0°C to 70°C (TA).

What is the package type of the BQ2050SN-D119?

16-SOIC (0.154", 3.90mm Width) surface mount.

What communication interface does the BQ2050SN-D119 use?

DQ.

What is the battery capacity range supported?

500 mAh to 6000 mAh.

Does the BQ2050SN-D119 have a Coulomb counter?

Yes, it features a Coulomb counter.

BQ2050SN-D119 Alternate Parts

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BQ2050SN-D119TRG4
BQ2050SN-D119TRG4
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The Texas Instruments BQ2050SN-D119TRG4 is a Lithium Ion gas gauge IC designed for battery pack integration. It features a 1-wire DQ communication interface and a 16-SOIC package.
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