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BQ77908DBTR The Texas Instruments BQ77908DBTR is a multi-function battery protection IC designed for 4 to 8 series Lithium Ion/Polymer cells. It offers comprehensive fault protection.
Mfr Part #:

BQ77908DBTR

Available from 2 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ77908DBTR is a multi-function battery protection IC designed for 4 to 8 series Lithium Ion/Polymer cells. It offers comprehensive fault protection.
✓ Total Stock: 5,236 pcs
$ Price Range: $0.75

BQ77908DBTR Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
2,824 pcs
On Request
2824 pcs On Request 1 On Request On Request 1110+ On Request On Request
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,412 pcs
On Request
2412 pcs On Request 1 On Request On Request 11+ On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BQ77908DBTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
Supply Voltage
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BQ77908DBTR Description

Short technical summary and product information.

The BQ77908DBTR from Texas Instruments is a precision protector and cell-balancing device for Li-ion/polymer battery packs. It supports 4 to 8 series cells and provides individual cell-voltage monitoring.

 

Key features include automatic cell balancing with internal 50-mA circuits, configurable for various operating modes. The device offers programmable protection functions such as cell overvoltage, cell undervoltage, pack discharge overcurrent, and pack charge short-circuit current.

 

Additional safety features include control for split power-path MOSFETs, open-cell sense-line detection, and detection of open or shorted external temperature sensors. The protector operates within a supply voltage range of 5.6 V to 40 V and features an integrated 3.3-V micro-power LDO regulator.

 

Packaged in a 38-TSSOP, the BQ77908DBTR is suitable for surface mount applications. It operates within a temperature range of -25°C to 85°C.

BQ77908DBTR Quick Information

Product Type: Battery Protection IC
Canonical Name: BQ77908DBTR Battery Protection IC
Subcategory: Battery Management

BQ77908DBTR Compliance

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

BQ77908DBTR Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BQ77908DBTR Features

  • Supports 4 to 8 series Lithium Ion/Polymer cells.
  • Provides automatic cell balancing functionality.
  • Offers programmable protection for voltage and current faults.
  • Integrated 3.3-V micro-power LDO regulator.
  • Packaged in a 38-TSSOP for surface mounting.

BQ77908DBTR Applications

  • Ideal for cordless power tools.
  • Suitable for electric bikes.
  • Used in UPS systems.
  • Applicable for medical equipment.
  • Designed for light electric vehicles.

BQ77908DBTR FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the BQ77908DBTR?

The supply voltage range is from 5.6 V to 40 V.

How many series cells does the BQ77908DBTR support?

It supports 4 to 8 series cells.

What battery chemistry is compatible with the BQ77908DBTR?

It is compatible with Lithium Ion/Polymer battery chemistries.

What is the operating temperature range for this IC?

The operating temperature range is -25°C to 85°C (TA).

What type of package is the BQ77908DBTR in?

It is available in a 38-TSSOP package.

What fault protection features are included?

It includes protection for Over Current, Over Temperature, Over/Under Voltage, and Short Circuit.

Does the BQ77908DBTR have automatic cell balancing?

Yes, it provides internal 50-mA automatic cell balancing.

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