Mfr Part #:

BQ77910DBTR

The Texas Instruments BQ77910DBTR is a multi-function battery management IC designed for Lithium Ion/Polymer battery packs. It supports 4 to 10 series cells and offers comprehensive fault protection.

✓ Total Stock: 2,300 pcs

$ Price Range: $0.75

BQ77910DBTR Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	2,300 pcs On Request	2300 pcs	On Request	1	On Request	On Request	10+	On Request	On Request

BQ77910DBTR Description

Short technical summary and product information.

The Texas Instruments BQ77910DBTR is a precision protector and cell-balancing device for Li-ion/polymer battery packs. It monitors 4 to 10 series cell voltages and provides outputs to drive N-channel MOSFETs for power path interruption.

Key features include automatic cell balancing, individual cell-voltage monitoring, and low-side NMOS FET drive for charge and discharge control. The device supports a supply voltage range from 5.6 V to 50 V and is compatible with 1-mΩ current-sense resistors. It offers programmable protection functions with a wide range of detection thresholds and delay times.

Fixed hardware protection functions include preset overtemperature protection, open-cell detection, and open/shorted thermistor detection. The bq77910 also features brownout protection to prevent FET overheating under low-battery conditions.

This IC is housed in a 38-TSSOP package and is designed for surface mount applications. It operates within a temperature range of -25°C to 85°C.

BQ77910DBTR Quick Information

Product Type: Battery Management IC

Series: BQ77910

Canonical Name: BQ77910 Stand-Alone Multi-Cell Lithium-Ion/Polymer Precision Protector

Subcategory: Precision Protectors

BQ77910DBTR Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BQ77910DBTR Estimated Pricing

Qty	Low	High
1+	$0.75	$0.75

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

BQ77910DBTR Features

Supports 4 to 10 series Li-ion/Polymer cells.
Automatic cell balancing with 50-mA circuits.
Programmable protection for over/under voltage and current.
Wide supply voltage range from 5.6 V to 50 V.
Surface mount 38-TSSOP package.

BQ77910DBTR Applications

Ideal for cordless power tools.
Suitable for electric bikes and LEVs.
Used in UPS and medical equipment.
Applicable for cordless lawn equipment.

BQ77910DBTR FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating temperature range for the BQ77910DBTR?

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

How many cells can the BQ77910DBTR protect?

It can protect 4 to 10 series cells.

What battery chemistry is supported by the BQ77910DBTR?

It supports Lithium Ion/Polymer battery chemistry.

What types of fault protection does the BQ77910DBTR offer?

It offers protection against Over Current, Over Temperature, Over/Under Voltage, and Short Circuit.

What is the supply voltage range for this device?

The supply voltage range is from 5.6 V to 50 V.

Does the BQ77910DBTR feature automatic cell balancing?

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

What package type is the BQ77910DBTR supplied in?

It is supplied in a 38-TSSOP package.

Category	Battery Management
Manufacturer Name	Texas Instruments
Battery Chemistry	Lithium Ion/Polymer
Fault Protection	Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Function	Multi-Function Controller
Interface	I2C
Mounting Type	Surface Mount
Number of Cells	4-10
Operating Temperature	-25°C ~ 85°C
Package / Case	38-TSSOP
Supplier Device Package	38-TSSOP
Supply Voltage	5.6 V to 50 V
Tape & Reel	Tape & Reel