BQ77PL900 The Texas Instruments BQ77PL900 is a versatile battery protector and analog front end IC designed for 5 to 10 series cell lithium-ion or lithium-polymer battery packs.
Mfr Part #:

BQ77PL900

Available from 1 distributors
Mfr Name: Texas Instruments
Texas Instruments
The Texas Instruments BQ77PL900 is a versatile battery protector and analog front end IC designed for 5 to 10 series cell lithium-ion or lithium-polymer battery packs.
✓ Total Stock: 2,025 pcs
$ Price Range: $0.75

BQ77PL900 Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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2,025 pcs
2025 pcs On Request 1 On Request On Request 24+ On Request On Request

BQ77PL900 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Industrial Grade
Medical Grade
Military Grade
Operating Temperature

BQ77PL900 Description

Short technical summary and product information.

The BQ77PL900 from Texas Instruments is an integrated circuit designed for primary protection of 5 to 10 series cell lithium-ion and lithium-polymer battery packs. It functions as both a battery protector and an analog front end (AFE), offering comprehensive safety features.

 

Key electrical specifications include a wide supply voltage range from 7 V to 50 V and a low typical supply current of 450 μA. The device integrates two LDOs: a 5-V, 25-mA LDO and a 3.3-V, 25-mA LDO, which can be used to power a host controller or support circuitry. It is capable of operating with a low 1-mΩ sense resistor for current monitoring.

 

The BQ77PL900 provides programmable thresholds and delay times for overvoltage, undervoltage, overcurrent in discharge, and short circuit in discharge conditions. It also features fixed overtemperature protection. Communication and control can be managed via an I2C interface for host control mode, or it can operate in a stand-alone mode for pack protection control and recovery.

 

This IC is suitable for applications such as cordless power tools, power-assisted bicycles/scooters, uninterruptible power supply (UPS) systems, and medical equipment. It is available in an SSOP (DL) package with dimensions of 15.88 mm x 10.35 mm.

BQ77PL900 Quick Information

Product Type: Battery Protector
Canonical Name: BQ77PL900 5-10 Series Cell Lithium-Ion Battery Protector and Analog Front End
Subcategory: Analog Front End (AFE)

BQ77PL900 Compliance

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

BQ77PL900 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

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

BQ77PL900 Features

  • Protects 5 to 10 series Li-ion cells.
  • Operates from 7V to 50V supply.
  • Low 450μA typical operating current.
  • Integrated 5V and 3.3V LDOs.
  • I2C interface for host control.

BQ77PL900 Applications

  • Protecting multi-cell lithium-ion battery packs.
  • Powering portable medical device battery systems.
  • Monitoring industrial equipment energy storage units.
  • Managing electric vehicle auxiliary battery modules.
  • Safeguarding consumer electronics rechargeable batteries.

BQ77PL900 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the supply voltage range for the BQ77PL900?

The BQ77PL900 operates with a supply voltage range of 7 V to 50 V.

What package type does the BQ77PL900 use?

The BQ77PL900 is housed in an SSOP package.

What is the operating temperature range?

The device functions reliably between -40°C and 100°C.

How many series cells can this battery management IC support?

It supports configurations of 5 to 10 series cells.

Does the BQ77PL900 include integrated voltage regulators?

Yes, it integrates 5 V and 3.3 V LDOs capable of delivering up to 25 mA each.

What is the typical quiescent current consumption?

The typical operating current is 450 μA.

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