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Texas Instruments BQ40Z50RSMT Microcontrollers

1-4 series Li-ion battery pack manager | battery fuel (gas) gauge 32-VQFN -40 to 85

24,000 ActiveTexas InstrumentsBQ40Z32-VFQFN Exposed Pad$6.69
BQ40Z50RSMT 32-VFQFN Exposed Pad package illustration

Same model may have multiple batches, images only for reference.

BQ40Z50RSMT
Manufacturer
Part Number (MPN)
BQ40Z50RSMT
Base Model
Detailed Description
1-4 series Li-ion battery pack manager | battery fuel (gas) gauge 32-VQFN -40 to 85
Package
32-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
PDF BQ40Z50RSMT Datasheet
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Ordering Code Family

BQ40Z groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

6 ordering variants listed on the family page.

View all variants

Technical Specifications

Texas Instruments BQ40Z50RSMT Microcontrollers technical specifications.

General

Interface
SMBus
RoHS
Yes
Package / Case
32-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Lifecycle Status
Active
Battery Chemistry
Lithium Ion/Polymer
Number of Cells
1 ~ 4
Fault Protection
Over Current, Over Temperature, Over/Under Voltage, Short Circuit
Function
Multi-Function Controller

Related Parts Comparison (BQ40Z50RSMT vs BQ40Z60RHBR vs BQ40Z60RHBT vs BQ40Z50RSMT-R2)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case32-VFQFN Exposed Pad32-VFQFN Exposed Pad32-VFQFN Exposed Pad32-VFQFN Exposed Pad
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
InterfaceSMBusSMBusSMBusSMBus
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
Battery Capacity Max Mah65000290002900065000
Battery Capacity Min Mah100100100100
Battery ChemistryLithium Ion/PolymerLithium Ion/PolymerLithium Ion/PolymerLithium Ion/Polymer
Cell BalancingExternal, InternalExternal, InternalExternal, InternalExternal, Internal
Cell ChemistryLi-Ion/Li-Polymer, LiFePO4Li-Ion/Li-Polymer, LiFePO4Li-Ion/Li-Polymer, LiFePO4Li-Ion/Li-Polymer, LiFePO4
Communication InterfaceSMBusSMBusSMBusSMBus
Action

Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

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