BQ4050RSMT Part Information

Details for BQ4050RSMT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Battery Management

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Part Description

The Texas Instruments bq4050 device, incorporating Compensated End-of-Discharge Voltage (CEDV) technology, is a highly integrated, accurate, 1-series to 4-series cell gas gauge and protection solution, enabling autonomous charger control and cell balancing. The bq4050 device provides a fully integrated packbased solution with a flash programmable custom reduced instruction-set CPU (RISC), safety protection, and authentication for Li-Ion and LiPolymer battery packs. The bq4050 gas gauge communicates via an SMBuscompatible interface and combines an ultra-low power, high-speed TI bqBMP processor, highaccuracy analog measurement capabilities, integrated flash memory, an array of peripheral and communication ports, an N-CH FET drive, and a SHA-1 Authentication transform responder into a complete, high-performance battery management solution.

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Part Features

  • 100-KHz SMBus v1.1 Communications Interface for Programming and Data Access with Alternate 400-KHz Mode
  • Analog Front End with Two Independent ADCs u2013 Simultaneous Current and Voltage Sampling u2013 High-Accuracy Coulomb Counter with Input Offset Error < 1 u03bcV (Typical)
  • Cell Balancing with Internal Bypass Optimizes Battery Health
  • Compact 32-pin VQFN Package (RSM)
  • Diagnostic Lifetime Data Monitor and Black Box Recorder for Failure Analysis
  • Full Array of Programmable Protection Features: Voltage, Current, Temperature
  • High-Side Protection N-CH FET Drive Allows Serial Bus Communication During Fault Conditions
  • JEITA Charge Algorithms Support Smart Charging
  • LED Display for State of Charge and Battery Status Indication
  • SHA-1 Authentication Responder for Increased Battery Pack Security
  • Supports Battery Trip Point (BTP) Function for Windowsu00ae Integration

Part Specifications

Battery Management Function Fuel Gauge Protector
Battery Type Li-Ion Li-Pol
Supply Voltage Min 2.2V
Supply Voltage Max 26V
Battery IC Case Style VQFN
No. of Pins 32Pins
IC Interface Type SMBus
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range bq4050 Series
RoHS Phthalates Compliant Yes
MSL MSL 2 - 1 year
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • 1-4 series CEDV battery fuel (gas) gauge | Texas Instruments

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