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TI BQ27742YZFR-G1

Manufacturer
TI
MPN
BQ27742YZFR-G1
LCSC Part #
C2842397
Packaging
DSBGA-15
Customer #
Key Attributes
Single-cell lithium-ion battery fuel gauge
DatasheetTI BQ27742YZFR-G1
RoHS Compliance2 documents available
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerTI
PackagingDSBGA-15
Operating Temperature-40℃~+85℃
InterfaceI2C;HDQ
Quiescent Current167uA
0V Battery Charge-
Operating Voltage2.8V~5V
Type of BatteryLithium Battery
FeaturesTrickle charging;Over-discharge protection;Overcurrent Protection;Short-Circuit Protection
The Chip TypeMonitoring IC;Protection IC
Balance Current-
Charge Current - Max-
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Introduction

AI Translation

The bq27742-G1 device is a fuel gauge designed for single-cell lithium-ion battery packs. This fuel gauge utilizes the patented Impedance Track™ technology to predict the remaining battery capacity with the highest accuracy, compensating for rate, temperature, and aging effects on system operation.

The device also features a fully integrated high-side protector, enabling a comprehensive set of high-precision fault detections for overvoltage, undervoltage, overcharge current, over-discharge current, and discharge short-circuit conditions without the need for a separate lithium-ion protection circuit. The hardware protection function offers built-in data flash programmability, facilitating the reconfiguration of existing devices to meet different end-device requirements.

This fuel gauge provides information such as remaining battery capacity (mAh), state of charge (%), remaining runtime (minutes), battery voltage (mV), current (mA), and temperature (°C), as well as important parameters recorded throughout the battery's lifespan. The device also supports interrupting the host to indicate the detection of various critical fault conditions and report them to the system.

The DSBGA comes in a 15-ball package (2.78mm×1.96mm), making it ideal for space-constrained applications.

Features

AI Translation
  • Single-cell Li-Ion battery fuel gauge and protector provided as microcontroller peripheral
  • Precision 16-bit high-side coulomb counter with low-value sense resistor (5mΩ to 20mΩ)
  • External and internal temperature sensors for battery temperature reporting
  • Lifetime and current data logging
  • 64-byte nonvolatile scratch flash
  • SHA-1 authentication
  • Battery fuel gauging based on patented Impedance Track™ technology
  • Battery discharge profile simulation for accurate battery runtime prediction with automatic adjustment for battery aging, self-discharge, temperature, and rate-induced effects
  • Integrated high-side NMOS protection FET driving hardware-based safety and protection features: OVP, UVP, OCC, OCD, SCD
  • I2C and HDQ communication interface formats for host system communication
  • Ultra-compact 15-ball NanoFree™ DSBGA

Applications

AI Translation
  • Smartphones
  • Tablets
  • Handheld terminals
  • MP3 and multimedia players
  • Portable game consoles