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TI BQ29209TDRBRQ1RoHS

Manufacturer
TI
MPN
BQ29209TDRBRQ1
LCSC Part #
C3682652
Packaging
SON-8(3x3)
Customer #
Key Attributes
Voltage protection suitable for two series-connected lithium-ion batteries with automatic battery balancing function
Datasheetpdf iconTI BQ29209TDRBRQ1
In-Stock: 162
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QtyUnit PriceTotal Amount
1+$ 2.2083$ 2.21
200+$ 1.1107$ 222.14
500+$ 1.0864$ 543.20
1,000+$ 1.0743$ 1074.30
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Management
ManufacturerTI
PackagingSON-8(3x3)
Operating Temperature-40℃~+105℃
Interface-
Quiescent Current3uA
0V Battery Charge-
Operating Voltage4V~10V
Type of BatteryLithium Battery
Features-
The Chip TypeProtection IC;Balancing IC
Balance Current15mA
Charge Current - Max-
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Introduction

AI Translation

The BQ29209-Q1 device is a secondary overvoltage protection IC for 2-series lithium-ion battery packs, featuring a high-precision overvoltage detection circuit and an automatic charge imbalance correction function. This IC compares the voltage of each cell in the 2-series battery pack with the factory-set internal reference voltage. If any cell reaches an overvoltage state, the OUT pin switches from a low-level to a high-level state. The BQ29209-Q1 can perform voltage-based automatic charge imbalance correction. Charge balancing is initiated when the cell voltage differs from the internal reference voltage by 30mV or more, and it stops when the difference is 0mV. The charge balancing function is enabled and disabled via the CB_EN pin.

Features

AI Translation
  • 2-cell series battery secondary protection
  • Automatic cell imbalance correction with external enable control
  • ±30mV enable threshold, 0mV disable threshold (typical)
  • External capacitor-controlled delay timer
  • External resistor-controlled cell balancing current
  • Low-power ICC<3μA (typical) (VCEL (total voltage) <VPROTECT)
  • Internal cell balancing handles up to 15mA
  • External cell balancing mode support
  • High-accuracy overvoltage protection: ±25mV (TA=0°C to 60°C)
  • Fixed overvoltage protection threshold: 4.30V
  • Small 8-pin DRB package
  • Functional Safety documentation available to aid functional safety system design
  • AEC Q100 Grade 2 compliant

Applications

AI Translation
  • Secondary protection for Li-ion battery packs
  • Emergency call (eCall)
  • Laptops
  • Power tools
  • Portable devices and instruments
  • Backup battery systems