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Details for BQ29209DRBR by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Battery Management
BATT PROT LI-ION 10V VSON-8
BQ29209DRBR image

BQ29209DRBR by Texas Instruments

BATT PROT LI-ION 10V VSON-8
Features
2-Series Cell Secondary Protection
Automatic Cell Imbalance Correction with External Enable Control u2013 u00b130-mV Enable, 0-mV Disable Thresholds Typical
External Capacitor-Controlled Delay Timer
External Cell Balancing Mode Supported
External Resistor-Controlled Cell Balance Current
Fixed Overvoltage Protection Thresholds: 4.30 V, 4.35 V
High-Accuracy Overvoltage Protection: u2013 u00b125 mV with TA = 0u00b0C to 60u00b0C
Internal Cell Balancing Handles Current up to 15 mA
Low Power Consumption ICC < 3 u00b5A Typical (VCELL(ALL) < VPROTECT)
Small 8L DRB Package
Part Information
BQ29209DRBR image
RoHS Compliant
Description
The bq2920x device is a secondary overvoltage protection IC for 2-series cell lithium-ion battery packs that incorporates a high-accuracy precision overvoltage detection circuit and automatic cell imbalance correction. The voltage of each cell in a 2-series cell battery pack is compared to a factory programmed internal reference voltage. If either cell reaches an overvoltage condition, the OUT pin changes from low to high state. The bq2920x can perform automatic voltage-based cell imbalance correction. Balancing can start when the cell voltages are different by nominally 30 mV or more and stops when the difference is nominally 0 mV. Cell balancing is enabled and disabled by the CB_EN pin.
Specifications
Battery Type:
Li-Ion
Battery Protection:
Over Voltage
No. of Batteries:
2
Shutdown Current:
-
Battery IC Case Style:
VSON
No. of Pins:
8Pins
Supply Voltage Min:
4V
Supply Voltage Max:
10V
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
Voltage Protection for Li-Ion Batt. VSON RS Components
Battery Protection Li-Ion 4.3V 8-Pin VSON EP T/R Avnet America
Battery Protection Li-Ion 4.3V 8-Pin VSON EP T/R Avnet Europe