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BQ2057TTS

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Price $2.68 $1.34 $2.05
RoHS Yes Yes Compliant Not Compliant Yes Yes Yes
Lead Status Yes Yes No No Yes Yes Yes
Cell Chemistry Li-Ion/Li-Polymer Li-Ion/Li-Polymer Li-Ion/Li-Polymer Li-Ion/Li-Polymer
Control Interface Standalone (RC-Settable) SMBus Standalone (RC-Settable) Standalone (RC-Settable)
Charge Current(Max)(A) 1 8 1.5 2
Approx. Price (US$) 0.95 | 1ku 2.25 | 1ku 1.20 | 1ku 0.24 | 1ku 0.84 | 1ku
# Series Cells 1 1,2,3,4 1 1,2
Battery Charge Voltage(V) 4.2 (Fixed) Adjustable 4.2 (Fixed) 4.1 (Fixed)
Package Size mm2 mm2 mm2 mm2
Absolute Vin (safety rating)(Max)((V)) 18 30 18 18
Operating Vin(Max)(V) 6.2 24 16 15
Package Group VSON VQFN VQFN VQFN WSON SOIC,TSSOP
Special Features Integrated FET,Temp Monitoring (Thermistor Pin),Thermal Regulation Integrated FET Power Path,Temp Monitoring (Thermistor Pin),Thermal Regulation Temp Monitoring (Thermistor Pin)
Operating Vin(Min)(V) 4.5
Control Topology Switch-Mode Buck
Rating Catalog Catalog
Operating Temperature Range(C) -40 to 85
Estimated Package Size (WxL)(mm2) [pf]32VQFN[/pf]
Function Protection Protection
Communication Interface No Communication
# Series Cells (Min) 2
Typical Operating Current(Typ)(uA) 1
Battery Over-Voltage Protection(Typ)(V) 4.4
# Series Cells (Max) 3
Protection Feature(s) Over-voltage (OV)
Vin(Max)(V) 25