Product Summary

The BQ2954SN is a BiCMOS secondary protection IC for 2-, 3-, or 4-cell Lithium-Ion battery packs that incorporate a high-accuracy precision over voltage detection circuit. The BQ2954SN includes a programmable delay circuit for over voltage detection time. It has limited built-in ESD protection. The BQ2954SN is used in 2nd Level Protection in Lion Battery Packs in: Notebook PCs, Portable Instrumentation, Medical and Test Equipment.

Parametrics

BQ2954SN absolute maximum ratings: (1)Supply voltage range (VDD): -0.3 V to 28 V; (2)Input voltage range (VC1, VC2, VC3, VC4): -0.3 V to 28 V; (3)Output voltage range: -0.3 V to 28 V; (4)Storage temperature range, Tstg: -65℃ to 150℃; (5)Lead temperature (soldering, 10 sec): 300℃.

Features

BQ2954SN features: (1)2-, 3-, or 4-Cell Secondary Protection; (2)Low Power Consumption ICC < 2 μA [VCELL(ALL) < V(PROTECT)]; (3)High Accuracy Over Sense Voltage: 4.45 V ±25 mV; (4)Prefixed Protection Threshold Voltage; (5)Programmable Delay Time; (6)High Power Supply Ripple Rejection; (7)Stable During Pulse Charge Operation.

Diagrams

BQ2954SN diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
BQ2954SN
BQ2954SN
Texas Instruments
Battery Management Li-Ion Switchmode Charge Management IC
Data Sheet
0-1: $3.55
1-25: $2.95
25-100: $2.59
100-250: $2.26
BQ2954SNG4
BQ2954SNG4
Texas Instruments
Battery Management Li-Ion Switchmode Charge Management IC
Data Sheet
0-1: $2.85
1-25: $2.59
25-100: $2.00
100-250: $1.91
BQ2954SNTR
BQ2954SNTR
Texas Instruments
Battery Management Li-Ion Switchmode Charge Management IC
Data Sheet
0-1955: $1.54
1955-2000: $1.51
2000-2500: $1.51
BQ2954SNTRG4
BQ2954SNTRG4
Texas Instruments
Battery Management Li-Ion Switchmode Charge Management IC
Data Sheet
0-1955: $1.54
1955-2000: $1.51
2000-2500: $1.51