Product Summary

The BQ2057WSN is an advanced linear charge management ic. The BQ2057WSN is designed for costsensitive and compact portable electronics. They combine high-accuracy current and voltage regulation, battery conditioning, temperature monitoring, charge termination, charge-status indication, and AutoComp charge-rate compensation in a single 8-pin IC. MSOP, TSSOP, and SOIC package options are offered to fit a wide range of end applications.

Parametrics

BQ2057WSN absolute maximum ratings: (1)Supply voltage (VCC with respect to GND): -0.3 to +18 V; (2)Input voltage, SNS, BAT, TS, COMP (all with respect to GND): -0.3 V to VCC+0.3 V; (3)Sink current (STAT pin)not to exceed PD: 20 mA; (4)Source current (STAT pin)not to exceed PD: 10 mA; (5)Output current (CC pin)not to exceed PD: 40 mA; (6)Total power dissipation, PD (at 25°C): 300mW; (7)Operating free-air temperature range, TA: -20℃to 70°C; (8)Storage temperature range, Tstg: -40℃to 125°C; (9)Lead temperature (soldering, 10 s): 300℃.

Features

BQ2057WSN features: (1)Integrated Voltage and Current Regulation With Programmable Charge-Current and Highor Low-Side Current Sensing; (2)Integrated Cell Conditioning for Reviving Deeply Discharged Cells and Minimizing Heat Dissipation During Initial Stage Of Charge; (3)Charge Status Output for Single or Dual Led or Host Processor Interface; (4)Automatic Battery-Recharge Feature; (5)Charge Termination by Minimum Current; (6)Automatic Low-Power Sleep Mode When VCC Is Removed; (7)EVMs Available for Quick Evaluation; (8)Packaging: 8-Pin SOIC, 8-Pin TSSOP, 8-Pin MSOP.

Diagrams

 BQ2057WSN pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
BQ2057WSN
BQ2057WSN

Texas Instruments

Battery Management Li-Ion LDO Linear Charge Management IC

Data Sheet

0-1: $1.55
1-25: $1.42
25-100: $1.12
100-250: $1.06
BQ2057WSNG4
BQ2057WSNG4

Texas Instruments

Battery Management Li-Ion LDO Linear Charge Management IC

Data Sheet

0-1: $1.25
1-25: $1.14
25-100: $0.79
100-250: $0.77
BQ2057WSNTRG4
BQ2057WSNTRG4

Texas Instruments

Battery Management Li-Ion LDO Linear Charge Management IC

Data Sheet

0-1930: $0.59
1930-2000: $0.58
2000-2500: $0.58
2500-10000: $0.57
BQ2057WSNTR
BQ2057WSNTR

Texas Instruments

Battery Management Li-Ion LDO Linear Charge Management IC

Data Sheet

0-1930: $0.59
1930-2000: $0.58
2000-2500: $0.58
2500-10000: $0.57