参数资料
型号: BQ2057CSNTR
厂商: Texas Instruments
文件页数: 2/31页
文件大小: 0K
描述: IC LI-ION LDO CHRG MGMT 8-SOIC
标准包装: 2,500
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.5 V ~ 15 V
工作温度: -20°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
配用: 296-9501-ND - EVAL MOD FOR BQ2057C
bq2057, bq2057C
bq2057T, bq2057W
SLUS025F ? MAY 2001 ? REVISED JULY 2002
DESCRIPTION (continued)
The bq2057 then begins the constant-voltage phase. The accuracy of the voltage regulation is better than ± 1%
over the operating-temperature and supply-voltage ranges. For single and dual cells, the bq2057 is offered in
four fixed-voltage versions: 4.1 V, 4.2 V, 8.2 V, and 8.4 V. Charge stops when the current tapers to the charge
termination threshold, I (TERM) . The bq2057 automatically restarts the charge if the battery voltage falls below
the V (RCH) threshold.
The designer also may use the AutoComp feature to reduce charging time. This proprietary technique allows
safe and dynamic compensation for the internal impedance of the battery pack during charge.
AVAILABLE OPTIONS
PACKAGE
TA
?20 ° C to 70 ° C
CHARGE REGULATION
VOLTAGE
4.1 V
4.2 V
8.2 V
8.4 V
SOIC
(SN)
Not available
bq2057CSN
Not available
bq2057WSN
TSSOP
(TS)
bq2057TS
bq2057CTS
bq2057TTS
bq2057WTS
MSOP?
(DGK)
bq2057DGK
bq2057CDGK
Not available
? Note the difference in pinout for this package.
2
www.ti.com
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参数描述
BQ2057CSNTRG4 功能描述:电池管理 Li-Ion LDO Linear Charge Management IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
BQ2057CTS 功能描述:电池管理 Li-Ion LDO Linear Charge Management IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
BQ2057CTS-C1 制造商:Rochester Electronics LLC 功能描述:- Bulk
BQ2057CTSG4 功能描述:电池管理 Li-Ion LDO Linear Charge Management IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel
BQ2057CTSTR 功能描述:电池管理 Li-Ion LDO Linear Charge Management IC RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel