参数资料
| 型号： | BQ2002GSNG4 |
| 厂商： | Texas Instruments |
| 文件页数： | 6/15页 |
| 文件大小： | 0K |
| 描述： | IC CONTROLLER FASTCHRGE 8-SOIC |
| 标准包装： | 75 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4 V ~ 6 V |
| 工作温度： | 0°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： | 管件 |
| 配用： | 296-9488-ND - EVAL MOD FOR BQ2002 |
bq2002E/G
rate, and voltage hold-off period options. Table 1 de-
scribes the states selected by the TM pin. The mid-
level selection input is developed by a resistor di-
vider between V CC and ground that fixes the voltage
on TM at V CC /2 ± 0.5V. See Figure 4.
Charge Status Indication
A fast charge in progress is uniquely indicated when the
LED pin goes low. The LED pin is driven to the high-Z
state for all conditions othe r than fast charge. Figure 2
outlines the state of the LED pin during charge.
Charge Inhibit
Fast charge and top-off may be inhibited by using the
INH pin. When high, INH suspends all fast charge and
top-off activity and the internal charge timer. INH
freezes the current state of LED until inhibit is removed.
Temperature monitoring is not affected by the INH pin.
During charge inhibit, the bq2002E/G continues to
pulse-trickle charge the battery per the TM selection.
When INH returns low, charge control and the charge
timer resume from the point where INH became active.
6
Low-Power Mode
The IC enters a low-power state when V BAT is driven
above the power-down threshold (V PD ) where
V PD = V CC - (1V ± 0.5V)
Both the CC pin and the LED pin are driven to the
high-Z state. The operating current is reduced to less
than 1 μ A in this mode. When V BAT returns to a value
below V PD , the IC pulse-trickle charges until the next
new charge cycle begins.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BQ2002GSNTR | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt 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 |
| BQ2002GSNTRG4 | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt 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 |
| BQ2002PN | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt 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 |
| BQ2002PNE4 | 功能描述:电池管理 NiCd/NiMH Gating Charge Mngmnt 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 |
| BQ2002PNG4 | 功能描述:IC CONTROLLER FASTCHRGE 8-DIP 制造商:texas instruments 系列:- 包装:管件 零件状态:在售 电池化学:多化学 电池数:- 电流 - 充电:恒流，脉冲式 可编程特性:电压 故障保护:- 充电电流 - 最大值:- 电池组电压:2V 电压 -?供电（最高）:6V 接口:- 工作温度:0°C ~ 70°C（TA） 封装/外壳:8-DIP（0.300"，7.62mm） 供应商器件封装:8-PDIP 基本零件编号:BQ2002 标准包装:50 |
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