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BQ24400P PDF预览

BQ24400P

更新时间: 2024-11-24 22:50:19
品牌 Logo 应用领域
德州仪器 - TI 电源电路电池电源管理电路光电二极管
页数 文件大小 规格书
15页 164K
描述
Programmable NiCd/NiMH Fast-Charge Management Device

BQ24400P 技术参数

生命周期:Obsolete零件包装代码:DIP
包装说明:PLASTIC, DIP-8针数:8
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.69
Is Samacsys:N可调阈值:YES
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:R-PDIP-T8
长度:9.81 mm信道数量:1
功能数量:1端子数量:8
最高工作温度:70 °C最低工作温度:-20 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP8,.3封装形状:RECTANGULAR
封装形式:IN-LINE电源:5 V
认证状态:Not Qualified座面最大高度:5.08 mm
子类别:Power Management Circuits最大供电电流 (Isup):1 mA
最大供电电压 (Vsup):6 V最小供电电压 (Vsup):4 V
标称供电电压 (Vsup):5 V表面贴装:NO
温度等级:OTHER端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
宽度:7.62 mmBase Number Matches:1

BQ24400P 数据手册

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bq24400  
Programmable NiCd/NiMH  
Fast-Charge Management Device  
Features  
General Description  
Ø
Ø
Ø
Ø
Safe management of fast charge  
for NiCd and NiMH battery  
packs.  
The bq24400 is a programmable,  
monolithic IC for fast-charge manage-  
ment of nickel cadmium (NiCd) and  
nickel metal-hydride (NiMH) batter-  
ies.  
For safety, the bq24400 inhibits fast  
charge until the battery voltage and  
temperature are within user-defined  
limits. If the battery voltage is below  
the low-voltage threshold, the  
bq24400 uses trickle-charge to  
condition the battery. For NiMH  
batteries, the bq24400 provides an  
optional top-off charge to maximize  
the battery capacity.  
High-frequency switching con-  
troller for efficient and simple  
charger design  
The bq24400 provides a number of  
charge termination criteria:  
Pre-charge qualification for  
detecting shorted, damaged, or  
overheated cells  
l
Peak voltage, PVD (for NiCd and  
NiMH)  
The integrated high-frequency com-  
parator allows the bq24400 to be the  
basis for a complete, high-efficiency  
power-conversion circuit.  
Fast-charge termination by  
peak voltahge (PVD), maximum  
temperature, and maximum  
charge time  
l
l
Maximum temperature  
Maximum charge time  
Ø
Ø
Selectable top-off mode for  
achieving maximum capacity in  
NiMH batteries  
Programmable trickle-charge  
mode for reviving deeply dis-  
charged batteries and for post-  
charge maintenance  
Ø
Ø
Built-in battery removal and in-  
sertion detection  
Sleep mode for low power con-  
sumption  
Pin Connections  
Pin Names  
SNS  
VSS  
Current-sense input  
TS  
Temperature-sense  
input  
System ground  
RC  
Timer-program input  
Supply-voltage input  
SNS  
1
2
3
4
8
7
6
5
MOD  
LED  
Charge-status  
output  
VCC  
MOD  
V
CC  
V
SS  
BAT  
Battery-voltage  
input  
Modulation-control  
output  
RC  
TS  
LED  
BAT  
8-Pin DIP or Narrow SOIC  
or TSSOP  
PN-2000.eps  
SLUS498 -SEPTEMBER 2001  
1

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