BQ2000TPW PDF预览

BQ2000TPW

更新时间: 2025-07-17 11:06:51
品牌 Logo 应用领域
德州仪器 - TI 电池开关电源管理电路电源电路
页数 文件大小 规格书
16页 141K
描述
具有 dT/dt 终止功能的开关模式多化合物电池充电器 | PW | 8 | -20 to 70

BQ2000TPW 数据手册

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bq2000T  
Programmable Multi-Chemistry  
Fast-Charge Management IC  
For safety, the bq2000T inhibits fast  
General Description  
Features  
charge until the battery voltage and  
temperature are within user-defined  
The bq2000T is a programmable,  
limits. If the battery voltage is below  
monolithic IC for fast-charge manage-  
the low-voltage threshold, the  
ment of nickel cadmium (NiCd),  
bq2000T uses trickle-charge to  
nickel metal-hydride (NiMH), or lith-  
condition the battery. For NiMH  
ium-ion (Li-Ion) batteries in single- or  
batteries, the bq2000T provides an  
multi-chemistry applications. The  
optional top-off charge to maximize  
bq2000T detects the battery chemis-  
the battery capacity.  
Safe management of fast  
charge for NiCd, NiMH, or Li-  
Ion battery packs  
High-frequency switching con-  
troller for efficient and simple  
charger design  
try and proceeds with the optimal  
Pre-charge qualification for  
detecting shorted, damaged, or  
overheated cells  
charging and termination algorithms.  
This process eliminates undesirable  
undercharged or overcharged condi-  
tions and allows accurate and safe  
termination of fast charge.  
The integrated high-frequency com-  
parator allows the bq2000T to be the  
basis for a complete, high-efficiency  
power-conversion circuit for both  
nickel-based and lithium-based  
chemistries.  
Fast-charge termination by  
T/t minimum current  
(Li-Ion), maximum tempera-  
ture, and maximum charge  
time  
Depending on the chemistry, the  
bq2000T provides a number of  
charge termination criteria:  
Selectable top-off mode for  
achieving maximum capacity in  
NiMH batteries  
n
Rate of temperature rise, T/t (for  
NiCd and NiMH)  
n
Minimum charging current (for  
Li-Ion)  
Programmable trickle-charge  
mode for reviving deeply dis-  
charged batteries and for post-  
charge maintenance  
n
n
Maximum temperature  
Maximum charge time  
Built-in battery removal and  
insertion detection  
Sleep mode for low power  
consumption  
Pin Names  
Pin Connections  
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  
SLUS149A–FEBRUARY 2000  
1

BQ2000TPW 替代型号

型号 品牌 替代类型 描述 数据表
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具有 dT/dt 终止功能的开关模式多化合物电池充电器 | D | 8 | -20 to

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