NCS1002:Constant Voltage and Constant Current Secondary Controller
The NCS1002 Constant Voltage and Constant Current Secondary Controller is a highly integrated solution for Switching Mode Power Supply (SMPS) applications requiring a dual control loop to perform Constant Voltage (CV) and Constant Current (CC) regulation. The NCS1002 integrates a 2.5 V voltage reference and two precision op amps. The voltage reference, along with Op Amp 1, is the core of the voltage control loop. Op Amp 2 is an independent, uncommitted amplifier specifically designed for the current control.Key external components needed to complete the two control loops are: (a)A resistor dividerthat senses the output of the power supply (battery charger) and fixes the voltage regulation set point at the specified value. (b) A sense resistor that feeds the current sensing circuit with a voltage proportional to the DC output current. This resistor determines the current regulation set point and must be adquately rated in terms of power dissipation. The NCS1002 comes in a small 8-pin SOIC package and is ideal for space-shrunk applications such as battery chargers.
技术特性
- Low Input Offset Voltage: 0.5mV, Typ
- Input Common-Mode Range includes Ground.
- Low Quiescent Current: 300uA per op amp at Vcc=5V.
- Wide Power Supply Range: 3V to 32V
应用
终端产品
- LED Lighting
- Switch Mode Power Supplies
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封装图 PACKAGE DIMENSIONS
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订购信息 Ordering Information
| 产品 |
状况 |
Compliance |
具体说明 |
封装 |
MSL* |
容器 |
预算价格 (1千个数量的单价） |
| 类型 |
外形 |
类型 |
数量 |
| NCS1002DR2G |
Active |
|
Constant Voltage and Constant Current Secondary Controller |
SOIC-8 |
751-07 |
1 |
Tube |
2500 |
$0.1133 |
数据资料DataSheet下载
