3W 大功率白光 LED 驱动器
******供应手电筒驱动IC****
供应输入电压1.6-3.3V的手电筒驱动IC
供应输入电压0.8-3.0V的手电筒驱动IC
供应输入电流300MA、800MA内的手电筒驱动IC
供应可替代PAM2803的手电筒驱动IC
The AP9232 is a set-up DC-DC converter that delivers a regulated output current. The device switches at a 1MHz constant frequency,allowing for the use of small value external inductor and ceramic capacitors. The AP9232 is targeted to be used for driving loads up to 1A from a two-cell alkaline battery. The LED current can be programmed by the external current sense resistor, Rs, connected between the feedback pin (FB) and ground. A low 95mV feedback voltage reduces the power loss in the Rs for better efficiency. During the shutdown mode, the feedback resistor Rs and the load are completely disconnected and the current consumption is reduced to less than 1uA. Applications： l White LED Torch (Flashlight) l White LED Camera Flash l DSC(Digital Still Camera)Flash l Cellular Camera Phone Flash l PDA Camera Flash l Camcorder Torch(Flashlight) Lamp Rs Resistor Value Selection： TYP.（mΩ） ILED (mA) 127 750 270 351.8 CS05FTGR127N(0805，1％，TCR300,127 mΩ) CS05FTGR270(0805，1％，TCR300,270 mΩ
