PT1908 普诚 电流纹波去除器IC 用于LED恒流驱动
DESCRIPTION
PT1908 is a chip used in LED constant current driving to eliminate 100/120Hz current ripple.
PT1908 has good ripple elimination performance throughout the entire output current range and still has excellent dynamic response speed in fast dimming system applications.
PT1908 integrates a 40V N-channel MOSFET internally, and it is recommended to apply an output current of less than 120mA. Support thyristor dimming, low system cost, SOT23-3 package, SOT89-3 package
FEATURES
● Topology: Remove the 100/120Hz current ripple
● Protection: Smart Thermal CTR
● MOS: 40V/120mA
● Typical: 30mA~60mA
● Application: Pd<0.4W
● Limit Range: <0.6W
APPLICATIONS
● AC-DC LED Lighting
● Industrial and Commercial Lighting
● Solid State Lighting
● DC-DC LED Lighting
