思旺SE1051代理

SE1051 is a highly integrated solution for SMPS applications requiring CV (constant voltage) and CC (constant current) modes. SE1051 integrates one voltage reference, two operational amplifiers (the outputs are OR’ed together, common collectors), and a current sensing circuit. The voltage reference, together with one operational amplifier, makes it an ideal voltage controller. The other low voltage reference, together with another operational amplifier, makes it an ideal current limiter for low side output current sensing. The current threshold is fixed, and precise. The SE1051, housed in space-saving SOT23-6L package, is ideal for space sensitive applications such as adapters, cellphone chargers, Digital Camera chargers, and other battery chargers. Pin Configuration Application  Adapters  Digital Camera Chargers.  Cellphone Chargers.  Other Battery Chargers Ordering Information/Making Information Device Package VOUT SE1051 SOT-23-6L (Lead-free) Fixed output voltages 1.21V Pin Description Name Pin# Type Function VCTRL 1 Analog Input Input Pin of the Voltage Control Loop GND 2 Power Supply Ground Line. 0V Reference For All Voltages VOUT 3 Current Sink Output Output Pin. Sinking Current Only ICTRL 4 Analog Input Input Pin of the Current Control Loop VSENSE 5 Analog Input Input Pin of the Current C