ST 3845B High Performance Current Mode PWM Controller Ceramic Diode Multiturn trimmers are ideal for

Multiturn trimmers are ideal for Applications requiring precise resistance control

liquid crystal is put between transparent electrodes and alters the polarization of light travelling through an electrical field

132 kHz switching frequency (automatically lowered at low load)

FAT32 file systems

low direct current resistance

ST 3845B High Performance Current Mode PWM Controller Ceramic Diode Multiturn trimmers are ideal forSTMicroelectronics 3845B is a high Performance current mode PWM controller. The 3845B control IC family provides the features required to implement off line or DC to DC fixed frequency current mode control schemes with a low external part count. Internally implemented circuits include a trimmed oscillator with start up current less than 0. 5mA for precise DUTY CYCLE CONTROL under voltage lock out, a precision reference trimmed for accuracy at the