LR745 start-up equivalent, high-input voltage smps start-up.
* Accepts inputs from 35 to 450V
* Output current limiting
* For PWM ICs with start-up threshold voltage of
13.9 - 18.0V
* Very low power consumption afte.
* Notebook and laptop computers
* Telecommunication power supplies
* Battery chargers
* Motor controller.
LR745 is a high input voltage SMPS start-up circuit. LR745 is ideally suited for use with industry standard low-voltage, Pulse-Width Modulation (PWM) ICs having start thresholds of 13.9 to 18.0V. It allows the PWM ICs to be operated from rectified 12.
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