AN1537一个简单的伎俩，增强l5991的待机功能

AN1537一个简单的伎俩，增强l5991的待机功能

AN1537
APPLICATION NOTE
A SIMPLE TRICK ENHANCES
L5991’s STANDBY FUNCTION
by C. Adragna and G. Gattavari




This application notes describes a simple technique that allows improving the Standby function of the
advanced PWM controller L5991. The price to pay for that is the addition of just two resistors and two
diodes, but the benefit brought in terms of no-load consumption in mains-operate