KP1059Low System Cost, Non-isolated Buck LED Power Switch
KP1059 is a highly integrated power switch with DCM Buck constant current (CC) control for LED lighting applications.
KP1059 combines a 500V power MOSFET switch with a power controller in one chip. The IC also integrates high voltage startup/IC supply circuit and a novel transformer demagnetization circuit, which eliminates transformer auxiliary winding. The IC supports small inductance, which lowers system cost greatly.
KP1059 integrates functions and protections of Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Thermal Fold-back (OTP), LED Short Protection, etc.
l Integrated with 500V MOSFET
l No Auxiliary Winding Needed
l ±5% CC Regulation
l Very Low VDD Operation Current
l Support Low Cost Small Inductance
l Built-in Thermal Fold-back
l Built-in Charging Circuit for Fast Start-Up
l Built-in AC Line CC Compensation
l Build in Protections:
n LED Short Protection
n On-Chip Thermal Fold-back (OTP)
n Cycle-by-Cycle Current Limiting
n Leading Edge Blanking (LEB)
n Pin Floating Protection
n VDD UVLO
l Available with SOT23-3L Package
l E14 Filament lamp
SOT23-3L, Halogen free in T&R, 3000Pcs/Reel