KP1051B /KP1051C/KP1051D Non-isolated Quasi-Resonant Buck LED Power Switch
KP1051X 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 adopts Quasi-Resonant control for high efficiency.
KP1051X integrates functions and protections of Current Limit and Leading Edge Blanking, Under Voltage Lockout (UVLO), Cycle-by-cycle Current Limiting (OCP), Thermal Foldback (OTP), LED Open/Short Protection, etc.
FEATURES
●Integrated with 500V MOSFET
●No Auxiliary Winding Needed
●Quasi-Resonant for High Efficiency
●Built-in Thermal Foldback
●Built-in Charging Circuit for Fast Start-Up
●±4% CC Regulation
●Very Low VDD Operation Current
●Built-in AC Line CC Compensation
●Build in Protections:
LED Short/Open Protection
On-Chip Thermal Fold-back (OTP)
Cycle-by-Cycle Current Limiting
Leading Edge Blanking (LEB)
Pin Floating Protection
VDD UVLO
●Available with SOP-8,TO-92 and SOT23-3L Package
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[ LED Lighting ] |
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Datasheet |
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Please see the document for details |
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SOP-8;TO-92;SOT23-3L |
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English Chinese Chinese and English Japanese |
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February 13, 2017 |
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REV1.1 |
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DS_KP1051X_REV1.1_EN |
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60 KB |
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