NCL30080 Series

Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Catalog

Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Part	Package / Case	Mounting Type	Voltage - Supply (Max) [Max]	Type	Number of Outputs	Supplier Device Package	Topology	Internal Switch(s)	Voltage - Supply (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]
ON Semiconductor NCL30080BSNT1G	SOT-23-6 Thin TSOT-23-6	Surface Mount	28 V	AC DC Offline Switcher	1	6-TSOP	Flyback		8.8 V	-40 °C	125 °C

Catalog

Quasi-Resonant Primary Side Current-Mode Controller for LED Lighting

Key Features

• Primary Side Sensing

• Wide Vcc Range

• Precise LED Current Regulation of 1% typical

• ∼ 0.9 PF with passive valley fill

• Open and shorted output protection

• Secondary Diode Short Protection

• Wide Temperature range of -40 to 125 °C

• Shorted Current Sense Fault Detection

• Input Line Voltage Sensing

• Auto-recoverable and Latched versions

Description

The NCL30080 is a PWM current mode controller targeting isolated flyback and non-isolated buck-boost constant current topologies. The controller operates in a quasi-resonant mode to provide high efficiency. Thanks to a novel control method, the device is able to precisely regulate a constant LED current from the primary side. This removes the need for secondary side feedback circuitry, biasing and an optocoupler.