Power Integrations, Inc. LNK457DG

A range of off-line AC-DC converters from Power Integrations designed for use as LED drivers in solid-state lighting applications. The devices feature single-stage PFC and constant current control for non-isolated applications and a control algorithm which provides flicker-free TRIAC dimming with minimal external components. These 4-pin monolithic ICs integrate a high-voltage power MOSFET, a novel discontinuous-mode variable frequency variable on-time controller, frequency jitter, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry.
• Optimized for non-isolated flyback designs. • Single-stage power factor correction and accurate constant current output. • Flicker-free phase-controlled TRIAC dimming. • Very low component count with small non-electrolytic bulk capacitor for compact replacement lamp designs. • Complete elimination of control loop compensation. • Frequency jitter greatly reduces EMI filter size and costs. • Low dissipation direct sensing of LED current. • Short-circuit, overload, open feedback and output overvoltage protection. • Hysteretic thermal shutdown. • Meets high-voltage creepage between DRAIN and all other pins both on PCB and at package. • Compact SO8, eSOP12 and eDIP12 packages
Package Type = SOIC
Output Voltage Range = Minimum of 50 V
Minimum Output Voltage = 50 V
Delivery on production packaging - Tube. This product is non-returnable.

A range of off-line AC-DC converters from Power Integrations designed for use as LED drivers in solid-state lighting applications. The devices feature single-stage PFC and constant current control for non-isolated applications and a control algorithm which provides flicker-free TRIAC dimming with minimal external components. These 4-pin monolithic ICs integrate a high-voltage power MOSFET, a novel discontinuous-mode variable frequency variable on-time controller, frequency jitter, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry.
• Optimized for non-isolated flyback designs. • Single-stage power factor correction and accurate constant current output. • Flicker-free phase-controlled TRIAC dimming. • Very low component count with small non-electrolytic bulk capacitor for compact replacement lamp designs. • Complete elimination of control loop compensation. • Frequency jitter greatly reduces EMI filter size and costs. • Low dissipation direct sensing of LED current. • Short-circuit, overload, open feedback and output overvoltage protection. • Hysteretic thermal shutdown. • Meets high-voltage creepage between DRAIN and all other pins both on PCB and at package. • Compact SO8, eSOP12 and eDIP12 packages
Package Type = SOIC
Output Voltage Range = Minimum of 50 V
Minimum Output Voltage = 50 V

LED Driver IC 8W SO-8 - Power Management ICs - AC-DC Converters