When downloading the official PDF datasheet, engineers should pay close attention to the following application curves:
The LZC8650C is a single-stage, high-power-factor (PF) constant-current LED driver controller. It is specifically optimized for flyback and buck-boost topologies operating in Boundary Conduction Mode (BCM). By achieving a high power factor and low Total Harmonic Distortion (THD), this IC meets the strictest global standards for energy efficiency and power quality in solid-state lighting. Target Applications : Retrofit linear fluorescent lamps.
Optimizes efficiency and minimizes switching stress on the power MOSFET. lzc8650c ic datasheet pdf
Over-voltage (OVP) and under-voltage (UVP) protection.
Thermal protection and foldback threshold adjustments. Programs the precise temperature fallback point using an external NTC resistor network. Target Applications : Retrofit linear fluorescent lamps
What are your required specifications for the LED string? Are you designing a flyback or a buck-boost topology?
typically at 145°C), the IC automatically reduces output LED current at a rate of . This keeps the fixture illuminated at a lower brightness rather than completely blacking out the room. A hardware shutdown occurs only if thermal limits exceed 165°C. Thermal protection and foldback threshold adjustments
The most reliable way to get the latest version of the datasheet, along with application notes, demo boards, and samples, is to contact the manufacturer's authorized distributors directly. Based on numerous industry forum posts, the following sales representatives can provide the datasheet and full technical support:
The internal layout of the LZC8650C relies on an accurate operational threshold to prevent damage while ensuring a and Total Harmonic Distortion (THD) below 10% . Parameter Type Parameter Name Technical Value / Rating Power Supply VDDcap V sub cap D cap D end-sub Supply Voltage ( VDD_ONcap V sub cap D cap D _ cap O cap N end-sub VDD_OFFcap V sub cap D cap D _ cap O cap F cap F end-sub 19.8V (Typ) / 8.0V (Typ) Power Supply VDDcap V sub cap D cap D end-sub Over-Voltage Protection Threshold Power Supply Operating Current ( IOCcap I sub cap O cap C end-sub 1.5 mA (with CDRVcap C sub cap D cap R cap V end-sub Error Amplifier Operational Transconductance Amplifier ( VREFcap V sub cap R cap E cap F end-sub Driver Output Gate Drive Internal Clamp Voltage (
, the LZC8650 series typically operates within these parameters: Supply Voltage ( cap V sub cap D cap D end-sub 9.5V to 27V. Operating Temperature: (Ambient); (Junction). Isolated and primary-side offline LED lighting regulator. „Mouser Electronics“ Lietuva Core Protection Features
The (also marketed under the brand DIOO as ) is a high-performance, single-stage LED driver IC designed for offline flyback power converters. It is widely used in LED lighting for its ability to provide high power factor (PF > 0.95) and low total harmonic distortion (THD < 10%). 🛠️ Key Technical Specifications