The CL88020 LED Driver Integrated Circuit (IC) is an off-line sequential linear LED driver designed to provide 8.5W of LED power from a 120 VAC nominal input voltage. CL88020 is designed to drive a long string of inexpensive, low-current LEDs directly from the AC mains. A basic driver circuit consists of Microchip Technology Inc.’s CL88020 LED driver IC, six resistors and a bridge rectifier. Two to four additional components are optional for various levels of transient protection, also with a low-cost NTC to assure remote over-temperature protection (OTP).

Optimized for 120 VAC Nominal Input Voltage
120 VAC ± 15% input voltage
Targeted for 8.5W Output Power
Programmable Overtemperature Protection
Provides Gradual Reduction in Light Output with Increasing Temperature
Provides Fairly Constant Output Power over Variations in AC Line Voltage
Typical Line Regulation of –12% to +0%
Four Taps with Two Current Set Resistors
Provides Continuous Power to the LED
Eliminates Strobing