onsemi NCL30167
The NCL30167 high power factor boost PWM switching regulator is designed to regulate the average current through a string of LEDs. The circuit operates in Critical Conduction Mode (CrM) based on a proven constant on-time control scheme to achieve near unity power factor. When a dimmer is detected on the AC input, an internal voltage reference of the current regulation loop adjusts the current level based on the dimmer conduction angle so the current through the LED string has a desired value based on a programmed dimming curve.| Part No. | NCL30167 |
|---|---|
| Datasheet | NCL30167 Download |
| Manufacturer |  onsemi |
| Description | LED Boost Switching Regulator |
| Buy | Stock & Price |
FEATURES
● Near-Unity Power Factor● Critical Conduction Mode (CrM)
● Constant On-time Control
● Accurate Current Regulation (±2% Typical)
● Compatible with Leading and Trailing Edge Phase Controlled Dimmers
● Fast Startup Time (< 100 ms Typical)
● Integrated ZCD Detection
● User Programmable Thermal Current Fold-back
● VCC Operation up to 20 V
● This Device is Pb-Free and is RoHS Compliant Safety
FEATURES
● Output Overvoltage Protection● Cycle-by-Cycle Current Limiting
● VCC UVLO Typical
APPLICATIONS
● LED Bulbs● LED Downlights
● LED Light Engines
● LED Modules 10 1 SOIC−10 CASE 751BQ MARKING DIAGRAM 10 L30167 ALYWX G 1 L30167 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS 1 ACC_TH TF OVP CS2 VCC 5 (Top View) 10 NC COMP DRV CS1 GND 6 ORDERING INFORMATION Device NCL30167DR2G Package SOIC−10 (Pb-Free) Shipping† 2500 / Tape & Reel †For information on tape and reel specifica...
