Products, Materials & Tools | Dec 17, 2009

Allegro LED Drivers Include MIC, Power MOSFET

The LC5205D and LC5210D off-line LED driver IC series include both a main controller integrated circuit (MIC) and a power MOSFET. The high-voltage capability allows direct connection to a wide range of supply voltages ranging from 25 to 400 V (recommended).

• Supply voltage, VBB, 450 V maximum, 25 to 400 V recommended; Note: lowest voltage can vary depending on LED loads
• Output current IO(max) options:
  - 0.5 A, LC5205D
  - 1.0 A, LC5210D
•Constant current control circuit:
  - Fixed off-time PWM constant current control, off-time adjustable by external components
  - Externally adjustable output current by input voltage to REF pin
• Output current dimming by external PWM signal; low signal to TOFF pin shuts off output current, and PWM signal input to that pin enables dimming
• Undervoltage lockout protection (UVLO)
• Overcurrent protection (OCP); latched in response to the short-to-GND condition
• Thermal Shutdown protection (TSD); protects IC from damage due to excess temperature, auto-restart when temperature drops below threshold
Output current for the LC5205D is 0.5 A and for the LC5210D, 1 A. Packaged in a standard 8-pin DIP, with pin 7 removed for greater creepage distance from the supply pin, the series also features overcurrent and thermal-shutdown protection. (ea/1,000, LC5205D, $0.95; LC5210D, $1 — 8 weeks ARO.)

Add comment

You can add a comment by filling out the form below. Plain text formatting. Comments are moderated.

Question: What is 1 + 4 ?
Your answer:

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs Cree, Inc. announces the XLamp® eTone™ LEDs, a breakthrough set of chip-on-board (COB) LEDs that delivers beautiful 90 color rendering index (CRI) light quality at the same efficacy as today’s standard 80 CRI LEDs. Delivering up to 155 lumens per watt (LPW) at 3000 K CCT, 85°C, Cree’s new eTone COB ... Read more »


Luminus Gen 4 COBs: 70W CMH Spots Finally Meet Their Match

Luminus Gen 4 COBs: 70W CMH Spots Finally Meet Their Match Luminus Devices latest, fourth generation chip-on-board LED technology (Gen 4) will open new opportunities in retail lighting and a wide range of indoor and outdoor lighting applications. Luminus Gen 4 COB technology combines significant improvements in efficacy, flux density, high maximum drive ... Read more »


High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »