AL1794AFE-13

Al1794AFE-13 is a quad-channel current-ratio-optimized LED driver with analogue and PWM dimming. It is targeted for tunable white/colour smart lighting applications. It serves as the LED driving element along with the AC-DC power conversion block and intelligent wireless McU as an emerging smart-connected lighting system configuration. the key merits attributed to cost-effectiveness, dimming performance, low standby power, ease of system implementation, and great scalability. The application includes 1-channel dimmable smart connected light (scl) bulbs, 2-channel tunable white scl bulbs, 3-channel tunable white or colour scl bulbs, 4-channel tunable white+color scl bulbs, smart connected LED tubes, Panel lights, troffers, and ceiling lights.

• 1:1:0.75:0.25 current ratio, reference current: adjustable by an external reference resistor
• 4-channel LED drivers: independent analog or PWM dimming control for each channel
• Ratio-optimized current for 4 independent LED channel, suitable for tunable white and tunable colour
• Low standby power: with EN pin
• Internal protections under voltage lockout (UVLO), LED string open/short protection
• Over-temperature protection (OTP) thermal shutdown and auto thermal recovery
• Fault reporting UVLO, OTP, open, and short LED power good reporting, low system BOM cost
• Input voltage at VIN range from 6.5 to 30V (TA = +25°C)
• 2mA quiescent supply current typ (Enabled, LEDx floating, PWMx are “L”, RSET is 12Kohm, TA = +25°C)
• U-dFN4030-14 package, operating ambient temperature range from -40 to 125°C