AL1794:线性LED 驱动

Part NumberData SheetSPICE ModelQualified to AECQ10xPPAP CapableTopologyMinimum Supply Voltage (V)Maximum Supply Voltage (V)Maximum VOUT (V)Number of ChannelsLED Current Sense Voltage (mV)OutputCurrent (mA)LED Current (mA)Accuracy (%)Frequency (kHz)Efficiency (%)DimmingTemperature Range (°C)
AL1794AL1791_1792_1793_1794.pdf-NoNoLinear LED Driver6.530304-150 450 600150 450 6002.5-90Linear and PWM-40 to +105
Description

The AL1794, a quad-channel LED driver with analog and PWM dimming control, is targeted for Tunable White/Color Smart Lighting application. It serves as the LED driving element along with AC-DC Power Conversion Block and Intelligent MCU as emerging smart light bulb configuration. The key merits attribute to cost-effectiveness, dimming performance, low standby power, ease of system implementation, and great scalability. 

Application
  • Tunable Color Smart LED Light Bulbs
  • Tunable White Smart LED Light Bulbs
  • Dimmable Smart LED Light Bulbs
  • LED Power Supply
  • Smart Lighting
  • DC-DC
  • LED Drivers
Features
  • Input Voltage Range: 6.5V to 30V, 1/2/3/4-channel LED drivers: independent Analog or PWM dimming control for each channel
  • Reference Current: Adjustable by an external reference resistor
  • Ratio-optimized currents for 4 independent LED channels (AL1794 only): Suitable for Tunable White and Tunable Color
  • Low Standby Power: With EN pin
  • E-flicker free PWM dimming: Support 4KHz down to sub-1%
  • Internal Protections: Under Voltage Lockout (UVLO)
  • LED string open/short protection
  • Over temperature protection (OTP): Thermal fold-back and Thermal shut down
  • Fault Reporting: UVLO, OTP, Open, and Short
  • LED Power Good Reporting
  • Low system BOM cost
  • Ambient Temperature Range -40°C to +105°C
订购型号
  • AL1794AFE-13
  • AL1794EV1
U-DFN4030-14
AL1791_1792_1793_1794.pdf AL1794