AL1792

Description

The AL1792, a dual-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. 

Feature(s)

• Input Voltage Range: 6.5V to 30V, 2-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

Application(s)

• 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