Diodes Inc. AL179x LED Drivers are single/multichannel LED drivers with analog and PWM dimming control. They are targeted for Tunable White/Color Smart Lighting applications. The AL179x serve as the LED driving element along with AC-DC Power Conversion Block and Intelligent wireless MCU as an emerging smart-connected lighting system configuration. They feature cost effectiveness, dimming performance, low standby power, ease of system implementation and great scalability. AL1791, AL1792, AL1793, and AL1794 are 1-channel, 2-channel, 3-channel, and 4- channel LED drivers.
Feature
- Input Voltage Range: 6.5V to 30V, 1-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
Applications
- 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
