Diodes Incorporated AL177x Linear LED Drivers
Diodes Incorporated AL177x Linear LED Drivers are highly-integrated chips with an offline High-Power Factor Correction (PFC) controller and a single/dual-channel linear driver in one package. These LED drivers implement an optimized 2-stage topology for a wide power range of connected lighting applications. The AL177x linear LED drivers feature excellent dimming performance, low-standby power, ease of system implementation, and great product scalability. The AL177x LED drivers are targeted for 1-channel dimmable and 2-channel tunable white connected bulbs, smart connected LED tubes, panel-lights, troffers, and various connected lighting applications.
Features
High PFC controller and dimmable linear LED driver in one packageValley detection to achieve low switching loss and high-efficiency6.5V to 30V input voltage range for LED driver≤ ±4% LED current accuracy1500mA maximum LED current for AL1771 driver750mA maximum LED current for AL1772 driverLow system BOM-40°C to 125°C ambient operating temperature rangeEach channel independent PWM dimming controlAdjustable reference current by external reference resistorsAdaptive Thermal Management (ATM) scheme to minimize power dissipationLow standby power mode with automatic enter and exitHigh-frequency E-flicker free PWM dimming with deep dimming capability
Applications
1-channel dimmable connected light bulbs2-channel tunable white connected bulbsSmart connected LED tubes
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