AL1782T16E-13

AL1781/1782 Single/Dual Dimmable Linear LED Driver Description Pin Assignments NEW PRODUCT The AL1781/1782, a single/dual-channel dimmable Linear LED driver with PWM dimming control, is targeted for 1-Channel dimmable and 2-Channel tunable Smart Connected Lighting (SCL) applications. It serves as the LED driving element along with AC-DC Power Conversion Block and Intelligent wireless MCU as an emerging connected lighting applications. (Top View) The AL1781/1782 key merits attribute to dimming performance, low standby power, ease of system implementation and great scalability. It supports High Frequency E-flicker free PWM dimming with Deep Dimming Capability: Support 40kHz down to 4%, 10kHz down to 1.0%, 4kHz down to 0.4%, or 1kHz down to 0.1% with good dimming linearity. When no PWM signal is detected by AL1781/1782, it will automatically enter the low-power mode for power saving purpose to be in compliance with Energy Star standby power requirement for connected lighting requirements. Integrates Adaptive Thermal Management (ATM) scheme to minimize non-productive power dissipation. Features                  Input Voltage Range: 6.5V to 30V Independent PWM Dimming Control for Each Channel Adjustable Reference Current by External Reference Resistors LED Current Accuracy ≤ ±4% Maximum LED Current 1500mA for AL1781 and 750mA Per Channel for AL1782 Adaptive Thermal Management (ATM) Scheme to Minimize Power Dissipation Automatically Enter and Exit Low Standby Power Mode High Frequency E-flicker Free PWM Dimming Internal Protections: Under Voltage Lockout (UVLO); LED String Open/Short Protection; Over-Temperature Protection (OTP): Thermal Shutdown and Auto Thermal Recovery Fault Reports: UVLO, OTP, LED Open/Short Ambient Temperature Range -40°C to +125°C TSSOP-16EP (Type DX): “Green” Molding Compound (No Br, Sb) Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1 16 REF1 NC 2 15 TP NC 3 14 FAULTB PWM1 4 13 LEDPG GND 5 12 GND NC 6 11 GND NC 7 10 LED1 NC 8 9 LED1 EP TSSOP-16EP (Type DX) (AL1781) (Top View) The AL1781/1782 has protection features, including Under-VoltageLockout (UVLO), LED string Open/Short protection and Overtemperature protection (OTP). AL1781 is a single channel and AL1782 is a dual-channel LED driver. They can support high LED current (up to total 1500mA) applications and they are available in Low thermal resistance TSSOP-16EP (Type DX) package. VIN VIN 1 16 REF1 NC 2 15 REF2 PWM2 3 14 FAULTB PWM1 4 13 LEDPG GND 5 12 GND NC 6 11 GND LED2 7 10 LED1 LED2 8 9 LED1 EP TSSOP-16EP (Type DX) (AL1782) Applications     1-Channel Dimmable Connected Light Bulbs 2-Channel Tunable White Connected Bulbs Multiple-Channel of Connected Lighting System Connected LED Tubes, Panel Lights, Troffers, and Ceiling Lights 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free. 3. Halogen- and Antimony-free "Green” products are defined as those which contain