DatasheetsPDF.com

AL1676 Dataheets PDF



Part Number AL1676
Manufacturers Diodes
Logo Diodes
Description UNIVERSAL HIGH POWER FACTOR BUCK LED DRIVER
Datasheet AL1676 DatasheetAL1676 Datasheet (PDF)

NOT RECOMMENDED FOR NEW DESIGN NO ALTERNATIVE PART AL1676 UNIVERSAL HIGH POWER FACTOR BUCK LED DRIVER Description The AL1676 is a universal AC input (85~277 VAC), high power factor (PF) and high efficiency Buck LED driver. The AL1676 topology provides accurate constant current (CC) with good line and load regulation, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws. The AL1676 single Buck stage driver works with a sing.

  AL1676   AL1676


Document
NOT RECOMMENDED FOR NEW DESIGN NO ALTERNATIVE PART AL1676 UNIVERSAL HIGH POWER FACTOR BUCK LED DRIVER Description The AL1676 is a universal AC input (85~277 VAC), high power factor (PF) and high efficiency Buck LED driver. The AL1676 topology provides accurate constant current (CC) with good line and load regulation, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws. The AL1676 single Buck stage driver works with a single winding inductor and High voltage MOSFET included, therefore, can use fewer external components and create a low bill of material (BOM) cost solution. The AL1676 has rich protection features to enhance system safety and reliability, including under voltage lock out (UVLO), LED open/short, over voltage, over current, over temperature protection and thermal fold-back function which can reduce output current when the driver’s temperature is higher than the setting value. Pin Assignments (Top View) VCC 1 ROVP 2 COMP 3 GND 4 7D 6 NC 5 CS SO-7 The AL1676 is available for SO-7 package. Features • >90% Efficiency • Universal 85 to 277 VAC Input Range • Multiple Options for Internal MOSFET • Tight Output Current Tolerance: ±3% • Low Startup Current: 100µA • Low Operation Current: 170µA (5KHs Switching) • Single Winding Inductor • Internal Protections:  Under Voltage Lock Out (UVLO)  Leading-Edge Blanking (LEB)  Cycle-by-cycle Over Current Protection (OCP)  Output Open/Short Protection (OVP/OSP)  Thermal Fold-back Protection (TFP)  Over Temperature Protection (OTP) • SO-7 Package • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) Applications • Retrofit LED Lamps • LED Tube • High Voltage DC-DC LED Driver • General Purpose Constant Current Source Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See http://www.diodes.com/quality/lead_free.html 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds. AL1676 Document number: DS38290 Rev. 2 - 3 1 of 15 www.diodes.com February 2021 © Diodes Incorporated Typical Applications Circuit L1 AC Input F1 DB1 C1 C2 AL1676 R1 R2 VR C3 R3 C4 U1 AL1676 VCC D ROVP COMP NC GND CS D1 R4 C5 + L2 R5 OUT Pin Descriptions Pin Number 1 2 3 4 5 6 7 Pin Name VCC ROVP COMP GND CS NC D Function Power supply voltage Resistor set the open voltage Compensation for current control Ground Current sensing No connection Drain of the internal high voltage MOSFET Functional Block Diagram VCC 1 STOP Fault Management OFF UVLO 2 ROVP COMP 3 OSP OTP OVP OVP OVP tOFF VOVP_REF S R Q + STOP - GND 4 ManaVgCeCment VCC Clamp VDD VOVP_REF VREF OSP tOFF tOFF Detection (ZCD) VCC Driver Supply Clamp OCP - 0.8V + + Gm - VREF Sample and Hold 7D 6 NC 5 CS AL1676 Document number: DS38290 Rev. 2 - 3 2 of 15 www.diodes.com February 2021 © Diodes Incorporated AL1676 Absolute Maximum Ratings (@TA = +25°C, unless otherwise specified.) (Note 4) Symbol VCC VD ID VCS VROVP TJ TSTG TLEAD PD θJA θJC – Power Supply Voltage Parameter Voltage on D Pin (AL1676-20AS7-13) Voltage on D Pin (AL1676-30AS7-13) Voltage on D Pin (AL1676-10BS7-13) Voltage on D Pin (AL1676-20BS7-13) Voltage on D Pin (AL1676-20CS7-13) Voltage on D Pin (AL1676-40DCS7-13) Continuous Drain Current TC = +25°C (AL1676-20AS7-13) Continuous Drain Current TC = +25°C (AL1676-30AS7-13) Continuous Drain Current TC = +25°C (AL1676-10BS7-13) Continuous Drain Current TC = +25°C (AL1676-20BS7-13) Continuous Drain Current TC = +25°C (AL1676-20CS7-13) Continuous Drain Current TC= +25°C (AL1676-40DS7-13) Voltage on CS Pin Voltage on ROVP Pin Operating Junction Temperature Storage Temperature Lead Temperature (Soldering, 10 seconds) Power Dissipation and Thermal Characteristics (TA = +50°C) Thermal Resistance (Junction to Ambient) (Note 5) Thermal Resistance (Junction to Case) (Note 5) ESD (Human Body Model) ESD (Machine Model) Rating 18 300 300 500 500 600 670 2.0 3.0 1.0 2.0 2.0 4.0 -0.3 to 7 -0.3 to 7 -40 to +150 -65 to +150 +260 0.8 123 19 2000 200 Unit V V V V V V V A A A A A A V V °C °C °C W °C/W ºC/W V V Notes: 4. Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability. 5. Device mounted on 1"x1" FR-4 substrate PCB, 2oz copper, with minimum recommen.


AH5775 AL1676 AL1677


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)