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AL1677 Datasheet

Part Number AL1677
Manufacturers Diodes
Logo Diodes
Description HIGH EFFICIENCY AND ACCURACY LED DRIVER CONVERTER
Datasheet AL1677 DatasheetAL1677 Datasheet (PDF)

NEW PRODUCT AL1677 UNIVERSAL, HIGH EFFICIENCY AND ACCURACY LED DRIVER CONVERTER Description The AL1677 is a universal AC-input (85~277 VAC), high-efficiency and high-accuracy Buck LED-driver converter. The AL1677 topology provides accurate constant current (CC) 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 AL1677 system removes the auxiliary winding and external highvoltage MOSFET with .

  AL1677   AL1677






Part Number AL1678-20B
Manufacturers Diodes
Logo Diodes
Description 500V BUCK LED DRIVER
Datasheet AL1677 DatasheetAL1678-20B Datasheet (PDF)

OBSOLETE – PART DISCONTINUED PART OBSOLETE – NO ALTERNATE PART AL1678-20B/10B/08B UNIVERSAL, 500V BUCK LED DRIVER Description The AL1678-20B/10B/08B is a universal AC input (85 to 277 VAC), high efficiency and high accuracy Buck LED driver. The AL167820B/10B/08B topology provides accurate constant current over line and load regulation with tight tolerance ±3%, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws. The AL167.

  AL1677   AL1677







Part Number AL1678-10B
Manufacturers Diodes
Logo Diodes
Description 500V BUCK LED DRIVER
Datasheet AL1677 DatasheetAL1678-10B Datasheet (PDF)

OBSOLETE – PART DISCONTINUED PART OBSOLETE – NO ALTERNATE PART AL1678-20B/10B/08B UNIVERSAL, 500V BUCK LED DRIVER Description The AL1678-20B/10B/08B is a universal AC input (85 to 277 VAC), high efficiency and high accuracy Buck LED driver. The AL167820B/10B/08B topology provides accurate constant current over line and load regulation with tight tolerance ±3%, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws. The AL167.

  AL1677   AL1677







Part Number AL1678-08B
Manufacturers Diodes
Logo Diodes
Description 500V BUCK LED DRIVER
Datasheet AL1677 DatasheetAL1678-08B Datasheet (PDF)

OBSOLETE – PART DISCONTINUED PART OBSOLETE – NO ALTERNATE PART AL1678-20B/10B/08B UNIVERSAL, 500V BUCK LED DRIVER Description The AL1678-20B/10B/08B is a universal AC input (85 to 277 VAC), high efficiency and high accuracy Buck LED driver. The AL167820B/10B/08B topology provides accurate constant current over line and load regulation with tight tolerance ±3%, operating at boundary conduction mode (BCM) to ease in EMI/EMC qualification and testing to meet the latest regulatory laws. The AL167.

  AL1677   AL1677







Part Number AL1676
Manufacturers Diodes
Logo Diodes
Description UNIVERSAL HIGH POWER FACTOR BUCK LED DRIVER
Datasheet AL1677 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.

  AL1677   AL1677







HIGH EFFICIENCY AND ACCURACY LED DRIVER CONVERTER

NEW PRODUCT AL1677 UNIVERSAL, HIGH EFFICIENCY AND ACCURACY LED DRIVER CONVERTER Description The AL1677 is a universal AC-input (85~277 VAC), high-efficiency and high-accuracy Buck LED-driver converter. The AL1677 topology provides accurate constant current (CC) 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 AL1677 system removes the auxiliary winding and external highvoltage MOSFET with few external components to create a low bill of material (BOM) cost solution. The AL1677 has rich protection features to enhance system safety and reliability. With thermal foldback function, the AL1677 can reduce output current when the driver’s temperature is higher than the setting value. Pin Assignments (Top View) GND 1 ROVP 2 NC 3 VCC 4 8 CS 7 CS 6D 5D SO-8 The AL1677 is available in SO-8 package. Features  > 90% Efficiency  Valley Detection to Minimize Switching Loss  Universal 85 to 277 VAC Input Range  Internal MOSFET up to 500V  Tight Current Sense Tolerance : ± 3%  Low Startup Current: 170µA  Low Operation Current: 100µA (Static)  Standard Inductor (no auxiliary winding)  Internal Protections - Undervoltage Lockout (UVLO) - Leading-Edge Blanking (LEB) - Cycle-by-cycle Overcurrent Protection(OCP) - Output Open/Short Protection(OVP/OSP) - Open-Load and Reload Detection - Thermal Foldback Function(TFP) - Over-Temperature Protection(OTP)  SO-8 Package  Totally Le.


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