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Details for ADM00656 by Microchip Technology
Education Maker & Hobbyist Electronics > Development Boards & Evaluation Kits > Lighting Development Kits
ADM00656
Buy Directly from Microchip Technology Inc (12 in stock) $63.9900
EVAL BOARD HV9805 OFF-LINE LED DRIVER
ADM00656 image

ADM00656 by Microchip Technology

EVAL BOARD HV9805 OFF-LINE LED DRIVER
Features
Boost Converter Cascode Switch:
Boundary Conduction Mode (BCM) Boost Converter with Power Factor Correction a) High Power Factor (98% typical) b) High Efficiency (90% typical)
Compatibility with SEPIC Topology for
Driver topology includes:
Internal Switch rated at 700 mA peak
Linear Post-Regulator with Low Overhead Voltage a) Zero LED Current/Brightness Ripple b) Overvoltage Protection for LEDs c) High Efficiency d) u00b14% Reference Over Temperature
No Auxiliary Winding Required
Simple VDD Supply:
Supports up to 25W at 120VAC
Supports up to 50W at 230VAC
Part Information
ADM00656 image
RoHS Compliant
Description
The HV9805 driver integrated circuit (IC) is targeted at general LED lighting products, such as LED lamps and LED lighting fixtures with a maximum power rating of about 25W at 120VAC and about 50W at 230VAC. A two-stage topology provides true constant current drive for the LED load while drawing mains power with high power factor. The first stage, a boundary conduction mode boost converter, transfers power from the AC line to a second stage with high power factor and high efficiency. The second stage, a linear regulator arranged for operation with low overhead voltage, transfers power from the first stage to the LED load with true constant current and protects the LED load from overvoltage that may pass from mains to the output of the first stage. The IC is particularly geared to drive a high voltage LED load. An LED load arranged as a high-voltage load is capable of offering cost advantages in terms of heat management and optics. The boost converter employs a cascode switch for high-speed switching and convenient generation of the VDD supply. The control device of the cascode switch is an integral part of the HV9805 and is rated at 700 mA peak. Current for powering the VDD supply is derived by way of an internal connection to the cascode switch. Applications with low output voltage can be accommodated using the SEPIC topology. Network Topology Diagram AC Off-Line LED Driver with True DC Output Current
Specifications
Device Topology:
Boost SEPIC
No. of Outputs:
1Outputs
Output Current:
100mA
Output Voltage:
125VDC
Input Voltage Min:
195.5VAC
Input Voltage Max:
264.5VAC
Core Chip:
HV9805
Dimming Control Type:
-
Kit Contents:
Eval Board HV9805 Information Sheet
Product Range:
-
SVHC:
No SVHC (15-Jan-2018)
Alternate Descriptions
EVALUATION BOARD, HV9805 OFF-LINE LED DRIVER; Device Topology:Boost, SEPIC; No. of Outputs:1Outputs; Output Current:100mA; Output Voltage:125VDC; Input Voltage Min:195.5VAC; Input Voltage Max:264.5VAC; Core Chip:-; Product Range:- RoHS Compliant: NA Newark Electronics
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