ILL013V1 80W offline LED driver

Key words: LED driver, ST, Steval-ILL013V1, offline The STEVAL-ILL013v1 of the ST company is an 80W offline LED driver using L6562A. The LED current can be set to 350mA, 700mA, and 1A, the efficiency of about 90%, the input voltage 88V to 265VAC, 110VAC is suitable for its inverse power factor is 0.99, 230VAC is 0.98V, The general PWM dimming input, the brightness is adjusted between 0% and 100%, and the EN55015 is compatible with EN61000-3-2. This article describes the main features, block diagrams of the L6562A, block diagram, and 80W LED driver demo board Steval-ILL013V1 main features, block diagram , Improved design circuitry and material list. L6562A: Transition-Mode PFC Controller The L6562A IS A CURRENT-MODE PFC Controller Operating in Transition Mode (TM). Coming with the Same Pin-Out As ITS Predecessors L6561 And L6562, IT Offers Improved Performance. The highly linear mulTIplier includes a special circuit, able to reduce AC input current distortion, that allows wide-range-mains operation with an extremely low THD, even over a large load range. The Output Voltage Is Controlled by Means of A Voltage-Mode Error Amplifier and an Accurate (1% @tj = 25 ° C) Internal Voltage Reference. The device features extremely low consumption (60μA max. Before start-up and <5 mA operating) and includes a disable function suitable for IC remote ON / OFF, which makes it easier to comply with energy saving requirements (Blue Angel, EnergyStar, Energy2000 , etc.). An effective two-step OVP enables to safely handle overvoltages either occurring at start-up or resulting from load disconnection. The totem-pole output stage, capable of 600 mA source and 800 mA sink current, is suitable to drive high current MOSFETs or IGBTs. This, combined with the other features and the possibility to operate with the proprietary Fixed-Off-Time control, makes the device an excellent low-cost solution for EN61000-3-2 compliant SMPS in excess of 350W. The main characteristics of L6562A: ■ ProPrietary Multiplier Design for minimum THD ■ Very Accurate Adjustable Output Overvoltage Protection ■ Ultra-Low (30μA) Start-Up Current ■ Low (2.5mA) Quiescent Current ■ Digital Leading-Edge Blanking on Current Sense ■ Disable function on E / A Input ■ 1% (@ TJ = 25 ° C) Internal Reference Voltage ■ -600 / + 800ma Totem Pole Gate Driver With Active Pull-Down During Uvlo and Voltage Clamp ■ DIP-8 / SO-8 PACKAGES L6562A application: PFC pre-regulators for: ■ IEC61000-3-2 Compliant SMPS (Flat TV, Monitors, Desktop PC, Games) ■ Hi-End Ac-DC Adapter / Charger Up to 400W ■ Electronic Ballast ■ Entry Level Server & Web Server 2011-11-29 14:02:48 Upload Download Attachment (29.43 KB) Figure 1. L6562A block diagram 2011-11-29 14:02:48 Upload Download Attachment (19.78 KB) Figure 2. EVL6562A-400W circuit diagram 80W LED drive presentation board with PFC steval-ILL013V1 ST The use of high power LEDs in lighting applications is becoming increasingly popular due to rapid improvements in lighting efficiency, longer life, higher reliability and overall cost effectiveness. Dimming functions are more easily implemented in LEDs, and they are more robust and offer wider design Flexibility compared to other light sources. For this reason a demonstration board for driving high brightness and power LEDs has been developed. The STEVAL-ILL013V1 demonstration board is an 80 W offline dimmable LED driver with high power factor (PF) intended for fixed number of LEDs, the overall design of which Is described in detail in this user manual. The LED current can be set to 350 mA, 700 mA and 1000 mA, using jumpers. Additionally, a dimming function using a PWM (pulse width modulation) signal is implemented as well, allowing the user to set the LED brightness from 0% up To 100%. The Demonstration Board Can Be Ordered Using Order Code Steval-ILL013V1, AND IS Shown In Figure 1. Steval-ILL013V1 main features: ■ 80 W LED Driver ■ 350 MA, 700 MA AND 1 a LED CURRENT SETTINGS ■ High efficiency (~ 90%) ■ Wide Input Voltage Range: 88 to 265 VAC ■ High Power Factor: 0.99 for 110 Vac and 0.98 for 230 VAC ■ Universal PWM INPUT for Dimming (External Board Required) ■ Non-isolated SMPS ■ Brightness regulation betWeen 0% and 100% ■ EMI FILTER IMPLEMENTED ■ EN55015 and EN61000-3-2 Compliant 2011-11-29 14:02:48 Upload Download Attachment (67.52 KB)