Part # Brief STEVAL-ILL001V1 VIPER22A-E TSM104 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Dimmable driver for HB power LEDs with VIPER22A-E (DALI connector)

Part Details:

STEVAL-ILL001V1 Dimmable driver for HB power LEDs with VIPER22A-E (DALI connector) Data Brief Features Selectable input voltage range: 85 VAC - 135 VAC or 185 VAC ­ 265 VAC Nominal output voltage range: 3.5 V - 28 V Maximum output voltage at open load: 32 V Output current: 350 mA Dimming range: 0 - 90% STEVAL-ILL001V1 EMI standard: EN55015:2000 Description The STEVAL-ILL001V1 evaluation board introduces an innovative solution for driving high brightness 1 W LEDs (light emitting diodes), using the VIPer22A-E in a flyback configuration with output current control. The power supply is capable of driving a 1 to 8 LED array in the European voltage range of 185-265 VAC without modifications. The same VIPer device can also function within the specifications in the U.S. input voltage range by using an input voltage doubler. An innovative control technique is used to adjust the duty cycle of the output current, in order to dim the luminosity of the LEDs down to 10% of the maximum value (STMicroelectronics patent pending). The proposed driver is suitable for applications such as landscape lighting, street lighting, car parks, bollards, garden lighting, large area displays, etc. Domestic applications such as room lighting, decorative fixtures and architectural lighting can also benefit from a dimmable light source. October 2007 Rev 1 1/4 For further information contact your local STMicroelectronics sales office. 4 Board schematic STEVAL-ILL001V1 1 Board schematic Figure 1. Schematic IN IN Fs C1 CM C14 D2 D1 D4 D3 C3 J3 C2 + + +Vcc OP T C6 C7 Q2 FB R3 R4 Q1 VD CONT

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Brief STEVAL-ILL001V1 VIPER22A-E TSM104.pdf Datasheet