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Overview
| Topology | Buck Converter |
| Input voltage | 12 V |
| Output 1 | 1.12 A |
| IC revision | Issue 1 |
Description
This evaluation circuit demonstrates theAL8806 High Efficiency 30V 1.5A Buck LEDDriver operating in a circuit providing 1.1ALED current in MR16 form intended to drive 1to 3 high brightness LEDs in series with a totalload voltage drop up to 10V. The circuitincludes a 470μF reservoir capacitor toprevent flicker for 50Hz or 60Hz AC inputpower. EMC filtering is included to meetinternational standards including the radiatedemission requirements of EN55015 andEN55022 Class B.The switching frequency is approximately440kHz when driving 2 Osram DragonDiamond LEDs.The construction uses a double-sided FR4printed circuit board, 17 x 20 x 0.8 mm with2oz/sq ft copper (70μm). Components aremounted on both sides.
Features
- 12VDC and 12VAC input
- 1.1A LED current
- Drives 1 to 3 LEDs in series
- 2% current regulation 9V to 30VDC(with 2 LEDs)
- Ambient temperature range
- 40°C to +105°C
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IRP,40K(A) | ISAT(A) | RDC max.(mΩ) | fres(MHz) | Size | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 15 µH, 2.6 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Inductance15 µH | Performance Rated Current2.6 A | Saturation Current2.2 A | DC Resistance81 mΩ | Self Resonant Frequency19.5 MHz | Size7345 | VersionStandard |