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Overview
The ATtiny24A-based dimmable MR16 LED driver module allows you to develop MR16 or equivalent lamps. The kit comes with a power supply module and an LED board. The circuit is a two-stage switched-mode power supply consisting of a boost converter followed by a constant-current buck converter. Both of these topologies are implemented digitally in a single ATtiny24A microcontroller. The circuit operates with leading- or trailing-edge dimmers. Input can be 12VDC or 12VAC from an electronic or magnetic transformer. The design is flexible and scalable and works with different LED configurations. Firmware used to pre-program the ATtiny24A is available through local sales offices.
- Excellent compatibility with available dimmers and electronic transformer combinations
- Flicker-free operation with a wide dimming range
- Programmable solution to suit a wide range of designs
- Dual-stage topology results in excellent regulation of LED current
- Pre-programmed operation with 50Hz, 60Hz or DC sources
- Open lamp protection LED short-circuit protection
- Over-current protection (OCP)
- Over-voltage protection (OVP)
- Components fit in an ANSI form-factor
- 125??C operation ATtiny24A available in SO-14 package for prototype and QFN-16 4x4 mm package for production
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Documentation
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| Dimmable MR16 Development Kit | User Guide | Download |