EVLB001 Datasheet, PDF (6/35 Pages) ATMEL Corporation – Automatic microcontroller dimmable ballast

Section 2
Ballast Demonstrator Device Features
2.1
Atmel Supported AT90PWM2B/216 Microcontroller
Products
• High speed comparator for PFC zero crossover detection
• 6 Analog inputs for A/D conversion, 2.56V reference level
• 3 Digital inputs used for the dimming control input
• 3 High speed configurabel PWM outputs used for the PFC and half bridge driver
• A fully differential A/D with programmable gain used for efficient current sensing
• SOIC 24 pin package
• Low power consumption in standby mode
2.2 IXYS^® Supported
Products
IXI859 Charge pump with voltage regulator and MOSFET driver
• 3.3V regulator with undervoltage lockout
• Converts PFC energy to regulated 15VDC
• Low propagation delay driver with 15V out and 3V input for PFC FET gate
IXTP3N50P MOSFET
• 500V, low R_DS (ON) power MOSFET, 3 used in design
IXTP02N50D depletion mode MOSFET
• 500V, 200mA, normally ON, TO-220 package and configured as current source
IXD611S MOSFET driver
• Up to 600mA drive current
• half bridge, high and low side driver in a single surface mount IC
• Undervoltage lockout
ATAVRFBKIT / EVLB001 User Guide
2-4
7597B–AVR–10/07