MSL2023_14 Datasheet, PDF (1/40 Pages) ATMEL Corporation – Atmel LED Drivers

Atmel LED Drivers
MSL2023 / MSL2024
2-String LED Driver with Individual PWM Dimming
and Adaptive Headroom Control for High CRI LED
Luminaires
Features
 Dual-string LED driver for 2-color or 2 unequal V_F LEDs
 Phase shifted register controlled dimming (MSL2023)
 Individual PWM inputs (MSL2024)
 Adaptively controls headroom of AC/DC or DC/DC, isolated or non-isolated
topologies
 Main LED string driven by linear current controller
 Drives external N-channel MOSFET
 ± 3% current accuracy, no ripple current
 8-bit DAC for peak current control
 Color-adjust LED string uses floating buck controller
 Drives external N-channel MOSFET
 Over 100:1 dimming range
 Open and short LED detection
 8-bit DAC allows changing current sense threshold
 I²C accessible driver settings and EEPROM
 Open-drain fault indicator output
 -40°C to +105°C operating temperature range
Typical Applications
 General and architectural lamps
 High CRI LED fixtures
 Down lights and recessed lights
 PAR lamps
42063A–LED–02/2013