LTM8042

LTM8042/LTM8042-1 µModule Boost LED Driver and Current Source FEATURES n n n DESCRIPTION The LTM®8042 is a complete μModule® Boost LED Driver specifically designed to drive LEDs up to 1A, while the LTM8042-1 drives up to 350mA. It combines a boost power topology with a unique current loop to operate as a constant-current source. The PWM input provides as much as 3000:1 LED dimming, while 10:1 analog dimming can be accomplished by a single resistor or analog voltage applied to the CTL pin. As with any boost topology, the LTM8042/LTM8042-1 has an uninterrupted current path between its input and output and is thus intolerant to a short-circuit or overload from the output to ground. # WHITE LEDS 6 7 8 9 LED CURRENT 1A 350mA 1A 350mA 12VIN LTM8042 LTM8042-1 LTM8042 LTM8042-1 24VIN n n n n n n True Color PWM™ with 3000:1 Dimming Ratio Operates in Boost, Buck Mode or Buck-Boost Mode Wide Input Voltage Range: Operation from 3V to 30V Transient Protection to 40V Gate Driver for Optional PWM Dimming with P-channel MOSFET Adjustable Frequency: 250kHz to 2MHz Constant-Current and Constant-Voltage Regulation Low Shutdown Current: