LTM8042/LTM8042-1 - μModule (Power Module) Boost LED Driver and Current Source

The LTM8042 is a complete μModule (power module) 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.

The LTM8042/LTM8042-1 is packaged in a thermally enhanced, compact overmolded land grid array (LGA) package. The LTM8042/LTM8042-1 is Pb-free and a RoHS compliant.

Features

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: <1μA
RoHS Compliant Package with Gold Pad Finish
Tiny, Low Profile (9mm × 15mm × 2.82mm) Surface Mount LGA Package

Typical Application

Applications

Display Backlighting
Automotive and Avionic Lighting
Illumination
Scanners

Packaging

**Order Information**
Part Number	Package	Temp	Price(1-99)	Price (1k)*
LTM8042EV-1#PBF	15mm x 9mm x 2.82mm LGA	E	$12.51	$8.76
LTM8042EV#PBF	15mm x 9mm x 2.82mm LGA	E	$12.51	$8.76
LTM8042IV-1#PBF	15mm x 9mm x 2.82mm LGA	I	$13.39	$9.37
LTM8042IV#PBF	15mm x 9mm x 2.82mm LGA	I	$13.39	$9.37

Demo Boards


Part Number	Description	Price
DC1511A-A	LTM8042EV Demo Board \| uModule Boost LED Driver, 3V ≤ VIN ≤ 30V, Vout up to 32V @ 1A	$65.00
DC1511A-B	LTM8042EV-1 Demo Board \| uModule Boost LED Driver, 3V ≤ VIN ≤ 30V, Vout up to 32V @ 350mA	$65.00