LTM8042/LTM8042-1

PRODUCTION

μModule (Power Module) Boost LED Driver and Current Source

Data Sheet Product Selection Table

Part Models: 4
1ku List Price: Starting From $13.05

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Overview

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

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.


# WHITE LEDS	LED CURRENT	12V_IN	24V_IN
6	1A	LTM8042
7	350mA	LTM8042-1
8	1A		LTM8042
9	350mA		LTM8042-1

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.

Applications

Display Backlighting
Automotive and Avionic Lighting
Illumination
Scanners

Part Models: 4
1ku List Price: Starting From $13.05

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTM8042EV#PBF	77-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM8042EV-1#PBF	77-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM8042IV#PBF	77-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys
LTM8042IV-1#PBF	77-Lead LGA (15mm x 9mm x 2.82mm)	Material Declaration Reliability Report Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule
		PCN21_0159_Form Material_Report
LTM8042EV#PBF	PRODUCTION
LTM8042EV-1#PBF	PRODUCTION
LTM8042IV#PBF	PRODUCTION
LTM8042IV-1#PBF	PRODUCTION
Feb 28, 2020 - 20_0123 Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia
		PCN20_0123_Form Material_Report Test Correlation Report Other Qualification Results Summary
LTM8042EV#PBF	PRODUCTION
LTM8042EV-1#PBF	PRODUCTION
LTM8042IV#PBF	PRODUCTION
LTM8042IV-1#PBF	PRODUCTION

Software Resources

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Hardware Ecosystem

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Digital to Analog Converters (DACs) 1
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LED Drivers 1
LTM8040	PRODUCTION	36V, 1A μModule (Power Module) LED Driver and Current Source
Oscillators 1
LTC6902	PRODUCTION	Multiphase Oscillator with Spread Spectrum Frequency Modulation
Pulse-Width Modulation (PWM) & Pulse Generators 1
LTC6992		TimerBlox: Voltage-Controlled Pulse Width Modulator (PWM)

Temperature Sensors 1
LTC2991	RECOMMENDED FOR NEW DESIGNS	Octal I²C Voltage, Current, and Temperature Monitor

Tools & Simulations

LTspice 4

Models for the following parts are available in LTspice:

LTM8042
LTM8042-1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

LTM8042EV Demo Board | µModule Boost LED Driver, 3V ≤ VIN ≤ 30V, VOUT up to 32V @ 1A

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Product Details

Demonstration circuits 1511A-A features the LTM8042, which is a complete 1A µModule LED driver. The demonstration circuit is configured using the boost topology, accepting an input voltage from 3V to 30V and supporting an output up to 32V. The default switching frequency is 600kHz for the DC1511A-A, but can be adjusted by changing the value of the RT resistor. DC1511A is easily configured to support other features, including PWM dimming and analog dimming; It also supports buck-boost mode and buck mode (step-down) topologies.

Resources

DC1511A - Demo Manual
10/22/2010

DC1511A - Design Files
10/22/2010

DC1511A - Schematic
10/22/2010

LTM8042EV Demo Board | µModule Boost LED Driver, 3V ≤ VIN ≤ 30V, VOUT up to 32V @ 1A

Buy Now View Details

Product Details

Resources

DC1511A - Demo Manual
10/22/2010

DC1511A - Design Files
10/22/2010

DC1511A - Schematic
10/22/2010

LTM8042EV-1 Demo Board | µModule Boost LED Driver, 3V ≤ VIN ≤ 30V, VOUT up to 32V @ 350mA

Buy Now View Details

Product Details

Demonstration circuits 1511A-B features the LTM8042-1, which is a complete 350mA µModule LED driver. The demonstration circuit is configured using the boost topology, accepting an input voltage from 3V to 30V and supporting an output up to 32V. The default switching frequency is 950kHz for the DC1511A-B, but can be adjusted by changing the value of the RT resistor. DC1511A is easily configured to support other features, including PWM dimming and analog dimming; It also supports buck-boost mode and buck mode (step-down) topologies.