Datasheet Linear Technology LTM8040

Manufacturer	Linear Technology
Series	LTM8040

36V, 1A µModule (Power Module) LED Driver and Current Source

Datasheets

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PDF, 220 Kb, Language: en, File uploaded: Jul 31, 2016, Pages: 20
36V, 1A μModule (Power Module) LED Driver and Current Source

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Packaging

	LTM8040EV#PBF	LTM8040IV#PBF
N	1	2
Package	15mm × 9mm × 4.32mm LGA Package Outline Drawing	15mm × 9mm × 4.32mm LGA Package Outline Drawing
Package Code	LGA	LGA
Package Index	05-08-1810	05-08-1810
Pin Count	66	66

Parametrics

Parameters / Models	LTM8040EV#PBF	LTM8040IV#PBF
Architecture	Improved Average Output Current Control	Improved Average Output Current Control
Demo Boards	DC1274A	DC1274A
Design Tools	LTspice File	LTspice File
Dimming	3000:1 PWM, 10:1 Analog	3000:1 PWM, 10:1 Analog
Export Control	no	no
Features	Programmable Output Current, Constant Current Constant Voltage	Programmable Output Current, Constant Current Constant Voltage
Frequency, kHz	500	500
Ishutdown, µA	.01	.01
Isupply, mA	2.6	2.6
Max Number of LEDs	4	4
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	-40 to 85
Output Current, A	1	1
Switch Current, A	1	1
Synchronous	no	no
Topology	Buck, LED Driver	Buck, LED Driver
Vin Max, V	36	36
Vin Min, V	4	4
Vout Max, V	13	13

Eco Plan

	LTM8040EV#PBF	LTM8040IV#PBF
RoHS	Compliant	Compliant

Design Notes

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uModule LED Driver Integrates All Circuitry, Including the Inductor, in a Surface Mount Package &mdash DN445
PDF, 118 Kb, File published: Jul 29, 2008
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ВµModule LED Driver Integrates All Circuitry, Including the
Inductor, in a Surface Mount Package вЂ“ Design Note 445
David Ng
Introduction
Once relegated to the hinterlands of low cost indicator
lights, the LED is again in the spotlight of the lighting
world. LED lighting is now ubiquitous, from car headlights
to USB-powered lava lamps. Car headlights exemplify
applications that capitalize on the LEDвЂ™s clear advantagesвЂ”unwavering high quality light output, tough-assteel robustness, inherent high efп¬ЃciencyвЂ”while a USB
lava lamp exempliп¬Ѓes applications where only LEDs work.
Despite these clear advantages, their requirement for
regulated voltage and current make LED driver circuits
more complex than the venerable light bulb, but some new
devices are closing the gap. For instance, the LTM В®8040
ОјModuleв„ў LED driver integrates all the driver circuitry
into a single package, allowing designers to refocus their
time and effort on the details of lighting design critical
to a productвЂ™s success.
A Superior LED Driver
The LTM8040 is a complete step-down DC/DC switching converter system that can drive up to 1A through a
string of LEDs. Its 4V to 36V input voltage range makes
it suitable for a wide range of power sources, including
2-cell lithium-ion battery packs, rectiп¬Ѓed 12VAC and …

Articles

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uModule LED Driver Integrates All Circuitry, Including the Inductor, in a Surface Mount Package &mdash LT Journal
PDF, 420 Kb, File published: Sep 1, 2009
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DESIGN IDEASвЂ‰L ВµModule LED Driver Integrates All
Circuitry, Including the Inductor,
in a Surface Mount Package by David Ng
Introduction
Once relegated to the hinterlands of
low cost indicator lights, the LED is
again in the spotlight of the lighting
world. LED lighting is now ubiquitous,
from car headlights to USB-powered
lava lamps. Car headlights exemplify
applications that capitalize on the
LEDвЂ™s clear advantagesвЂ”unwavering
high quality light output, toughas-steel robustness, inherent high
efficiencyвЂ”while a USB lava lamp
exemplifies applications where only
LEDs work. Despite these clear advantages, their requirement for regulated
voltage and current make LED driver
circuits more complex than the vener-VIN
14V TO 36V C1
2.2ВµF LEDA VIN 1A LPWR
SHDN
LTM8040
ADJ …

Model Line

Series: LTM8040 (2)

LTM8040EV#PBF LTM8040IV#PBF

Manufacturer's Classification

Power Management > LED Driver ICs > Step-Down (Buck) LED Drivers
Power Management > Current Sources
µModule Solutions > µModule LED Drivers