Datasheet Linear Technology LT3497EDDB#PBF

Manufacturer	Linear Technology
Series	LT3497
Part Number	LT3497EDDB#PBF

Dual Full Function White LED Driver with Integrated Schottky Diodes

Datasheets

PDF, 354 Kb, File uploaded: Oct 4, 2017

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Packaging

Package	3x2 DFN-10
Package Code	DDB
Package Index	05-08-1722

Parametrics

Architecture	Average Output Current Control
Demo Boards	DC1019A
Design Tools	LTspice File
Dimming	PWM, Analog
Export Control	no
Features	Integrated Schottky Diode, High Side Current Sense, Open LED Protection, True Color PWM
Frequency	2300 kHz
Ishutdown	12 µA
Isupply	6 mA
Max Number of LEDs	2 x 6
Monolithic	yes
Number of Outputs	2
Operating Temperature Range	0 to 85 °C
Switch Current	0.4 A
Synchronous	no
Topology	Boost, LED Driver
Vin Max	10 V
Vin Min	2.5 V
Vout Max	35 V

Eco Plan

RoHS

Compliant

Articles

Download
Light Up 12 LEDs from a Single-Cell Li-Ion Battery via Highly Integrated 3mm x 2mm Dual-LED-String Driver &mdash LT Journal
PDF, 1.1 Mb, File published: Oct 16, 2007
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DESIGN FEATURESвЂ‰L Light Up 12 LEDs from a Single-Cell
Li-Ion Battery via Highly Integrated
3mm Г— 2mm Dual-LED-String Driver
by Ben Chan Introduction
The LT3497 is a dual step-up converter capable of driving up to 12
white LEDs from a single-cell Li-Ion
input. The device is capable of driving
asymmetric LED strings with independent dimming and shutdown control,
perfect for driving backlight circuits
in battery-powered portable devices,
such as cellular phones, MP3 players,
PDAs, digital cameras, and portable
GPS devices.
The LT3497 directly regulates
LED current, providing consistent
brightness for all LEDs regardless
of variations in their forward voltage
drop. Important features including
internal compensation, open-LED protection, DC/PWM dimming control, a
35V power switch and a 35V Schottky
diode are all integrated into the part,
making the LT3497 LED driver an
ideal solution for space-constrained …

Model Line

Series: LT3497 (3)

LT3497EDDB#PBF LT3497EDDB#TRMPBF LT3497EDDB#TRPBF

Manufacturer's Classification

Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers

Other Names:

LT3497EDDBPBF, LT3497EDDB PBF

Slices

Microcontrollers