Datasheet Linear Technology LT3498

Manufacturer	Linear Technology
Series	LT3498

20mA LED Driver and OLED Driver with Integrated Schottky in 3mm x 2mm DFN

Datasheets

PDF, 370 Kb, Revision: A, File uploaded: Sep 18, 2017

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Prices

Packaging

	LT3498EDDB#PBF	LT3498EDDB#TRMPBF	LT3498EDDB#TRPBF
N	1	2	3
Package	3x2 DFN-12 Package Outline Drawing	3x2 DFN-12 Package Outline Drawing	3x2 DFN-12 Package Outline Drawing
Package Code	DDB	DDB	DDB
Package Index	05-08-1723	05-08-1723	05-08-1723
Pin Count	12	12	12

Parametrics

Parameters / Models	LT3498EDDB#PBF	LT3498EDDB#TRMPBF	LT3498EDDB#TRPBF
Demo Boards	DC1137A	DC1137A	DC1137A
Design Tools	LTspice File	LTspice File	LTspice File
Export Control	no	no	no
Features	Open LED Protection, Output Disconnect, Integrated Schottky Diode	Open LED Protection, Output Disconnect, Integrated Schottky Diode	Open LED Protection, Output Disconnect, Integrated Schottky Diode
Frequency, kHz	2300	2300	2300
Ishutdown, µA	8	8	8
Isupply, mA	1.65	1.65	1.65
Max Number of LEDs	6 + Boost	6 + Boost	6 + Boost
Monolithic	yes	yes	yes
Number of Outputs	2	2	2
Operating Temperature Range, °C	0 to 85	0 to 85	0 to 85
Switch Current, A	0.425	0.425	0.425
Synchronous	no	no	no
Topology	Boost, LED Driver	Boost, LED Driver	Boost, LED Driver
Vin Max, V	12	12	12
Vin Min, V	2.5	2.5	2.5
Vout Max, V	32	32	32

Eco Plan

	LT3498EDDB#PBF	LT3498EDDB#TRMPBF	LT3498EDDB#TRPBF
RoHS	Compliant	Compliant	Compliant

Articles

Download
White LED Driver and OLED Driver with Integrated Schottkys and Output Disconnect in 3mm x 2mm DFN &mdash LT Journal
PDF, 382 Kb, File published: Oct 16, 2007
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DESIGN FEATURESвЂ‰L White LED Driver and OLED Driver
with Integrated Schottkys and Output
Disconnect in 3mm Г— 2mm DFN
by Alan Wei Introduction Linear Technology Magazine October 2007 VIN
3V TO 5V 4.7ВµF 15ВµH 0.47ВµF 15ВµH 16V
24mA 1ВµF
CAP1 SW1 10в„¦ VIN SW2 CAP2 VOUT2 10ВµF LT3498
LED1
20mA CTRL1 GND1 GND2 OFF ON
SHUTDOWN
AND
DIMMING
CONTROL CTRL2 FB2 2.21Mв„¦ OFF ON
SHUTDOWN
AND
CONTROL Figure 1. Li-Ion to six white LEDs and an OLED display ing battery life in application modes
where the LED driver is temporarily
disabled.
FigureВ 1 shows a typical application
driving 6 LEDs and an OLED. Figures
2 and 3 show the efficiency of the LED
driver and OLED driver respectively. Features
LED Driver High Side Sense …

Model Line

Series: LT3498 (3)

LT3498EDDB#PBF LT3498EDDB#TRMPBF LT3498EDDB#TRPBF

Manufacturer's Classification

Power Management > Switching Regulator > LCD/CCD/OLED Bias
Power Management > Switching Regulator > Step-Up (Boost) Regulators > Internal Power Switch Boost | Multiple Output Boost
Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers

EMS supplier

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Microcontrollers