Datasheet Linear Technology LTC3216

Manufacturer	Linear Technology
Series	LTC3216

1A Low Noise High Current LED Charge Pump with Independent Torch/Flash Current Control

Datasheets

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PDF, 173 Kb, Revision: C, File uploaded: Sep 27, 2017

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Packaging

	LTC3216EDE#PBF	LTC3216EDE#TRPBF
N	1	2
Package	4x3 DFN-12 Package Outline Drawing	4x3 DFN-12 Package Outline Drawing
Package Code	DE/UE	DE/UE
Package Index	05-08-1695	05-08-1695
Pin Count	12	12

Parametrics

Parameters / Models	LTC3216EDE#PBF	LTC3216EDE#TRPBF
Demo Boards	DC805A	DC805A
Design Tools	LTspice Model	LTspice Model
Export Control	no	no
Frequency, kHz	900	900
Ishutdown, µA	2.5	2.5
Isupply, mA	7	7
Max Number of LEDs	1	1
Monolithic	yes	yes
Number of Outputs	1	1
Operating Temperature Range, °C	0 to 85	0 to 85
Output Current, A	1	1
Synchronous	no	no
Topology	Charge Pump, LED Driver	Charge Pump, LED Driver
Vin Max, V	4.4	4.4
Vin Min, V	2.9	2.9
Vout Max, V	5.1	5.1

Eco Plan

	LTC3216EDE#PBF	LTC3216EDE#TRPBF
RoHS	Compliant	Compliant

Design Notes

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Tiny, Efficient High Power LED Camera Flash Solutions for Cell Phone Applications &mdash DN1009
PDF, 69 Kb, File published: Oct 1, 2004
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advertisement Tiny, Efficient High Power LED Camera Flash Solutions for
Cell Phone Applications вЂ“ Design Note 1009
Keith Szolusha
Introduction
Cell phones and PDAs are approaching the limit for small
form factors, but their feature sets are growing with new
functions such as built-in cameras and even video cameras.
The initial in-phone cameras were basic, low resolution devices with little in the way of usable flash capability. However, cell phone camera resolutions have improved and
sophisticated flash technology is expected to keep pace.
There are two flash technologies used in digital still cameras. The first uses a Xenon flash lamp to provide a very
short, high lumen flash with excellent spectral characteristics. LTC offers Xenon photoflash solutions that are
simple, compact and efficient (see Design Note 345).
The second flash technology uses LEDs. LED solutions hold
the upper hand when simplicity and space is at a premium
and they are the only choice when вЂ?torchвЂ™ or video-mode
lighting is required. LED flash units fit into spaces where
even the smallest Xenon photoflash cannot. Until recently,
LEDs could not compete with Xenon solutions in light
output and spectral performance, relegating them to the
realm of low resolution (sub 1 megapixel) cameras. However, recent (>10Г—) performance improvements have made LEDs an attractive solution for the now popular 1 megapixel
and higher cell phone cameras.
Linear Technology offers many simple and extremely
compact solutions for driving the latest high-light-output LEDs, including Lumileds Luxeon Flash LEDs. These …

Model Line

Series: LTC3216 (2)

LTC3216EDE#PBF LTC3216EDE#TRPBF

Manufacturer's Classification

Power Management > Inductorless (Charge Pump) DC/DC Converters > Inductorless (Charge Pump) LED Drivers