Datasheet Linear Technology LTC3202EDD#PBF — Datenblatt

Hersteller	Linear Technology
Serie	LTC3202
Artikelnummer	LTC3202EDD#PBF

Geräuscharme, hocheffiziente Ladepumpe für weiße LEDs

Datenblätter

PDF, 260 Kb, Revision: A, Datei hochgeladen: Sep 27, 2017

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Preise

Verpackung

Package	3x3 DFN-10
Package Code	DD
Package Index	05-08-1699

Parameter

Demo Boards	DC395A,DC633A
Design Tools	LTspice Model
Export Control	no
Frequency	1500 kHz
Ishutdown	1 µA
Isupply	2.5 mA
Max Number of LEDs	8 (parallel)
Monolithic	yes
Number of Outputs	1
Operating Temperature Range	0 to 85 °C
Output Current	0.125 A
Synchronous	no
Topology	Charge Pump, LED Driver
Vin Max	4.5 V
Vin Min	2.7 V
Vout Max	4.5 V

Öko-Plan

RoHS

Compliant

Artikel

Herunterladen
LTC3202 Charge Pump Improves Efficiency for Powering White LEDs &mdash LT Journal
PDF, 171 Kb, Datei veröffentlicht: Sep 1, 2001
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DESIGN IDEAS LTC3202 Charge Pump Improves
Efficiency for Powering White LEDs
by Steven Martin
Introduction
White LEDs continue to make significant inroads as backlights for color
active-matrix liquid crystal displays
in portable equipment. They offer size,
reliability and cost advantages over
competing solutions such as cold
cathode fluorescent lamps (CCFLs).
However, they require a higher voltage than can be provided by a sagging
lithium-ion battery. Charge pumps
provide an economical and compact
means of attaining a modest increase
in voltage.
Although charge pump solutions
are simple, they can have drawbacks.
They are typically noisy and have only IIN
100mA/DIV 0mA 200ns/DIV Figure 2. Input current waveform at the input bypass capacitor DESIGN IDEAS
LTC3202 Charge Pump Improves
Efficiency for Powering White LEDs
. 31
Steven Martin SMBus Controls CPU Voltage …

Modellreihe

Serie: LTC3202 (4)

LTC3202EDD#PBF LTC3202EDD#TRPBF LTC3202EMS#PBF LTC3202EMS#TRPBF

Herstellerklassifikation

Power Management > Inductorless (Charge Pump) DC/DC Converters > Regulated Step-Up Charge Pumps | Inductorless (Charge Pump) LED Drivers

Andere Namen:

LTC3202EDDPBF, LTC3202EDD PBF

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