Analog Devices LT3922 | Demoboard LT journal | Würth Elektronik Reference Design Search

Overview

Topology	Boost Converter
Input voltage	8-27 V
Switching frequency	200-2000 kHz
Output 1	30 V / 0.33 A

Description

It is an LT Journal, Synchronous, Low EMI LED DriverFeatures Integrated Switches andInternal PWM Dimming

Features

±2% LED Current Regulation±2% Output Voltage Regulation5000:1 PWM Dimming at 100Hz128:1 Internal PWM DimmingSpread-Spectrum Frequency ModulationSilent Switcher® Architecture for Low EMIOperates in Boost, Buck Mode and Buck-Boost Mode2.8V to 36V Input Voltage RangeUp to 34V LED String Voltage2A, 40V Internal Switches200kHz to 2MHz with SYNC FunctionAnalog or Duty Cycle LED Current ControlOpen/Short LED Protection and Fault IndicationThermally Enhanced 28-Pin (4mm × 5mm) QFN

Typical applications

Machine Vision
Automotive and Industrial Lighting

More information

Products

Order Code	Datasheet	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	f_res (MHz)	Mount	Z @ 100 MHz (Ω)	Z_max (Ω)	Test Condition Z_max	I_{R 2} (mA)	R_{DC max.} (mΩ)	Type
74437324047	SPEC	8 files EDA models: Components ZIP ALT WE-LHMI (rev24b).IntLib \| 1 MB ZUK Download_CadStar_WE-LHMI (rev19a).zip \| 16.7 KB CDS Cadence_WE-LHMI (rev24a).zip \| 3.8 MB EAG Eagle_WE-LHMI (rev24c).lbr \| 193.1 KB CAD files ZIP IGS WE-LHMI_4020 (rev1).igs \| 943.7 KB STP WE-LHMI_4020 (rev1).stp \| 377.6 KB Electric models ZIP PSP PSpice_WE-LHMI (rev24b).zip \| 33.5 KB SCS Spectre_WE-LHMI (rev24a).mod \| 43.1 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-LHMI SMT Power Inductor	4.7	2.95	2.45	5.4	31	SMT	–	–	–	–	105	–
7427920415	SPEC	8 files EDA models: Components ZIP ALT WE-CBF (rev24a).IntLib \| 230 KB ZUK Cadstar_WE-CBF (rev21a).zip \| 17.5 KB CDS Cadence_WE-CBF (rev24a).zip \| 776.7 KB EAG Eagle_WE-CBF (rev24a).lbr \| 163 KB CAD files ZIP IGS WE-CBF_0805_CBF (rev1).igs \| 158.2 KB STP WE-CBF_0805_CBF (rev1).stp \| 34.7 KB Electric models ZIP PSP PSpice_WE-CBF (rev24a).zip \| 26.9 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-CBF SMT EMI Suppression Ferrite Bead	–	–	–	–	–	SMT	600	660	150 MHz	1500	300	Wide Band
742792097	SPEC	8 files EDA models: Components ZIP ALT WE-CBF (rev24a).IntLib \| 230 KB ZUK Cadstar_WE-CBF (rev21a).zip \| 17.5 KB CDS Cadence_WE-CBF (rev24a).zip \| 776.7 KB EAG Eagle_WE-CBF (rev24a).lbr \| 163 KB CAD files ZIP IGS WE-CBF_0805_CBF (rev1).igs \| 158.2 KB STP WE-CBF_0805_CBF (rev1).stp \| 34.7 KB Electric models ZIP PSP PSpice_WE-CBF (rev24a).zip \| 26.9 KB Download all 8 files as zip archive ZIP	Active i\| Production is active. Expected lifetime: >10 years.	WE-CBF SMT EMI Suppression Ferrite Bead	–	–	–	–	–	SMT	1500	1800	70 MHz	1000	300	High Current

	Order Code	Datasheet	Simulation
	74437324047	SPEC
	7427920415	SPEC
	742792097	SPEC

Samples

	Order Code	Datasheet	Simulation	Downloads	Status	Product series	L (µH)	I_RP,40K (A)	I_SAT,10% (A)	I_SAT,30% (A)	f_res (MHz)	Mount	Z @ 100 MHz (Ω)	Z_max (Ω)	Test Condition Z_max	I_{R 2} (mA)	R_{DC max.} (mΩ)	Type	Samples

IC manufacturers (99)

Analog Devices LT3922 | Demoboard LT journal

36V, 2A Synchronous Step-Up LED Driver

Overview

Description

Features

Typical applications

More information

Products

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

EDA models: Components
ZIP

CAD files
ZIP

Electric models
ZIP

Download all 8 files as zip archive
ZIP

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