IC manufacturers Analog Devices

IC manufacturers (96)

Analog Devices LT3922 | Demoboard LT journal

36V, 2A Synchronous Step-Up LED Driver

Overview

TopologyBoost Converter
Input voltage8-27 V
Switching frequency200-2000 kHz
Output 130 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

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples
74437324022SPEC
8 files WE-LHMI SMT Power Inductor 2.2 4.05 4.45 8.4 61 49 SMT
Order Code Data­sheet Simu­lation
74437324022SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
fres
(MHz)
Mount Samples