IC manufacturers Analog Devices

IC manufacturers (98)

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 Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples
742792040SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 600 700 150 MHz 2000 0.15 High Current
742792097SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 1500 1800 70 MHz 1000 0.3 High Current
Order Code Data­sheet Simu­lation
742792040SPEC
742792097SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesZ @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples