IS31LT3938 - ISSI

IS31LT3938 High Voltage LED Lighting Driver

IS31LT3938 LED driver IC is a peak current detection buck converter which operates in constant off time mode. It operates over a very wide input voltage supply range of 10VDC to 450VDC or 110VAC/220VAC. IS31LT3938 incorporates the special feature of three power sequencing levels by detecting OFF-ON cycles of the main power switch. When the switch is cycled w.

Features

 User configurable power sequencing levels
 3% output current accuracy
 Over current, temperature protection and short circuit protection
 High efficiency (typical up to 95%)
 Higher MOS drive voltage
 Wide input voltage range: 10VDC~450VDC or 85Vac~ 265Vac
 Linear and PWM dimming
 Very few external components Applications
 DC/DC or AC/DC constant current LED driver
 Signal and decorative lighting
 Backlight LED driver High Voltage LED Lighting Driver with Three Level Power Sequencing General Description IS31LT3938 LED driver IC is a peak current detection buck converter which oper.