IS31LT3932-GRLS2-TR

Vdd(V) 85-265AC
IOUT ±3%
Solder Lead-free (RoHS Compliant)
Status Prod
Outpack Tape on Reel
Pkg Pin(mm) SOP-8
Document BULB_EB , BULBISO_EB
Efficiency(%) 85
Temp.Range Industrial Grade (-40ºC to 85ºC)
Driver Type AC/DC
Type 3932
Product Type LT = Lighting LED Driver
Product Family 31 = Commercial/Industrial Analog
Power Transistor External
Package Type GR = SOP
Solder Type L = Lead-free (RoHS Compliant)
Part Number 3932 = 3932
Temperature Grade S2 = Industrial temp. (-40°C to 85°C)
Package option TR = Tape & Reel

IS31LT3932-GRLS2-TR Features

  • Universal isolation and non-isolation
  • Single stage PFC fly-back
  • No loop compensation required
  • No Opto-coupler required
  • Wide input voltage: 85Vac~265Vac
  • Low start-up current (15µA)
  • Valley turn-on MOSFET to achieve high efficiency for buck application December 2013
  • Few external components
  • UVLO,OCP,OVP and OTP protections
  • SOP-8 package APPLICATION
  • LED bulb
  • LED tube lamp

Overview

IS31LT3932 is a universal LED driver, which can operate in fly-back, buck-boost and buck convertor. For isolation fly-back, it can achieve high PF, high current accuracy, ±5% load and line regulation and wide voltage input voltage range, without loop compensation. For buck convertor, it also can achieve high PF, high current accuracy, high efficiency, good load and line regulation and wide voltage input voltage range, without loop compensation. With few external components. IS31LT3932 has special power line sense and output voltage sense circuits, operates in primary feedback mode without Opto-coupler and achieve stable output current control without any loop compensation. IS31LT3932 has multiple protections to improve the system reliability, including LED open circuit, LED short circuit, UVLO, OVP, current sense resistor short, the primary over current limit and over temperature protections. TYPICAL OPERATING CIRCUIT.