IS31LT3360

IOUT 1.2A±3%
Status Prod
Vdd(V) 6-40
Pkg Pin SOP89-5
Document MR16_EB, AIC_EB, SG_EB, 3CH_EB,
Driver Type DC/DC, Step-down
Efficiency(%) 98
Power Transistor Built-in
Product Family 31 = Commercial/Industrial Analog
Part Number 3360 = 3360
Product Type LT = Lighting LED Driver
Package option blank = Tray or Tube

IS31LT3360 Features

  • Up to 1.2A output current
  • High efficiency (up to 98%)
  • Wide input voltage range: 6V ~ 40V
  • Simple low parts count
  • Typical 3% output current accuracy (-40°C to Internal 40V power switch +105°C, IS31LT3360-SDLS3-TR)
  • Typical 5% output current accuracy (-40°C to +125°C, IS31LT3360-SDLS4-TR)
  • Single pin on/off and brightness control using DC voltage or PWM
  • Up to 1MHz switching frequency
  • Inherent LED open-circuit/short-circuit protection
  • Thermal shutdown protection circuitry
  • Up to 1200: 1 dimming ratio
  • Automotive and avionic lighting
  • LED MR16, MR11 spot light
  • LED street light
  • PAR light
  • Refrigeration lights

Overview

The IS31LT3360 is a continuous mode inductive step-down converter, designed for driving a single LED or multiple series connected LEDs efficiently from a voltage source higher than the LED voltage. The chip operates from an input supply between 6V and 40V and provides an externally adjustable output current of up to 1.2A. The IS31LT3360 includes an integrated output switch and a high-side output current sensing circuit, which uses an external resistor to set the nominal average output current. Output current can be adjusted linearly by applying an external control signal to the ADJ pin. The ADJ pin will accept either a DC voltage or a PWM waveform. This will provide either a continuous or a gated output current. Applying a voltage less than 0.2V to the ADJ pin turns the output off and switches the chip into a low current standby state. The chip is assembled in SOT89-5 package. It operates from 6V to 40V over two temperature ranges of -40°C to +105°C and -40°C to +125°C.

 

Related Part Number(s)

Description Stock Qty Available Qty Description Stock Qty Available Qty
IS31LT3360-SDLS3-TR 10,000 IS31LT3360-SDLS4-TR 2,500