IS31BL3506B

LED 8
Status Prod
Vdd(V) 2.7~5.5
ISD(uA) 1.5
Document Eval Board
IOUT(mA) 20
Pkg-Pin(mm) TSOT23-6(3X3)
Type Of Driver Boost
Intensity Ctrl. PWM or DC Level
Product Family 31 = Commercial/Industrial Analog
Part Number 3506 = 3506
Product Type BL = White LED Driver for LCD Backlight
Package option blank = Tray or Tube

IS31BL3506B Features

  • Drive series strings of 8 LEDs
  • PWM or DC voltage dimming Frequency of PWM is 500Hz ~ 500kHz
  • 1.0MHz high speed switching frequency
  • 200mV feedback voltage
  • Integrated high power MOSFET
  • Over voltage protection
  • Notebook PC

Overview

IS31BL3506B is a boost converter featuring an integrated MOSFET switch designed for driving series strings of LED or other device. Input operating voltage range is 2.7V~5.5V. The device regulates the LED load current is set using an external, low value sensing resistor. The device adjusts the PWM duty cycle of the switch to maintain the voltage at the FB pin at a value of 0.2V. The IS31BL3506B operates at a constant switching frequency of 1.0MHz to allow for small component size. IS31BL3506B features an over voltage shutdown pin which prevents the output voltage from exceeding 35V (typ.) in the case of an open circuit condition. The device is offered in a tiny TSOT-23-6 and SOT-23-6 package and a temperature rating from -40°C ~ +85°C.

 

Related Part Number(s)

Description Stock Qty Available Qty Description Stock Qty Available Qty
IS31BL3506B-STLS2-TR 3,000 IS31BL3506B-TTLS2-TR