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ISSI IS32BL3556

IS32BL3556 WIDE INPUT VOLTAGE RANGE, HIGH EFFICIENCY FAULT TOLERANT LED DRIVER

Overview

Topology Boost Converter
Input voltage 4.75-40 V
Switching frequency 2300 kHz
Output 1 12 V / 3 A
IC revision B

Description

http://www.issi.com/WW/pdf/IS32BL3556EvalBoard.pdfIS32BL3556 WIDE INPUT VOLTAGE RANGE, HIGH EFFICIENCYFAULT TOLERANT LED DRIVERThe IS32BL3556 is a white LED driver for backlightapplications based on a highly efficient boost controlleroperating over a wide input voltage range of 4.75V to40V. The boost converter can drive up to 48 LED, 12LED per string, at 120mA. The LED sinks can beparalleled together to achieve even higher LEDcurrents, up to 480mA.The IS32BL3556 is available in a thermally enhancedeTSSOP-20 package. It is lead (Pb) free, with 100%matte tin lead frame plating.

Features

Input voltage range is 4.75V to 40V for start/stop,cold crank and load dump requirements

  • Excellent input voltage transient response
  • Sync function to synchronize boost converterswitching frequency up to 2.3MHz, allowingoperation above the AM band
  • Single resistor primary OVP minimizes VOUTleakage
  • AEC-Q100 qualified (pending)

Products

Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Size Version Samples
7447709100
IGS STP ALT EAG CAD LTS PSP SPE CAD WE-PD SMT Power Inductor 10 7.1 10.5 13 21 21 1210 Standard
Order Code Data­sheet
7447709100
Samples
Order Code Data­sheet Downloads Product series L
(µH)
IR
(A)
ISAT
(A)
RDC typ.
(mΩ)
RDC max.
(mΩ)
fres
(MHz)
Size Version Samples