ILD4180 Infineon Technologies, ILD4180 Datasheet - Page 2

• Manufacturer Part Number: ILD4180
• Description: LED Drivers MCREL 1.8A DC/DC
• Manufacturer: Infineon Technologies
• Type: Buckr

Specifications of ILD4180

• Packages: PG-DSO-8
• Vs (min): 4.75 V
• Vs (max): 45.0 V
• Iout (typ): 1,800.0 mA
• Iout (max): 1,800.0 mA
• Lead Free Status / Rohs Status: Details
• Other names: ILD4180XT

1.8A DC/DC Step-Down Converter
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Description
The ILD4180 is a smart LED buck converter with an integrated power-switch, capable of driving up to 1.8A load
current with excellent line and load regulation. The main function of this device is to step-down the input voltage
and regulating a constant LED current. The constant current regulation is especially beneficial for LED color
accuracy and longer lifetime. The ILD4180 also has a PWM input which can be used for LED dimming. The
switching frequency of 370kHz allows to use small and inexpensive passive components. An Enable function is
implemented to reduce the shut-down current consumption to typ. 100nA. This IC provides protection functions
such as current limitation and overtemperature shutdown. The integrated soft-start feature avoids a current and
voltage overshot at the output during start-up of the device.
Applications
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For automotive and transportation applications, please refer to the Infineon® Auto LED products.
Type
ILD4180
Datasheet
Wide Input Voltage Range from 4.75V to 45V
Constant Current or Constant Voltage Regulation
Drives LEDs in Buck Topology
Very low shutdown current consumption (typ. 100nA)
370 kHz switching frequency
PWM Dimming
Integrated power-switch (output current up to 1.8A)
Internal Soft-Start function
± 2% output current tolerance (± 4% for full load current range)
Small thermally enhanced exposed heatslug package
Over Temperature Shutdown
Suited for industrial applications: Tj = -40 °C to +125 °C
Green Product (RoHS Compliant)
LED Controller for industrial applications
Universal Constant Current and Voltage Source
General Illumination e.g. Halogen Replacement
Residential Architectural and Industrial Commercial Lighting for in- and outdoor
Signal and Marker Lights for Orientation or Navigation (e.g. steps, exit ways, etc.)
Overview
Package
PG-DSO-8-27
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Marking
ILD4180
PG-DSO-8-27
Rev. 1.1, 20011-01-25
ILD4180