TLD5085EJ

The TLD5085EJ 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 TLD5085EJ 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. 0.1μA. This IC is suited for use in the harsh automotive environments and provides protection functions such as current limitation and overtemperature shutdown. The integrated soft-start feature avoids a current and voltage over shot at the output during start-up of the device.

ParametricTLD5085EJ
TopologyDC-DC Buck
VS  min  max4.75V  45.0V
IQ  max1800.0mA
fSW370.0kHz
Tolerance2(4)%
Short Circuit ProtectionY
InhibitY
PWMY
Open Load DetectionN
Iq1.0µA
Operating Temperature  min  max-40.0°C  150.0°C
Sales Product NameTLD5085EJ
OPNTLD5085EJFUMA1
Product Statusdiscontinued
Package NamePG-DSO-8
Completely lead freeyes
Halogen freeavailable
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Moisture Level3
Summary of Features:
  • 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. 0.1μA)
  • 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
  • AEC Qualified
  • Green Product (RoHS Compliant)
Target Applications:
  • Automotive Lighting (Reading Light, Dome Light, Dashboard Backlighting)
  • High Power LED Applications
  • Constant Current and Voltage Source
Data Sheet
TitleSizeDateVersion
TLD5085EJ DataSheet,EN523 KB06 May 201501_01
Product Selection Guide
TitleSizeDateVersion
NEW! Power Management Selection Guide 2016EN4.7 MB22 Feb 201600_00
Automotive Power Selection GuideEN10.6 MB19 Jan 201601_01
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Power_LED_drivers - Altium - v2.0105 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Cadence - v2.080 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Eagle - v2.017 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Mentor - v2.0102 KB28 Oct 201302_00
Simulation Models
TitleSizeDateVersion
TLD5085EJ P-Spice Model703 KB09 Mar 201201_00
Package Data
TitleSizeDateVersion
PG-DSO-8-27 | TLD5085EJFUMA1EN500 KB11 Apr 201601_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Power_LED_drivers - Altium - v2.0105 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Cadence - v2.080 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Eagle - v2.017 KB28 Oct 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Mentor - v2.0102 KB28 Oct 201302_00
EN TLD5085EJ
EN TLE8203E
EN IDV20E65D1
TLD5085EJ P-Spice Model TLD5085EJ
EN TLD5085EJ
PCB Footprints & Symbols - Power_LED_drivers - Altium - v2.0 TLD5098EL
PCB Footprints & Symbols - Power_LED_drivers - Cadence - v2.0 TLD5098EL
PCB Footprints & Symbols - Power_LED_drivers - Eagle - v2.0 TLD5098EL
PCB Footprints & Symbols - Power_LED_drivers - Mentor - v2.0 TLD5098EL