TLD5045EJ

The TLD5045 is a highly integrated smart LED buck controller with built in protection functions. The main function of this device is to drive single or multiple series connected LEDs efficiently from a voltage source higher than the LED forward voltage by regulating a constant LED current. The constant current regulation is especially beneficial for LED color accuracy and long LED lifetime. The built in freewheeling diode and switching transistor with current sense requires less external components and saves system costs. High flexibility is achieved by placing low powerresistors to adjust output currents up to 700mA and the regulator switching frequency (typ. 200kHz). An integrated PWM dimming engine provides a LED dimming function by placing a simple RC network to GND. This feature is dedicated for decentralized light modules without microcontroller involvement. In addition to that an integrated status pull down transistor can be used to simulate a minimum current flow for decentralized modules to avoid a wrong open load detection by a highside switch located in the body control module (BCM).

ParametricTLD5045EJ
TopologyDC-DC Buck
VS  min  max5.0V  40.0V
IQ  max700.0mA
fSW  min  max50.0kHz  300.0kHz
Short Circuit ProtectionY
InhibitY
PWMY
Open Load DetectionY
Iq2.0µA
Operating Temperature  min  max-40.0°C  150.0°C
Sales Product NameTLD5045EJ
OPNTLD5045EJXUMA1
Product Statusactive and preferred
Package NamePG-DSO-8
Completely lead freeyes
Halogen freeyes
RoHS compliantyes
Packing Size2500
Packing TypeTAPE & REEL
Summary of Features:
  • Constant Current Generation
  • Wide Input Voltage Range from 5V to 40V
  • Peak Current Regulation
  • Very low current consumption (<2uA) in Sleep Mode
  • Integrated power transistor with low saturation voltage
  • Integrated fast freewheeling diode
  • Integrated load current sense resistor
  • Integrated status pull down transistor
  • Overtemperature Protection
  • Switching frequency (typ. 200kHz) ad justable via external RC network
  • External PWM Dimming Input
  • Integrated PWM Dimming Engine
  • Analog Dimming (output current adjustable via external low power resistor and possibility to connect PTC resistor for LED protection during overtemperature conditions)
  • Stable switching frequency due to fix OFF-time concept with VREC (supply voltage) feedforward
  • Under- and Overvoltage shutdown with hysteresis
  • Small thermally enhanced exposed heatslug SMD package
  • Automotive AEC Qualified
  • Green Product (RoHS) Compliant
Benefits:
  • Optimiced Featureset allows simple bulb replacement.
  • High degree of integration enables system cost savings
Target Applications:
  • Automotive LED driven Exterior: Lighting: Brake, Tail, CHMSL, Daytime Running Light, Position Light
  • Automotive LED driven Interior Lighting: Reading Light, Dome Light, Display Backlighting
Data Sheet
TitleSizeDateVersion
TLD5045EJ Data Sheet,EN730 KB28 五月 201501_00
Product Selection Guide
TitleSizeDateVersion
Automotive Power Selection GuideEN10.6 MB19 一月 201601_01
NEW! Power Management Selection Guide 2016EN4.7 MB22 二月 201600_00
Material Content SheetInfo
TitleSizeDateVersion
MCDS_2013-08-28_23-37-18_MA000982358_PG-DSO-8-27.pdf23 KB31 十月 201301_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Power_LED_drivers - Altium - v2.0105 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Cadence - v2.080 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Eagle - v2.017 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Mentor - v2.0102 KB28 十月 201302_00
Evaluation Boards
BoardFamilyDescriptionStatus
DEMOBOARD TLD5045EJLED Driver & Ballast ControllerBuck modeTLD5045EJon request
Simulation Models
TitleSizeDateVersion
TLD5045EJ P-Spice Model249 KB07 八月 201201_00
Package Data
TitleSizeDateVersion
PG-DSO-8-27 | TLD5045EJXUMA1EN496 KB11 四月 201601_00
PCB Design Data
TitleSizeDateVersion
PCB Footprints & Symbols - Power_LED_drivers - Altium - v2.0105 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Cadence - v2.080 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Eagle - v2.017 KB28 十月 201302_00
PCB Footprints & Symbols - Power_LED_drivers - Mentor - v2.0102 KB28 十月 201302_00
EN TLD5045EJ
EN TLE8203E
EN IDV20E65D1
MCDS_2013-08-28_23-37-18_MA000982358_PG-DSO-8-27.pdf TLD5045EJ
TLD5045EJ P-Spice Model TLD5045EJ
EN TLD5045EJ
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