TLD5095EL_15 Datasheet, PDF (3/35 Pages) Infineon Technologies AG – Multitopology LITIX Power DC/DC Controller IC

TLD5095EL
Infineon® LITIX™ Power
1
Overview
• Wide Input Voltage Range from 4.75 V to 45 V
• Constant Current or Constant Voltage Regulation
• Drives LEDs in Boost, Buck, Buck-Boost, SEPIC and Flyback
• Topology
• Very Low Shutdown Current: IQ< 10 µA
• Flexible Switching Frequency Range, 100 kHz to 500 kHz
• Synchronization with external clock source
• Output Open Circuit Diagnostic Output
PG-SSOP-14
• PWM Dimming
• Internal Soft Start
• 300mV High Side Current Sense to ensure highest flexibility and LED current accuracy
• Internal 5 V Low Drop Out Voltage Regulator
• Wide LED current range via simple adaptation of external components
• Available in a small thermally enhanced PG-SSOP-14 package
• Output Overvoltage Protection
• Over Temperature Shutdown
• Automotive AEC Qualified
• Green Product (RoHS) Compliant
Description
The TLD5095EL is a smart multitopology LED controller with built in protection and diagnostic features. The main
function of this device is to regulate a constant LED current. The constant current regulation is especially beneficial for
LED color accuracy and longer lifetime. The controller concept of the TLD5095EL allows a multi-purpose usage such as
Boost, Buck, Buck-Boost, SEPIC and Flyback configuration with various load current levels by simply adjusting the
external components. The TLD5095EL has a PWM output for dimming a LED load. The diagnostics are communicated
on a status output (pin ST) to indicate a fault condition such as an LED open circuit. The switching frequency is adjustable
in the range of 100 kHz to 500 kHz and can be synchronized to an external clock source. The TLD5095EL features an
enable function reducing the shut-down current consumption to <10 µA. The current mode regulation scheme of this
device provides a stable regulation loop maintained by small external compensation components. The integrated soft-
start feature limits the current peak as well as voltage overshoot at start-up. This IC is suited for use in the harsh
automotive environments and provides protection functions such as output overvoltage protection and
overtemperature shutdown.
Application
• Automotive Exterior and Interior Lighting
Type
TLD5095EL
Data Sheet
Package
PG-SSOP-14
3
Marking
TLD5095
Revision 1.4, 2015-03-11