TLD5095EL

LITIX™ Power TLD5095EL - Multitopology LITIX™Power DC/DC Controller IC 1 Overview 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. VIN = 4.5V to 45V VIN CIN LBO DBO CBO VCC or VIVCC VCC or VIVCC Status IC2 Microcontroller (e.g. XC866) Digi...