TLD5099EP

Überblick

LITIX™ Power TLD5099EP is a flexibly usable DC-DC boost controller with built in diagnosis and protection features especially designed to drive LEDs

It also includes an integrated pulse width modulator to easily implement a dimming function with reduced color shifting and a spread spectrum modulator to improve the EMI performance. It is designed to support fixed current and fixed voltage configurations in multiple topologies such as Boost, Buck, Buck-Boost, SEPIC and Flyback by simply adjusting the external components. The TLD5099EP drives a low side n-channel power MOSFET from an internal 5 V linear regulator.

Zusammenfassung der Merkmale

  • Fixed current or fixed voltage configuration in Boost, Buck, Buck-Boost, SEPIC and Flyback topology
  • Drives low-side external n-channel switching MOSFET from internal 5 V voltage regulator
  • Flexible switching frequency range from 100 kHz to 500 kHz with spread spectrum modulator
  • Synchronization with external clock source
  • Wide input voltage range from 4.5 V to 45 V
  • Enable & PWM functions with very low shutdown current: IQ_OFF < 15 µA at 105°C
  • Analog dimming and PWM dimming feature (embedded or external) to adjust average LED current
  • PWMO gate driver for PWM dimming and output disconnection

Potentielle Zielanwendungen

  • Automotive exterior and interior lighting
  • General illumination
  • General purpose current/voltage controlled DC-DC driver
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