TLD5099EP
Overview
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.
Summary of Features
- 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
Potential Applications
- Automotive exterior and interior lighting
- General illumination
- General purpose current/voltage controlled DC-DC driver
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