TPS92519-Q1
Overview
The TPS92519-Q1 is a monolithic dual synchronous buck LED driver with a wide 4.5-V to 65-V operating input voltage range that can independently power two strings of series connected LEDs. The TPS92519-Q1 implements an adaptive on-time average current mode control and is designed to be compatible with shunt FET dimming techniques and LED matrix manager-based dynamic beam headlamps.
- AEC-Q100 qualified for automotive applications - Grade 1: -40°C to 125°C ambient operating temperature - Device HBM classification level H1C - Device CDM classification level C2
- Functional Safety-Capable - Documentation available to aid functional safety system design
- 4.5-V to 65-V wide input voltage range
- Up to 2-A output current with 4% accuracy
- Adaptive on-time average current control
- Nominal switching frequency - 385 kHz and 435 kHz for channel 1 and channel 2 - 2 MHz and 2.1 MHz for channel 1 and channel 2
- Advanced dimming operation - Precision analog dimming - Supports external PWM dimming input - Optimized for external shunt dimming including LED matrix manager
- Cycle-by-cycle switch overcurrent protection
- Switch thermal protection
- LED open and short fault monitoring and reporting
