TPS92643-Q1 Automotive 3-A Synchronous Buck LED Driver

1 Features

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 C5
Functional Safety-Capable
- Documentation available to aid functional safety system design
Input voltage range: 5.5 V to 36 V
- Operation down to 5.15 V after start-up
Up to 3-A continuous with 4% accuracy
Adaptive on-time current control
- Low offset high-side current sense amplifier
- Stable with any combination of ceramic, and aluminum capacitors
Programmable switching frequency from 100 kHz to 2.2 MHz
Advanced dimming operation
- 1000:1 precision PWM dimming
- 15:1 precision analog dimming
- 1.4-kHz internal analog input to PWM duty cycle translation
Cycle-by-cycle switch overcurrent protection
Open-drain fault indicator output
- LED short circuit, open circuit and cable harness fault indication
Thermal shutdown protection