The TPS92643-Q1 is a monolithic, synchronous Buck LED driver with a wide 5.5-V to 36-V operating input voltage range and 40-V tolerance. It implements adaptive on-time average current mode control based on inductor valley current detection to provide a near-constant switching frequency between 100 kHz and 2.2 MHz. It supports high-precision 1000:1 PWM dimming and 15:1 analog dimming. The device includes integrated protection features such as cycle-by-cycle overcurrent protection, LED open/short circuit detection, and thermal shutdown.
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Texas Instruments TPS92643-Q1 technical specifications.
| Input Voltage (Min) | 5.5V |
| Input Voltage (Max) | 36V |
| Output Current (Max) | 3A |
| Switching Frequency (Max) | 2200kHz |
| Operating Temperature Range | -40 to 125°C |
| Number of Channels | 1 |
| Topology | Buck |
| Accuracy | 4% |
| Automotive Grade | AEC-Q100 Qualified |
| RoHS | Yes |
| REACH | Yes |
| Esd Hbm | Level H1C |
| Esd Cdm | Level C5 |
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