WLED driver IC for medium-sized LCD backlights, featuring SMBus/I²C control and PWM dimming. Operates from 5.5V to 22V input, delivering up to 60mA output current per channel across 7 channels. Supports an output voltage of 40V and an operating frequency range of 625 kHz to 1.25 MHz. Packaged in a 24-WQFN surface mount with dimensions of 4mm x 4mm x 0.8mm, suitable for operation between -30°C and 85°C.
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Texas Instruments LP8543SQE/NOPB technical specifications.
| Dimming | PWM |
| Features | I²C |
| Frequency | 1.25MHz |
| Height | 0.8mm |
| High Level Output Current | -3mA |
| Lead Free | Lead Free |
| Length | 4mm |
| Low Level Output Current | 3mA |
| Max Input Voltage | 22V |
| Min Input Voltage | 5.5V |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -30°C |
| Max Supply Current | 3.5mA |
| Max Supply Voltage | 22V |
| Min Supply Voltage | 5.5V |
| Mount | Surface Mount |
| Number of Channels | 7 |
| Number of Outputs | 7 |
| Number of Segments | 70 |
| Operating Frequency | 625 kHz to 1.25 MHz |
| Output Current | 60mA |
| Output Current per Channel | 60mA |
| Output Voltage | 40V |
| Package Quantity | 250 |
| Packaging | Tape and Reel |
| Radiation Hardening | No |
| Reach SVHC Compliant | No |
| RoHS Compliant | Yes |
| Topology | Boost |
| Width | 4mm |
| RoHS | Compliant |
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