The LM2755 is a charge-pump-based, constant-current LED driver capable of driving 3 LEDs with a total output current up to 90mA. It features an I2C-compatible interface for programmable timing and brightness, offering 32 exponential dimming steps with an 800:1 dimming ratio. The device operates in gains of 1x or 3/2x to maximize efficiency over a wide input voltage range of 2.7V to 5.5V without the need for an inductor.
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Texas Instruments LM2755 technical specifications.
| Number of Channels | 3Channels |
| Input Voltage (Min) | 2.7V |
| Input Voltage (Max) | 5.5V |
| LED Current per Channel | 25mA |
| Total Output Current (Max) | 90mA |
| Dimming Ratio | 800:1 |
| Topology | Charge Pump, Current Sink |
| Operating Temperature Range | -30 to 85°C |
| Quiescent Current (Typ) | 1mA |
| Shutdown Current (Typ) | 3µA |
| RoHS | Compliant |
| REACH | Affected |
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