The LM3538 is a highly integrated LED driver capable of driving 6 LEDs in parallel for single display backlighting applications. It features an adaptive charge pump with 1x and 1.5x gains to maximize efficiency without an inductor. The device includes four programmable LDOs (two at 300mA and two at 150mA) for powering peripheral modules like cameras. It supports multi-zone Ambient Light Sensing (ALS) for autonomous brightness control and provides an I2C-compatible interface for full configurability.
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| Number of Channels | 6channels |
| Input Voltage (Min) | 2.7V |
| Input Voltage (Max) | 5.5V |
| Max LED Current per Channel | 25mA |
| LDO Output Current (LDO1/2) | 300mA |
| LDO Output Current (LDO3/4) | 150mA |
| Efficiency | 90% |
| Dimming Steps | 128steps |
| Interface | I2C |
| Operating Temperature Range | -40 to 85°C |
| RoHS | Compliant |
| REACH | Affected |
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