ELM900xCMOS White LED flashlight driver
ELM900x is CMOS white LED flashlight driver.
This series can drive two series connected white LED by 1.5V to 3.0V input voltage.
ELM900 series uses an external inductor as voltage booster and consists of an oscillator circuit and a driving transistor.
The input DC power is transformed to constant current pulse when the external inductor is switched on and repeatly at the frequency : 35kHz, 55kHz.
| Low noise | 35kHz, 55kHz |
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| Constant average power control | |
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| High efficiency | |
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| Package | SOT-89 |
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| Datasheet | ELM900-series |
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- Application
- White LED flashlight
- Laser pointer
- LCD backlighting
