Datasheet Details
| Part number | CP2122 |
|---|---|
| Manufacturer | CHIP |
| File Size | 146.52 KB |
| Description | Step-Up White-LED Driver |
| Datasheet |
 CP2122 Datasheet
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General Description
The CP2122 is a step-up DC/DC converter specifically designed for driving white LEDs with a constant current.
Operation at a fixed switching frequency of 1.4MHz allows the device to be used with small value external ceramic capacitors and inductors.
Key Features
- an internal soft start to eliminate inrush current during startup. Equipped with built-in over-voltage protection function, the device enters a very low power operating mode during the “OPEN LED” fault conditions. The CP2122 is available in SOT23-5L package. SOT23-5L -40℃~85℃ Features y y y y y y y y Switch current limit 700mA Drives LED strings up to 34V Up to 84% efficiency Soft start “in-rush” current limiting Fast 1.4 MHz switching frequency Built-in over-voltage protection Shutdown curren.