Datasheet Details
| Part number | CAT4139 |
|---|---|
| Manufacturer | onsemi |
| File Size | 386.01 KB |
| Description | 22V High Current Boost White LED Driver |
| Datasheet |
 CAT4139 Datasheet
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General Description
The CAT4139 is a DC/DC step
up converter that delivers an accurate constant current ideal for driving LEDs.
Operation at a fixed switching frequency of 1 MHz allows the device to be used with small value external ceramic capacitors and inductor.
Key Features
- Switch Current Limit 750 mA.
- Drives LED Strings up to 22 V.
- Up to 87% Efficiency.
- Low Quiescent Ground Current 0.6 mA.
- 1 MHz Fixed Frequency Low Noise Operation.
- Soft Start “In.
- rush” Current Limiting.
- Shutdown Current Less than 1 mA.
- Open LED Overvoltage Protection.
- Automatic Shutdown at 1.9 V (UVLO).
- Thermal Overload Protection.
- TSOT.
- 23 5.
- Lead (1 mm Max Height).
- These Devices are Pb.
- Free, Halogen Free/B.