This circuit is designed to drive a parallel array of GaP or GaNbased LEDs at a forward current of 200 mA with a total forward voltage ranging from 2.5V to 3.5V.
LED/inductor current ripple will not exceed 50 mA pk-pk. Average output current varies from 192 mA to 6V to 208 mA at 40V.
The input is 6V to 40V including lowest battery voltage and charging transients. Switching frequency is 450 kHz to 650 kHz depending on LED chemistry (VF).
| Manufacturer | Texas Instruments |
|---|---|
| Category | Lighting |
| Sub-Category | LED Drivers - DC In |
| Eval Board |
Board not Stocked
|
| Voltage In |
6 ~ 40 V
|
| Topology |
Step Down
|
| Current Out |
200 mA
|
| Voltage Out (Max) |
3.5 V
|
| Outputs and Type |
1 Non-Isolated
|
| Efficiency @ Conditions | |
| Features |
Current Limit (Adj. or Fixed)
Dimming Control Open Circuit Protection Shutdown, Enable, Standby Thermal Protection |
| Switching Frequency | |
| Component Count + Extras |
8 + 0
|
| Design Author |
Texas Instruments
|
| Application / Target Market | |
| Main I.C. Base Part |
LM3402
|
| Date Created By Author | |
| Date Added To Library | 2011-03 |
Brazil
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