The ZXLD1350EV4, Figure 1, is an evaluation board for the ZXLD1350 350mA LED driver with internal switch. The board can be used to drive 1, 2 or 3 one-watt LEDs, or an external choice of LEDs. The number of external LEDs which can be connected depends on their combined forward voltage drop.
The operating voltage is nominally 24V. For three 1W series-connected LEDs, the voltage can be from 12V minimum to 30V maximum. The 100uH inductor used in the circuit is based on a nominal 24V supply, which should be connected across the +VIN and GND pins.
Note: The board does not have reverse battery protection. The nominal current through the LEDs is set at 300mA with a 0.33Ω sense resistor, Rs.
| Manufacturer | Diodes Incorporated |
|---|---|
| Category | Lighting |
| Sub-Category | LED Drivers - DC In |
| Eval Board |
Board not Stocked
|
| Voltage In |
7 ~ 30 V
|
| Topology |
Step Down
|
| Current Out |
300 mA
|
| Voltage Out (Max) |
10 V
|
| Outputs and Type |
1 Non-Isolated
|
| Efficiency @ Conditions |
>89%, 12 ~ 24 Viin, 11V @ 300 mA
|
| Features |
Dimming Control
Open Circuit Protection Over Voltage Protection Soft Start |
| Switching Frequency |
160 kHz
545 kHz |
| Component Count + Extras |
6 + 11
|
| Design Author |
Diodes/Zetex
|
| Application / Target Market |
Automotive
Lighting: LED Signage |
| Main I.C. Base Part |
ZXLD1350
|
| Date Created By Author | |
| Date Added To Library | 2011-03 |
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