Evaluation Board using LM3519 step up DC-DC converter of four white LEDs for LCD backlighting in handheld devices
Using Part
Vignette
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Documents connexes
Pour les produits finaux
- Cellular Phone
- Digital Still Camera (DSC)
- LCD Backlighting
- Lighting
- Personal Digital Assistant
Description
- Evaluation Board using LM3519 Evaluation board is a working demonstration of a step up DC-DC converter. The LM3519 drives up to 4 white LEDs with constant current to provide LCD backlighting in handheld devices. The LED current is internally set to 20mA eliminating the use of external resistor. Brightness control is achieved by applying a PWM signal on En pin with frequencies up to 30 kHz
Caractéristiques principales
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Input Voltage2.7 to 5.5 V
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Output Current0.02 A
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Number of Derived Elements4
Pièces en vedette (2)
| Pièce numéro | Fabricant | Type | Description | |||
|---|---|---|---|---|---|---|
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LM3519MK-20/NOPB | Texas Instruments | LED Drivers | LED Driver 4 Segment 900uA Supply Current 6-Pin TSOT-23 T/R | Ajouter au panier | |
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LM3519MK-20/NOPB | Texas Instruments | LED Drivers | LED Driver 4 Segment 900uA Supply Current 6-Pin TSOT-23 T/R | Ajouter au panier | |